A new species of Timorichthys (Ophidiiformes: Bythitidae) from the East China Sea

Jørgen Nielsen; Makoto Okamoto; Werner Schwarzhans

doi:10.1007/s10228-013-0341-3

A new species of Timorichthys (Ophidiiformes: Bythitidae) from the East China Sea

Jørgen Nielsen, Makoto Okamoto, Werner Schwarzhans

Abstract

A new bythitid fish, Timorichthys angustus, is described on the basis of a single specimen (52 mm in standard length, SL) collected from the East China Sea, Japan. The genus Timorichthys Nielsen and Schwarzhans 2011 was only known from the holotype of the type species Timorichthys disjunctus Nielsen and Schwarzhans 2011 caught in the Timor Sea. The new species differs from T. disjunctus in several characters, such as the pectoral fin peduncle being much longer than its width (vs. equal in T. disjunctus), precaudal vertebrae 22 (vs. 16), total vertebrae 62 (vs. 52), long rakers on the first gill arch 14 (vs. 6), horizontal eye diameter 3.1 % SL (vs. 1.3 % SL), interorbital width 0.8 % SL (vs. 3.3 % SL), posterior mandibular pore absent (vs. present), anterior infraorbital pores 1 (vs. 3), opercular spine not covered by skin (vs. covered by skin), otolith height to thickness 2.5 (vs. 1.8), and head and body light brown in alcohol (vs. dark brown).

Originalsprog	Engelsk
Tidsskrift	Ichthyological Research
Vol/bind	60
Udgave nummer	3
Sider (fra-til)	237-240
Antal sider	4
ISSN	1341-8998
DOI	https://doi.org/10.1007/s10228-013-0341-3
Status	Udgivet - jul. 2013

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title = "A new species of Timorichthys (Ophidiiformes: Bythitidae) from the East China Sea",

abstract = "A new bythitid fish, Timorichthys angustus, is described on the basis of a single specimen (52 mm in standard length, SL) collected from the East China Sea, Japan. The genus Timorichthys Nielsen and Schwarzhans 2011 was only known from the holotype of the type species Timorichthys disjunctus Nielsen and Schwarzhans 2011 caught in the Timor Sea. The new species differs from T. disjunctus in several characters, such as the pectoral fin peduncle being much longer than its width (vs. equal in T. disjunctus), precaudal vertebrae 22 (vs. 16), total vertebrae 62 (vs. 52), long rakers on the first gill arch 14 (vs. 6), horizontal eye diameter 3.1 % SL (vs. 1.3 % SL), interorbital width 0.8 % SL (vs. 3.3 % SL), posterior mandibular pore absent (vs. present), anterior infraorbital pores 1 (vs. 3), opercular spine not covered by skin (vs. covered by skin), otolith height to thickness 2.5 (vs. 1.8), and head and body light brown in alcohol (vs. dark brown).",

keywords = "Bythitinae, East China Sea, Japan, New species, Ophidiiformes, Timorichthys",

author = "J{\o}rgen Nielsen and Makoto Okamoto and Werner Schwarzhans",

year = "2013",

month = jul,

doi = "10.1007/s10228-013-0341-3",

language = "English",

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pages = "237--240",

journal = "Ichthyological Research",

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TY - JOUR

T1 - A new species of Timorichthys (Ophidiiformes: Bythitidae) from the East China Sea

AU - Nielsen, Jørgen

AU - Okamoto, Makoto

AU - Schwarzhans, Werner

PY - 2013/7

Y1 - 2013/7

N2 - A new bythitid fish, Timorichthys angustus, is described on the basis of a single specimen (52 mm in standard length, SL) collected from the East China Sea, Japan. The genus Timorichthys Nielsen and Schwarzhans 2011 was only known from the holotype of the type species Timorichthys disjunctus Nielsen and Schwarzhans 2011 caught in the Timor Sea. The new species differs from T. disjunctus in several characters, such as the pectoral fin peduncle being much longer than its width (vs. equal in T. disjunctus), precaudal vertebrae 22 (vs. 16), total vertebrae 62 (vs. 52), long rakers on the first gill arch 14 (vs. 6), horizontal eye diameter 3.1 % SL (vs. 1.3 % SL), interorbital width 0.8 % SL (vs. 3.3 % SL), posterior mandibular pore absent (vs. present), anterior infraorbital pores 1 (vs. 3), opercular spine not covered by skin (vs. covered by skin), otolith height to thickness 2.5 (vs. 1.8), and head and body light brown in alcohol (vs. dark brown).

AB - A new bythitid fish, Timorichthys angustus, is described on the basis of a single specimen (52 mm in standard length, SL) collected from the East China Sea, Japan. The genus Timorichthys Nielsen and Schwarzhans 2011 was only known from the holotype of the type species Timorichthys disjunctus Nielsen and Schwarzhans 2011 caught in the Timor Sea. The new species differs from T. disjunctus in several characters, such as the pectoral fin peduncle being much longer than its width (vs. equal in T. disjunctus), precaudal vertebrae 22 (vs. 16), total vertebrae 62 (vs. 52), long rakers on the first gill arch 14 (vs. 6), horizontal eye diameter 3.1 % SL (vs. 1.3 % SL), interorbital width 0.8 % SL (vs. 3.3 % SL), posterior mandibular pore absent (vs. present), anterior infraorbital pores 1 (vs. 3), opercular spine not covered by skin (vs. covered by skin), otolith height to thickness 2.5 (vs. 1.8), and head and body light brown in alcohol (vs. dark brown).

KW - Bythitinae

KW - East China Sea

KW - Japan

KW - New species

KW - Ophidiiformes

KW - Timorichthys

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DO - 10.1007/s10228-013-0341-3

M3 - Journal article

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SN - 1341-8998

VL - 60

SP - 237

EP - 240

JO - Ichthyological Research

JF - Ichthyological Research

IS - 3

ER -

A new species of Timorichthys (Ophidiiformes: Bythitidae) from the East China Sea

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