Trypauchen Valenciennes in Cuvier & Valenciennes

Edward O. Murdy, 2006, A revision of the gobiid fish genus Trypauchen (Gobiidae: Amblyopinae)., Zootaxa 1343, pp. 55-68 : 55-56

publication ID

z01343p055

publication LSID

lsid:zoobank.org:pub:A2589DD6-BC0D-43DA-BFEA-A1E6BF042605

DOI

https://doi.org/10.5281/zenodo.6492150

persistent identifier

https://treatment.plazi.org/id/93827F5F-50AB-52A7-7BF3-B5158E205563

treatment provided by

Thomas

scientific name

Trypauchen Valenciennes in Cuvier & Valenciennes
status

 

[[ Trypauchen Valenciennes in Cuvier & Valenciennes View in CoL View at ENA   ZBK ]]

Introduction

Gobius vagina   ZBK was described by Bloch and Schneider (1801) from a single specimen collected in Tranquebar, India. The original description was brief, but stated that an ovalshaped opening was present on the dorsal edge of the operculum. Because of this unusual, pouch-like structure at the dorsal margin of the operculum, Valenciennes in Cuvier and Valenciennes (1837) erected the genus Trypauchen   ZBK [from the Greek trypa (hole) and auchen (neck)] for Gobius vagina   ZBK . The function of the opercular pouch is not known, but this structure is only found in the following genera of Amblyopinae: Amblyotrypauchen   ZBK , Ctenotrypauchen   ZBK , Trypauchen   ZBK , and Trypauchenichthys   ZBK .

Trypauchen vagina is locally abundant in certain regions and is even used as a food source (Rainboth, 1996), but it has been little studied. However, records and brief descriptions of T. vagina are numerous: India (Day, 1878; Hora, 1924); Thailand (Fowler, 1935; H.M. Smith, 1945); Singapore (Larson and Lim, 2005); Mekong River (Rainboth, 1996); various parts of Indonesia (Bleeker, 1860; Kottelat et al., 1993); China (Richardson, 1844; Günther, 1861; Rendahl, 1924; Herre, 1927); and Taiwan (Chen and Fang, 1999).

In addition to T. vagina , four other species were described and assigned to Trypauchen   ZBK : T. microcephalus Bleeker, 1860   ZBK ; T. raha Popta, 1922   ZBK ; T. taenia Koumans, 1953   ZBK ; and T. wakae Jordan & Snyder, 1901   ZBK . All were described from Indonesian specimens, except for T. wakae   ZBK , which was described from Japan.

In his major work on the gobioid fishes of the Indo-Australian Archipelago, Koumans (1953) provided the only systematic review of Trypauchen   ZBK to date. Koumans (1953) included T. raha   ZBK , T. taenia   ZBK , and T. vagina in his treatment of Trypauchen   ZBK . Trypauchen wakae   ZBK was likely excluded because it was only known from Japan and T. microcephalus   ZBK was placed in Ctenotrypauchen   ZBK by Koumans. Koumans (1953) separated the three species of Trypauchen   ZBK by numbers of longitudinal and transverse scale rows. However, based on examination of the types and/or images of the types, differences in pelvic fin structure, scalation, and osteology between T. vagina and its putative congeners are evident. Consequently, I propose herein a new diagnosis for Trypauchen   ZBK and that Trypauchen   ZBK comprises only two species: T. vagina and an undescribed species from Myanmar, Malaysia, Thailand, Vietnam, and China.

Kingdom

Animalia

Phylum

Chordata

Order

Perciformes

Family

Gobiidae

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