Holotype female dissected on one slide, shells on SEM stub (NIBR IV 0000879898_1). Paratypes: three males and one female dissected on one slide, shells on SEM stub (NIBR IV 0000879898_2;3;4 &5). All from the type locality: South Korea, Busan, Min-rack harbor (35°09'11.9"N, 129°07'38.4"E), collected by the Marin Biodiversity Institute of Korea (MABIK) on 11 April 2019.

This species is named in reference to the type locality. It is used as an adjective for a place, with the Latin suffix -ensis.

Surface of the shell mostly smooth. Posterior infold of the carapace with a broad shelf. Dorsal margin rounded in both female and male. Posterior end clearly wider than anterior. Lateral eye well developed with black pigmented ommatidia. A1 8-segmented without d-bristle on the 8^th joint. Uropodal lamellae with nine claws.

Female. Shell (Fig. 2a–f) Carapace oval, broadening at posterior, greatest height near middle, carapace length 1.25 mm, height 0.94 mm. Nine small horn-like spines near dorsal margin. Posterior infold between broad list and valve margin without setae.

Figure 2. 

Light microscopy and scanning electron microscopy images of Parasterope busanensis sp. nov. a–f holotype female adult: a External view b Lateral view from left valve c Spines on dorsal margin d Internal view of anterior part e L5 ventral section f Internal view of posterior part g, h paratype male adult: g External view h Lateral view from right valve i Internal view of left valve.

A1 (Fig. 3a). 1^st joint: with no hair on broad surface; longer than 2^nd joint. 2^nd joint: one spinous dorsal seta, one short lateral bristle, and three proximal dorsal spines. 3^rd joint: seven setae (one short ventral and six dorsal). 4^th joint: three bristles (one long dorsal and two short ventral bristles) and two small ventral spines at mid length. 5^th joint: sensory bristle with six filaments without short proximal terminal. 6^th joint: one medial seta, attached to bottom of 7^th joint boundary. 7^th joint: a-bristle claw-like, bare; b-seta with marginal filaments; c-seta with marginal filaments. 8^th joint: d-bristle absent; e-bristle with blunt tip; f- and g-bristles with marginal filaments.

Figure 3. 

Parasterope busanensis sp. nov. holotype female adult: a A1 b Bellonci organ c A2 d Md e Mxl f L5 g L7 h F. Scale bar: 0.1 mm.

Bellonci organ (Fig. 3b). Elongate with rounded tip, constriction at mid-point.

Eyes . Lateral eye with many ommatidia obscured by black pigment; 13 ommatidia visible. Medial eye rounded and unpigmented.

A2. Protopodite: rounded without medial bristle. Endopodite (Fig. 3c): 2-jointed with long terminal bristle. Exopodite: 9-jointed; bristle of 2^nd segment with spinules along ventral margin and spines along dorsal margin reaching 8^th joint; 3^rd–8^th joints with natatory hairs and spines along proximal part of ventral margin. 9^th article: four bristles (two long natatory and two short bristles). Articles 1–8 with minute spines at inner terminal corner.

Md (Fig. 3d). Coxale endite ventral branch with spines forming four oblique rows. Basale endite with four spinous end bristles, three triaenid bristles with three or four pairs spines excluding terminal pair. Basale dorsal margin with two long terminal setae, without mid-bristle. Exopodite with hirsute tip and two small subterminal setae, exopodite almost same length as dorsal margin of first endopodite article. Endopodite: 1^st joint: ventral margin with three bristles (one broken with short spines, one long with long marginal spines, and one shorter without spine or hair); 2^nd joint: ventral margin: with three terminal bristles; dorsal margin: with stout a-, b-, c-, and d-bristles and one short bristle proximal to a-bristle; one long e-bristle and three medial bristles forming an oblique row between b- and c-bristles and adjacent to b-bristle; four medial bristles forming an oblique row adjacent to c-bristle; and one short bristle adjacent to d-bristle; f-bristle between c- and d-bristles, long, bare; g-bristle longer than f-bristle. End segment with a strong dorsal claw-like bristle without marginal spines, three juxtaposed stout bristles of equal length, and two thin bristles.

Mxl (Fig. 3e). Endite I with three bristles. Endite II with three bristles. Basale: one bare proximal ventral bristle at the middle and four short distal ventral bristles. Endopodite: 1^st article absent α-seta and one hairy β-seta; 2^nd article with two terminal bristles.

L5 (Fig. 3f). Ventral section with fan of long setae. Comb: spinous exopodite bristle over past distal end of comb, two short bristles (ventral to base of exopodite bristle) with bases almost on ventral edge of comb, four bristles just proximal at the ventral edge of comb, without bristle to base of exopodite bristle.

L6. Unknown

L7 (Fig. 3g). Each limb with 12 bristles. Six proximal and six distal bristles (three on each side).

F (Fig. 3h). Each lamella with six claws and three posterior claws bristle-like. A total of nine claws and bristles.

Male. All features are comparable to adult female; important differences are listed below.

Shell (Fig. 2g–i). Carapace more elongate than that of female and with more open incisure, hairs forming vertical row near posterior end, carapace length 1.36 mm, height at middle 0.9 mm.

A1 (Fig. 4a). Sensory seta with robust stem and many filaments. 7^th and 8^th joints with very long c- and f- setae (long as carapace length) each with numerous of marginal filaments. 2^nd and 4^th joints without dorsal margin spines.

Figure 4. 

Parasterope busanensis sp. nov. paratype male adult: a A1 b A2 c Md d Bellonci organ. Scale bar: 0.1 mm.

A2 (Fig. 4b). Endopodite with 3-jointed, article two with two lateral setae, article three recurved with 1 proximal seta.

Md (Fig. 4c). Basale dorsal margin with one seta at mid-length. Endopodite: two relatively long bristles proximal to a-bristle.

Eyes (Fig. 4d). Lateral eye with more than 17 ommatidia. Medial eye rounded and unpigmented.

Reproductive organs (Fig. 4f). Copulatory limbs are coalesced proximally, in generally, shorter than the furca lamella. The lobe is distally subdivided into three small lobes.

The new species is closely related to P. iota Kornicker, Harrison-Nelson & Coles, 2007, described from Kapua Channel (Waikïkï, Hawaii). The first joint of the A1 of P. busanensis is without hair on the broad surface, present in P. iota. In addition, the 3^rd–8^th joints of P. iota each have fairly stout proximal ventral spines, absent in P. busanensis. The distal margin of the Mxl of P. busanensis bears four bristles compared to two in P. iota, and three bristles (one minute) near the ventral margin rather than five in P. iota. The new species shares many characters with P. gamurru Syme & Poore, 2006 described from Queensland, Australia (Syme and Poore 2006a), but lacks the nodes on the dorsal margin of the 5^th joint on the A1, which is a prominent character of P. gamurru. The new species also bears two oblique rows of cleaning setae on the medial side of the Md 2^nd joint, compared to only one in P. gamurru. The endite II of P. busanensis differs from that of P. pacifica Kornicker and Harrison-Nelson, 2005 from Johnston Atoll (Kornicker and Harrison-Nelson 2005) in having three rather than four bristles. The 3^rd joint of the Md in P. theta Kornicker, Harrison-Nelson & Coles, 2007 from Waikïkï, Hawaii (Kornicker et al. 2007). The same character is present in P. sigma Kornicker, Harrison-Nelson & Coles, 2007 from Käneohe Bay, Hawaii (Kornicker et al. 2007), and P. zeta Kornicker, 1986 from the Gulf of Mexico (Kornicker 1986).

The sexual dimorphism found in the new species, the morphology of the dorsal mid-bristle on the basale of Md, and the number of bristles proximal to the a-bristle on the endopodite of the Md, have never been described in Parasterope.

GenBank numbers 16S: OK048681, OK048682; 18S: OK048719, OK048720.

Holotype female dissected on one slide, shells on SEM stub (NIBR IV0000890541). Paratypes: one male and one female dissected on separate slides, shells on SEM stub (NIBR IV0000890542). All from the type locality: Japan, Kanagawa, Sagami Bay (35°09.420'N, 139°36.556'E), 5 m, collected during 6^th JAMBIO project on 13 February 2015.

The species name was chosen after the Sagami Bay, from where the species was collected. It is an adjective agreeing with female gender of the genus.

Surface of the shell completely smooth. Posterior infold of the carapace with a broad shelf. Dorsal margin rounded in female and almost perpendicular in male. Lateral eye well developed with black pigmented ommatidia, smaller in female than in male. A1 8-segmented without d-bristle on the 8^th joint. Uropodal lamellae with eight claws.

Female. Shell (Fig. 5a–c). Carapace oval, broadening at posterior, greatest height near middle, carapace length 1.21 mm, height 0.83 mm. Carapace smooth and without ornamentation.

Figure 5. 

Light microscopy and scanning electron microscopy images of Parasterope sagami sp. nov. a–c holotype female adult: a External view b Lateral view from right valve c Internal view from left valve. d–f paratype male adult: d External view e Lateral view from right valve f Internal view of left valve.

A1 (Fig. 6a). 1^st joint: with no hair on broad surface. 2^nd joint: one spinous dorsal seta, no lateral bristle, and two dorsal spines on each side of dorsal margin. 3^rd joint: seven setae: one short ventral and six dorsal. 4^th joint: three setae (one long dorsal bristle and two short ventral bristle) and two small ventral spines. 5^th joint: sensory bristle with six filaments without short proximal terminal. 6^th joint: unidentified. 7^th joint: a-bristle claw-like, bare; b-seta with marginal filaments; c-seta with marginal filaments. 8^th joint: d-bristle absent; e-bristle bare, with blunt tip; f- bristle with marginal filaments; g-bristle with three filaments without proximal and marginal filament.

Figure 6. 

Parasterope sagami sp. nov. holotype female adult: a A1 b A2 c Md. Scale bar: 0.1 mm.

Bellonci orange (Fig. 7a). Elongate with rounded tip, unclear constriction.

Eyes (Fig. 7a). Lateral eye with 12 ommatidia obscured by black pigment; Medial eye rounded and pigmented.

Figure 7. 

Parasterope sagami sp. nov. holotype male adult: a Bellonci organ e Mxl f L5 g L6 h L7 i F. Paratype male adult: b A1 c A2 endopodite d Md. Scale bar: 0.1 mm.

A2 (Fig. 6b). Protopodite: rounded without medial bristle. Endopodite: 3-jointed with long terminal bristle near junction between 2^nd and 3^rd join. Exopodite: 9-jointed; bristle of 2^nd segment along ventral margin and spines along dorsal margin reaching 8^th joint; 3^rd–8^th joints with natatory hairs and spines along proximal part of ventral margin. 9^th article: four bristles (two long natatory and two short bristles). 1^st–8^th with minute spines at inner terminal corner.

Md (Fig. 6c). Coxale endite: unable to determine. Basale endite with four spinous end bristles, three triaenid bristles with three pairs spines excluding terminal pair. Basale dorsal margin with three long terminal setae, without mid-bristle. Exopodite with hirsute tip and two small subterminal setae, exopodite length ~ ¾ of dorsal margin of first endopodite article. Endopodite: 1^st joint: ventral margin with three bristles (one missing, one long with long marginal spines, and one shorter without spine or hair); 2^nd joint: ventral margin: with three terminal bristles; dorsal margin: with stout a-, b-, c-, and d-bristles and one short bristle proximal to a-bristle; e-bristle missing, two medial bristles adjacent to b-bristle; three medial bristles forming an oblique row adjacent to c-bristle; f-bristle between c- and d-bristle, long, bare; g-bristle shorter than f-bristle. End segment with a strong dorsal claw-like bristle without marginal spines, three juxtaposed stout bristles of equal length.

Mxl (Fig. 7e). Endite I with three bristles. Endite II with four bristles. Basale: one dorsal medial distal bristle, two ventral medial proximal bristles. Endopodite: 1^st with one short α-seta and one hairy β-seta; 2^nd article with two terminal bristles.

L5 (Fig. 7f). Ventral section with fan of long setae. Comb: spinous exopodite bristle over past distal end of comb, one bristle just proximal at the ventral edge of comb.

L6 (Fig. 7g). Anterior margin with one endite bristle. Ventral margin with two spinous anterior bristles separated by space from 13 bristles. Anterior, ventral, and posterior margins, and medial surfaces hirsute. Lateral flap spinous but without bristles.

L7 (Fig. 7h). Each limb with 12 bristles. Six proximal and six distal bristles (three on each side).

F (Fig. 7i). Each lamella with five claws and three posterior claws bristle-like. A total of eight claws and bristles.

Male. All features comparable to adult female; important differences are:

Shell (Fig. 5d–f). Carapace more elongate than that of female and, carapace length 1.65 mm, height at middle 1.02 mm.

A1 (Fig. 7b). Sensory seta with robust stem and many filaments. 7^th and 8^th joints with very long c- and f-setae (long as carapace length) each with numerous of marginal filaments. 2^nd joint with lateral bristle. 2^nd and 4^th joints without dorsal margin spines.

Eyes. Lateral eye with 18 ommatidia obscured by black pigment.

A2 (Fig. 7c). Endopodite with three articles, article two with two lateral setae, article three recurved with one small proximal seta.

Md (Fig. 7d). Basale dorsal margin with two long terminal setae. Endopodite: 2^nd joint: dorsal margin: with stout a-, b-bristles, c-and d-claws bristle-like, and two short bristles proximal to a-bristle; e-bristle present on male. Two oblique rows between b- and c-bristles (a row adjacent to b-bristle with four bristles, a row adjacent to c-claw bristle-like with six bristles).

Reproductive organs. Unknown.

Parasterope sagami differs from all other Parasterope representatives by the combination of the following characters:

Female. Dorsal margin of the Md basale has three long terminal setae next to the exopodite, and it has no mid-bristle. In addition, the A1 g-bristle has a peculiar shape, and there is no lateral bristle on the A1 2^nd joint;

Male. The presence of the c- and d-claws bristle-like on the Md endopodite 2^nd joint in the adult males is unique for the new species.

In addition to the above characters, P. sagami differs from P. busanensis and the morphology of the endite II of Mxl. Namely, the endite carries three rather than four bristles. Also, the short α-seta on the Mxl exopodite is absent in P. busanensis.

Parasterope jenseni was also described from Sagami Sea, Japan (Poulsen 1965) and it also has no lateral bristle on the A1 2^nd joint. It differs from P. sagami by having small lateral eyes with ~ 10 ommatidia; a long stem of the sensory bristle (~ 4 × the length of the 6^th joint); and the presence of spines on the ventral margin of the protopodite of A2 (Poulsen 1965).

Parasterope obesa Poulsen, 1965 from Misaki, Japan has a lateral bristle on the 2^nd joint of A1 which is absent in the two above species; 4^th joint of the A1 is without lateral spines on the ventral margin otherwise present in the new species; and there are more than ten bristles on the ventral edge of the comb.

GenBank numbers 16S: OK048683, OK048684; 18S: OK048721, OK048722.

Holotype female dissected on one slide, shells on SEM stub (NIBR IV 0000887835). Paratypes: two females dissected on one slide each, shells on SEM stub (NIBR IV 0000879835_2&3). The sample was collected from the type locality: South Korea, Chuja Island by Ho Young Soh on 29 November 2012.

The name is a Latin noun, singula, because only a female has been collected. The name is in nominative, feminine singular, agreeing in gender with the genus.

Surface of the shell completely smooth. Anterior end with a deep incisure and posterior infold of the carapace with a broad shelf. Posterior end wider than anterior. Dorsal margin rounded. Lateral eye well developed with black pigmented ommatidia. Uropodal lamellae with nine claws.

Female. Shell (Fig. 8). Carapace oval, broadening at posterior, greatest height near middle, carapace length 1.25 mm, height 0.9 mm. Carapace smooth and without ornamentation.

Figure 8. 

Light microscopy and scanning electron microscopy images of Parasterope singula sp. nov. holotype female adult: a Lateral view from left valve b Internal view from left valve c External view.

A1 (Fig. 8a). 1^st joint: with no hair on broad surface. 2^nd joint: one spinous dorsal seta, one short lateral bristle, and small proximal dorsal spines. 3^rd joint: seven setae (one short ventral and six dorsal). 4^th joint: three bristles (one long dorsal bristle and two short ventral bristles). 5^th joint: sensory bristle with six filaments without short proximal terminal. 6^th joint: one medial seta, attached to bottom of 7^th joint boundary. 7^th joint: a-bristle claw-like, bare; b-seta with marginal filaments; c-seta with marginal filaments. 8^th joint: d-bristle absent; e-bristle bare with blunt tip; f- and g-bristles with marginal filaments.

Bellonci orange (Fig. 9b). Elongate with rounded tip with unclear constriction.

Eyes. Lateral eye with 18 ommatidia.

A2 (Fig. 9c, d). Protopodite: rounded without medial bristle. Endopodite (Fig. 9c): not strongly jointed, with long terminal bristle. Exopodite (Fig. 9d): 9-jointed; bristle of 2^nd segment along ventral margin and spines along dorsal margin reaching 8^th joint; 3^rd–8^th joints with natatory hairs and spines along proximal part of ventral margin. 9^th article: four bristles (two long natatory and two short bristles). 4^th–8^th joints with minute spines at inner terminal corner.

Figure 9. 

Parasterope singula sp. nov. holotype female adult: a A1 b bellonci organ c A2 endopodite d A2 exopodite e Md basale and coxale endite f Md basale endite g Md endopodite h L5 i L6 k L7 l F. Scale bar: 0.1 mm.

Md (Fig. 9e–g). Coxale endite (Fig. 9e) same as that on P. busanensis. Basale (Fig. 9f): Basale endite with three spinous end bristles, four triaenid bristles with three spines excluding terminal pair, and two equal-length bare bristles. Basale dorsal margin with two long terminal setae, without mid-bristle; five rows of small spines on the broad surface near dorsal margin. Exopodite with hirsute tip and two small subterminal setae, exopodite almost same length as dorsal margin of first endopodite article. Endopodite (Fig. 9g): 1^st joint: ventral margin with three bristles (two long with long marginal spines, and one shorter without spine or hair); 2^nd joint: ventral margin: with three terminal bristles; dorsal margin: with stout a-, b-, c-, and d-bristles and without bristle proximal to a-bristle; one long e-bristle between b- and c-bristles; four medial bristles forming an oblique row adjacent to c-bristle; f-bristle between c- and d-bristles, long, bare; g-bristle longer than f-bristle. 3^rd segment with a strong dorsal claw-like bristle without marginal spines, three juxtaposed stout bristles of equal length, and two thin bristles.

Mxl. Endite I with three bristles. Endite II with three bristles. Basale: one dorsal medial distal bristle, two ventral medial proximal bristles. Endopodite: 1^st with one short α-seta and one hairy β-seta; 2^nd article with two terminal bristles.

L5 (Fig. 9h). Ventral section with fan of long setae. Comb with spinous exopodal bristle just reaching past distal end of comb, one short slender bristle just ventral to base of stout bristle, one bristle near exopodal bristle stem, and four lateral bristles set back from edge at comb mid length.

L6 (Fig. 9i). Unidentified number of endite bristle on the anterior margin. Lateral flap with hairs but no bristles. Anterior tip of skirt with two small bristles. Ventral and postero-ventral margin with 17 plumose bristles (one missing).

L7 (Fig. 9k). Each limb with ten bristles. Four proximal and six distal bristles.

F (Fig. 9l). Each lamella with six claws plus three posterior claws bristle-like. A total of nine claws and bristles.

Male. Not collected.

The presence of rows of small spines on the broad surface near the dorsal margin of the Md basale is a unique feature of Parasterope singula. Additionally, the number of bristles on the L7 (ten bristles: four on the terminal segment (two on each side), six on the proximal segments (three on each side) is less than in all other Parasterope representatives. The new species is similar to P. mckenziei, described from Samar Province, Philippines (McKenzie, 1970) but differs in the following characters: the Md endopodite is without a proximal bristle next to the a-bristle, a character not known in any other Parasterope, and the number of claws on UL (nine vs. seven).

The 2^nd joint of the Md endopodite in P. singula carries one oblique row of cleaning setae, also recorded in P. antyx Kornicker, 1989 from Bay of Biscay (Kornicker, 1989), P. gamma Kornicker, Harrison-Nelson & Coles, 2007 from Hawaiian Islands (Kornicker et al. 2007), P. hulingsi Baker, 1978 from California (Baker 1978), P. jenseni from Sagami Sea, Japan (Poulsen 1965), P. lagunicola Hartmann, 1984 from French Polynesia (Hartmann 1984), P. mckenziei from the Philippines (Kornicker 1970), P. muelleri Skogsberg, 1920 from England (Poulsen 1965), P. prolixa Kornicker, 1975 from Australia (Kornicker 1975), P. sequex Kornicker & Poore, 1996 from Australia (Kornicker and Poore 1996), P. styx from Chile (Kornicker 1975), and P. theta from Waikïkï (Kornicker et al. 2007). The three other new species, P. busanensis, P. sagami, and P. sohi also have two oblique rows. The exopodite of the A2 in P. singula and P. sohi carries minute spines at inner terminal corner on the 5^th–8^th joints, while these spines are present from the 1^st–8^th joints in P. busanensis and P. sagami.

GenBank numbers 16S: OK048686, OK048687; 18S OK048723.

Holotype female dissected on one slide, shells on SEM stub (NIBR IV 0000887834). The sample was collected from the type locality: South Korea, Maemul Island, 34°32'00.4"N, 128°43'54.4"E, by Ho Young Soh on 25^th July 2011.

The species named after Prof. Ho-young Soh (Faculty of Marin Technology, Chonam National University, Jeonnam, Korea), whom we are greatly indebted to for collecting and providing samples for this publication.

Carapace elongated. Surface of the shell completely smooth. Posterior end with a short, rounded incisure, while the anterior has relatively deep incisure. Dorsal and ventral margins rounded. Posterior end wider than anterior. Lateral eye well developed with black pigmented ommatidia.

Female. Shell (Fig. 10). Carapace oval, broadening at posterior, greatest height near middle, carapace length 1.48 mm, height 0.98 mm. Carapace smooth and without ornamentation.

Figure 10. 

Light microscopy and scanning electron microscopy images of Parasterope sohi sp. nov. holotype female adult: a External view b Lateral view from left valve c Anterior of left valve from inside showing bristles of infold.

A1 (Fig. 11a). 1^st joint: with no hair on broad surface and longer than 2^nd joint. 2^nd joint without spines along dorsal or ventral margin, one spinous dorsal seta, one short lateral bristle. 3^rd joint: seven setae (one short ventral and six dorsal). 4^th joint: three bristles (one long dorsal and two short ventral bristles). 5^th joint: sensory bristle with six filaments without short proximal terminal. 6^th joint: one medial seta, attached to bottom of 7^th joint boundary. 7^th joint: a-bristle claw-like, bare; b-seta with marginal filaments; c-seta with marginal filaments. 8^th joint: d-bristle absent; e-bristle bare, with blunt tip; f- and g-bristles with marginal filaments.

Figure 11. 

Parasterope sohi sp. nov. holotype female adult: a A1 b bellonci organe c A2 endopodite d A2 exopodite e Md basale endite f Md endopodite. Scale bar: 0.1 mm.

Bellonci orange (Fig. 11b). Elongate with rounded tip with unclear constriction.

Eyes. Lateral eye with 15 ommatidia.

A2 (Fig. 11c, d). Protopodite: rounded. Endopodite (Fig. 11c): 2-jointed, with long terminal bristle, ~ 1/3 of stem length. Exopodite (Fig. 11d): 9-jointed; bristle of 2^nd segment along ventral margin and spines along dorsal margin reaching 8^th joint; 3^th–8^th joints with natatory hairs and spines along proximal part of ventral margin. 9^th article: four bristles (two long natatory and two short bristles). 5^th–8^th joints with minute spines at inner terminal corner.

Md (Fig. 11e, f). Coxale endite same as that on P. busanensis and P. singula. Basal endite (Fig. 11e) with six spinous end bristles and one triaenid bristle with three spines excluding terminal pair. Basale dorsal margin with two long terminal setae, without mid-bristle. Exopodite with spine-like tip and small subterminal setae, exopodite just reaching past end of dorsal margin of the 1^st endopodite article. Endopodite (Fig. 11f): 1^st joint: ventral margin with three long bristles with long marginal spines; 2^nd joint: ventral margin: with three terminal bristles; dorsal margin: with stout a-, b-, c-, and d-bristles and with one short bristle proximal to a-bristle (missing on drawing line figure); one long e-bristle between b- and c-bristles; four medial cleaning bristles forming an oblique adjacent to b-bristle; five medial bristles forming an oblique row adjacent to c-bristle; f-bristle between c- and d-bristles, long, bare; g-bristle longer than f-bristle. 3^rd segment with a strong dorsal claw-like bristle without marginal spines, three juxtaposed stout bristles of equal length, and two thin bristles.

Mxl. Endite unknown. Basale: one dorsal medial distal bristle. Endopodite: 1^st with one short α-seta and one hairy β-seta; 2^nd article with two terminal bristles.

L5. Unknown.

L6. Unknown.

L7. Unknown.

F. Unknown.

Male. Not collected.

The new species Parasterope sohi sp. nov. is poorly known because of the missing L5, L6, L7, and furca but we propose a new name because of the presence of the combination of the following characters: A1 sensory bristle carry 0+6 filaments; exopodite of Md is unusually long; and the Md endopodite has the e-bristle. In majority of Parasterope described so far, the mandible exopodite is at most longer than ½ length of the dorsal margin of the 1^st endopodite joint; in P. sohi the exopodite length is greater than the length of the dorsal margin of the 1^st endopodite joint. Other species with such a long exopodite include P. lagunicola from French Polynesia (Hartmann 1984), P. omega Kornicker, Harrison-Nelson & Coles, 2007 from Hawaiian Islands (Kornicker, Harrison-Nelson and Coles 2007), and P. sohni Kornicker & Caraion, 1974 from West Africa (Kornicker and Caraion 1974). However, the first two species have small proximal spines on A1, absent in P. sohi. The last species has a mid-bristle on the dorsal margin of the basale, absent in P. sohi. Also, P. sohi differs from another Parasterope species by having six spinous end bristles and one triaenid bristle on the endite of the Md basale. All other Parasterope species are armed with at least four triaenid bristles.

GenBank number 16S: OK048685. 18S could not be obtained.