Research Article |
Corresponding author: Ghasem M. Kashani ( gmkashani@gmail.com ) Academic editor: Stefano Taiti
© 2016 Ghasem M. Kashani.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Kashani GM (2016) Iranian terrestrial isopods of the family Cylisticidae Verhoeff, 1949 with a description of a new species (Isopoda, Oniscidea). ZooKeys 582: 157-165. https://doi.org/10.3897/zookeys.582.7199
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In the present study, the terrestrial isopods of the family Cylisticidae in Iran are investigated. Geographical distributions of two formerly reported species from Iran, namely Cylisticoides angulatus Schmalfuss, 2003 and C. rotundifrons (Schmalfuss, 1986), are expanded. Cylisticus masalicus sp. n. is described and its diagnostic characters are figured.
Oniscidea , Cylisticidae , Cylisticus , Cylisticoides , new species, Iran
Members of Cylisticidae are characterized by: strongly convex body; exoantennal conglobation ability, though the head and telson are poorly adapted to conglobation; pereon tergite I without modifications or with grooves to receive the antennae; head with developed lateral and median lobes; supra-antennal line absent; antenna long; flagellum with two articles; pleopod exopodites I-V with wrinkled, partly covered, “Trachelipus-type”, or with internal, covered, “Porcellio-type” lungs (
Cylisticidae species are distributed from central Europe to central Asia. According to the world catalogue of terrestrial isopods (
In the present study, new records for Cylisticoides angulatus and C. rotundifrons in Iran are presented and Cylisticus masalicus sp. n. is described.
The material examined herein was collected in Iran (Fig.
Cylisticus rotundifrons Schmalfuss, 1986: p. 394;
Amol to Chamestan, Belvich village, 36°28.3'N, 52°10.0'E, elev. 60 m, 29 July 2014, leg. G.M. Kashani, two females (PCGMK 1960); Neka to Behshahr, Pasandrez forests, 36°40.0'N, 53°36.7'E, elev. 300 m, 31 July 2014, leg. G.M. Kashani, one female (PCGMK 1998).
N Iran.
Gorgan, Naharkhoran district, 36°46.8'N, 54°27.8'E, elev. 430 m, 1 August 2014, leg. G.M. Kashani, eight males, eight females and four juv. (PCGMK 2010); 15 km S Jalin, 36°42.5'N, 54°35.3'E, elev. 900 m, 1 August 2014, leg. G.M. Kashani, one male, three females and seven juv. (PCGMK 2016); Ramian to Shahrood, 36°52.1'N, 55°13.4'E, elev. 1375 m, 2 August 2014, leg. G.M. Kashani, one male, three (PCGMK 2021); Poonel to Sangdeh, 37°32.0'N, 48°56.7'E, elev. 420 m, 14 August 2014, leg. G.M. Kashani, five females and three juv. (PCGMK 1800); Poonel to Sangdeh, 3 km to Zendaneh, 37°32.2'N, 48°45.1'E, elev. 1500 m, 14 August 2014, leg. G.M. Kashani, three males, four females and two juv.. (PCGMK 1801); Fooman, Ghaleh Roodkhan, 37°04.5'N, 49°14.9'E, elev. 330 m, 15 August 2014, leg. G.M. Kashani, six males, two females and thirteen juv. (PCGMK 1807); Shaft, Siahmazgi, 37°01.3'N, 49°16.4'E, elev. 400 m, 14 August 2014, leg. G.M. Kashani, four males, four females (PCGMK 1810); Someh-Sara, 37°17.7'N, 49°18.6'E, elev. 15 m, 16 August 2014, leg. G.M. Kashani, five males, two females and three juv. (PCGMK 1821); Fooman to Roodbar, 37°10.8'N, 49°33.4'E, elev. 50 m, 17 August 2014, leg. G.M. Kashani, one female (PCGMK 1822); Saravan, 37°07.8'N, 49°38.9'E, elev. 60 m, 17 August 2014, leg. G.M. Kashani, six males and one juv. (PCGMK 1823); Kiashahr port, 37°25.6'N, 49°57.6'E, 18 August 2014, leg. G.M. Kashani, one female (PCGMK 1837); Siahkal to Deylaman, Loonak village, 37°03.4'N, 49°53.7'E, 19 August 2014, leg. G.M. Kashani, one female and three juv. (PCGMK 1842); Klardasht to Abbasabad, 36°37.5'N, 51°06.4'E, elev. 400 m, 12 September 2014, leg. G.M. Kashani, one subadult (PCGMK 1878); Tonekabon, Darbar village, 36°39.4'N, 50°47.7'E, elev. 500 m, 13 September 2014, leg. G.M. Kashani, two males and eight females (PCGMK 1885); Ramsar to Javaherdeh, 36°54.6'N, 50°36.7'E, elev. 170 m, 14 September 2014, leg. G.M. Kashani, one female (PCGMK 1891); Ramsar to Javaherdeh, 36°52.6'N, 50°33.4'E, elev. 730 m, 14 September 2014, leg. G.M. Kashani, four males, one female and eighteen juv. (PCGMK 1896); Masooleh, 19 July 2004, leg. G.M. Kashani, two females (PCGMK 1174); Galikesh to Bojnurd, Golestan National Park, 37°23.0'N, 55°50.7'E, 6 May 2008, leg. G.M. Kashani, two females (PCGMK 1180); 6 km S Shirgah, 36°15.9'N, 52°53.9'E, elev. 210 m, 8 June 2015, leg. G.M. Kashani, two females (PCGMK 2088); Shirgah, 36°16.9'N, 52°53.2'E, elev. 240 m, 8 June 2015, leg. G.M. Kashani, three males and six females (PCGMK 2090); Amol to Chamestan, Belvich village, 36°28.3'N, 52°10.0'E, elev. 60 m, 4 September 2015, leg. G.M. Kashani, twelve males and eighteen females (PCGMK 2102); 17 km S Amol, 36°16.3'N, 52°22.0'E, elev. 500 m, 4 September 2015, leg. G.M. Kashani, five males and four females (PCGMK 2104).
SE Azerbaijan; N Iran.
In the present study, C. angulatus was collected at a broad range of localities in northern Iran (Fig.
Holotype: male, 11 mm, IRAN, Gilan, Masal, 37°19.0'N, 48°59.0'E, elev. 600 m, 19 March 2014, leg. G.M. Kashani (ZUTC 5786).
Paratypes: same data as holotype, one male and two females (ZUTC 5787); same data as holotype, one male and one female (IRIPP Iso-1063); same data as holotype, three males and four females (PCGMK 1749); Gachsar to Marzanabad, 5 km to Dozdband, 36°16.2'N, 51°14.6'E, 26 July 2014, leg. G.M. Kashani, one female (PCGMK 1921); Noor to Kojour, 36°26.2'N, 51°53.3'E, elev. 790 m, 28 July 2014, leg. G.M. Kashani, one female (PCGMK 1942); Noor to Kojour, Kodir village, 36°26.4'N, 51°51.6'E, elev. 1435 m, 28 July 2014, leg. G.M. Kashani, one female and one juv. (PCGMK 1946); Kojour to Galandrood, 36°26.7'N, 51°50.7'E, elev. 1480 m, 28 July 2014, leg. G.M. Kashani, one male (PCGMK 1952); Poonel to Sangdeh, 37°33.4'N, 48°41.5'E, elev. 2200 m, 14 August 2014, leg. G.M. Kashani, one male and one female (IRIPP Iso-1062); Poonel to Sangdeh, 37°33.4'N, 48°41.5'E, elev. 2200 m, 14 August 2014, leg. G.M. Kashani, four males, five females and one juv. (PCGMK 1803); 29 km to Asalem, 37°37.5'N, 48°48.6'E, elev. 2220 m, 14 August 2014, leg. G.M. Kashani, four females (PCGMK 1804); 10 km to Shaft, 37°06.2'N, 49°23.8'E, elev. 80 m, 15 August 2014, leg. G.M. Kashani, one female (PCGMK 1813); Siahkal to Deylaman, 10 km to Deylaman, 36°56.2'N, 49°51.8'E, elev. 1500 m, 19 August 2014, leg. G.M. Kashani, one male (PCGMK 1845); Boomehen to Amol, Ploor village, 35°50.9'N, 52°03.2'E, elev. 2200 m, 11 September 2014, leg. G.M. Kashani, two females (PCGMK 1846); Tonekabon, Darbar village, 36°42.7'N, 50°50.7'E, elev. 220 m, 13 September 2014, leg. G.M. Kashani, three females and two males (PCGMK 1882); Galesh-Mahalleh to Jannat-Roodbar, 36°49.3'N, 50°41.3'E, elev. 370 m, 13 September 2014, leg. G.M. Kashani, one female (PCGMK 1888); Ramsar to Javaherdeh, 36°52.5'N, 50°33.3'E, elev. 770 m, 14 September 2014, leg. G.M. Kashani, one male and one female (PCGMK 1893); Amlash, Khorma village, 37°04.5'N, 49°58.9'E, elev. 270 m, 14 September 2014, leg. G.M. Kashani, one male (PCGMK 1902); Rahim-Abad to Ziaz, 36°56.5'N, 50°16.5'E, elev. 220 m, 15 September 2014, leg. G.M. Kashani, two males and one female (PCGMK 1912).
Cephalon with well developed quadrangular lateral lobes; median process pointed upwards; male pereopod VII ischium subrectangular; male pleopod endopodite I with apical part slightly bent outwards, bearing some setae.
Maximum length of both male and female, 15 mm. Color slaty gray with the usual pale muscle spots (Fig.
Cylisticus masalicus sp. n., male, paratype. A cephalon dorsal view B cephalon frontal view C left side of the body showing the position of noduli laterales D antenna E telson and uropods F pereopod I and enlarged carpus and dactylus G pereopod VI and enlarged basis H pereopod VII and enlarged ischium. Scale: 1 mm (A–C); 0.5 mm (D–H).
Pereon smooth. Pereonite I with angular concavity on posterolateral margin. Noduli laterales on pereonite IV more than twice distant from the lateral margins than those on pereonite III (Fig.
Pereopod I ischium triangular, carpus with depression on rostral surface equipped with slender scales, dactylus with one dactylar and one ungual seta (Fig.
Pleon as broad as pereon (Fig.
Male: Pereopods I–VII merus and carpus with brushes of trifid setae, less dense in posterior ones (Fig.
The name of the species is after the type locality, the rain forests around Masal.
N Iran.
In the examination of a collection of terrestrial isopods from northern Iran,
Cylisticus masalicus sp. n. differs from other species of the genus by the straight apex of the male pleopod endopodite I which is also common in Parcylisticus species. The new species, however, is well assignable to the genus Cylisticus for its smooth body surface and short uropod exopodites. This species is similar to C. birsteini Borutzky, 1961 and C. iners Budde-Lund, 1880 but differs from the former in the shape of the male pleopod endopodite I, and from the latter in the position of noduli laterales and the shape of telson.
I cordially thank Helmut Schmalfuss, Spyros Sfenthourakis and Stefano Taiti for their scientific comments, helpful suggestions and linguistic correction, resulting in the significant improvement of the manuscript. Reza Ghasemi and Sara Hamidnia are also thanked for their cooperation during field work. This study was supported by a grant from INSF (project no. 92010555).