Latest Articles from ZooKeys Latest 3 Articles from ZooKeys https://zookeys.pensoft.net/ Thu, 28 Mar 2024 17:29:40 +0200 Pensoft FeedCreator https://zookeys.pensoft.net/i/logo.jpg Latest Articles from ZooKeys https://zookeys.pensoft.net/ Revision of the carnivorous land snail family Streptaxidae (Stylommatophora, Achatinina) in Myanmar, with description of four new species https://zookeys.pensoft.net/article/85399/ ZooKeys 1110: 39-102

DOI: 10.3897/zookeys.1110.85399

Authors: Nem Sian Man, Thanit Siriboon, Aung Lin, Chirasak Sutcharit, Somsak Panha

Abstract: The carnivorous terrestrial snail family Streptaxidae, recognized by having a regular to eccentric shell with complex apertural dentition, remains little-known and largely unexplored in Myanmar. This article presents historically recorded species and provides new data on this family. A total of eighteen species in five genera, namely Carinartemis, Discartemon, Haploptychius, Oophana, and Perrottetia from the southeastern and eastern parts of Myanmar, is examined herein. Among these, Haploptychius is the most diverse with eight species, while the remaining genera are comprised of fewer than five species each. Streptaxis birmanica and Streptaxis blanfordianus are herein synonymized with Haploptychius blanfordi, while Streptaxis hanleyanus is synonymized with Carinartemis sankeyi. Furthermore, the first genitalia and radula descriptions for three previously known species, D. tonywhitteni, C. exacutus, and C. sankeyi, are provided. Using comparative morphological and anatomical approaches, four new species are described: D. paurodeviatus sp. nov., H. heliakosus sp. nov., H. tenasserimicus sp. nov., and H. karenorum sp. nov. This present study enhances the understanding of the land snail fauna in Myanmar, specifically the streptaxids, and highlights that limestone areas are important for biodiversity conservation.

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Research Article Mon, 4 Jul 2022 11:15:12 +0300
A new Nigerian hunter snail species related to Ennea serrata d’Ailly, 1896 (Gastropoda, Pulmonata, Streptaxidae) with notes on the West African species attributed to Parennea Pilsbry, 1919 https://zookeys.pensoft.net/article/33878/ ZooKeys 840: 21-34

DOI: 10.3897/zookeys.840.33878

Authors: A.J. de Winter, Werner de Gier

Abstract: Ennea nigeriensis sp. n. is described from southeastern Nigeria on the basis of external and internal shell morphology. Following Pilsbry’s formal criteria of a single palatal fold and corresponding external furrow, the new species may be assigned to Parennea. Ennea nigeriensis sp. n. exhibits substantial similarity with E. serrata, a species from Cameroon, in the cylindrical shell shape, crenulate suture, and internal shell morphology, indicating that the two species are closely related. CT scanning confirmed the presence of only a single palatal fold in E. nigeriensis sp. n. and two in E. serrata. In spite of this, the Nigerian species is provisionally assigned to Ennea rather than Parennea, suggesting that the characters used to define Ennea and Parennea are insufficient to delimit natural groups of species. The holotype of E. serrata is examined for the first time since its description in 1896 and a redescription of the species is provided based on the two shells hitherto known. Study of the original specimens recorded as Ptychotrema (Parennea) sulciferum by Degner from Liberia reveals these to belong to Ennea cf. thompsonae. The Nigerian shell recorded by van Bruggen as Ptychotrema (Parennea) aequatoriale proved to be a specimen of Ennea cf. perforata. As a result, no species attributable to Parennea now appear to be known in West Africa; in contrast, numerous species are known from central and eastern Africa.

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Research Article Wed, 17 Apr 2019 21:35:57 +0300
The first revision of the carnivorous land snail family Streptaxidae in Laos, with description of three new species (Pulmonata, Stylommatophora, Streptaxidae) https://zookeys.pensoft.net/article/7933/ ZooKeys 589: 23-53

DOI: 10.3897/zookeys.589.7933

Authors: Khamla Inkhavilay, Thanit Siriboon, Chirasak Sutcharit, Ben Rowson, Somsak Panha

Abstract: The family Streptaxidae in Laos is revised. Twelve species are known, mainly from limestone areas, in the genera Discartemon Pfeiffer, 1856, Perrottetia Kobelt, 1905, Haploptychius Möllendorff, 1906, and Indoartemon Forcart, 1946. Three new species, P. unidentata sp. n. and P. megadentata sp. n. from northern and central Laos, and I. diodonta sp. n. from central Laos, are described. All eight species of these three genera previously recorded from Laos are revised and discussed based on examined material from Laos, Cambodia, Vietnam and Thailand. Type material was examined and lectotypes are designated. Details of genital anatomy and radulae are provided, including the first detailed genitalia and radula descriptions from Haploptychius. Two novelties in Streptaxidae, a vaginal caecum, and the occurrence of aphallic individuals, are reported from H. pellucens (Pfeiffer, 1863).

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Research Article Mon, 16 May 2016 21:01:20 +0300