Australian Museum Journal Paedogobius kimurai, a new genus and species of goby (Teleostei: Gobioidae: Gobiidae) from the west Pacific

Shortform:
Iwata et al., 2001, Rec. Aust. Mus. 53(1): 103–112
Author(s):
Iwata, A.; Hosoya, S.; Larson, H. K.
Year published:
2001
Title:
Paedogobius kimurai, a new genus and species of goby (Teleostei: Gobioidae: Gobiidae) from the west Pacific
Serial title:
Records of the Australian Museum
Volume:
53
Issue:
1
Start page:
103
End page:
112
DOI:
10.3853/j.0067-1975.53.2001.1326
Language:
English
Date published:
09 May 2001
Cover date:
09 May 2001
ISSN:
0067-1975
CODEN:
RAUMAJ
Publisher:
The Australian Museum
Place published:
Sydney, Australia
Digitized:
09 May 2001
Available online:
09 May 2001
Reference number:
1326
EndNote package:
EndNote file
Title page:
Title page (8kb PDF)
Complete work:
Complete work (219kb PDF)

Abstract

Paedogobius kimurai, a new genus and species of Gobiidae, is described. This diandric genus is unique among the Gobiidae in having a long rod-shaped pelvis separated posteriorly into distinct left and right halves and no subpelvic process; and the ectopterygoid and quadrate widely separated in the secondary male. This genus is also distinguishable from the other genera of Gobiidae in having the following combination of characters: a maxillo-vomerine meniscus; the posteriormost soft dorsaland anal-fin pterygiophores each supporting an unbranched soft ray; 10 abdominal and 15 caudal vertebrae; the first one or two dorsal-fin pterygiophores inserting between the 9th and 10th neural spines; some sensory papillae on the branchiostegal region; and no first dorsal fin. Mature females (about 15 mm SL) have a transparent body with only a few melanophores, no pelvic fins, small jaws with a few minute teeth, and the nostrils formed into a single pit. Secondary males (about 16 mm SL) have pelvic fins, many melanophores especially on the head, and a robust head with large jaws armed with long canine-like teeth, and two nostrils. Primary males (about 12 mm SL), are smaller than females, and also have pelvic fins and two nostrils; however, the head is not robust, the small jaws are armed with a pair of short canine-like teeth and pigmentation is diffuse. This species is known from Japan, Thailand and northeastern Australia.