Family: |
Gobiidae (Gobies), subfamily: Sicydiinae |
Max. size: |
3.31 cm SL (male/unsexed) |
Environment: |
benthopelagic; freshwater |
Distribution: |
Asia: Japan (Ryukyu Is.), Taiwan and the Philippines. |
Diagnosis: |
Dorsal spines (total): 7-7; Dorsal soft rays (total): 10-10; Anal spines: 1-1; Anal soft rays: 10-10. This species is distinguished from all its congeners by having the following set of characters: D2 I,10; A I,10; pectoral fin rays 18-19; D1 with fourth and/or fifth spines longest in males; interval between first- and second-dorsal-fin bases in male less than 1/3 of the length of the first-dorsal-fin base; cephalic sensory pore D single; preopercular sensory canal with two pores, M’ and O’; absence of enlarged lobes or projections in front of the urogenital papilla of male; lateral scales reaching anteriorly beyond the area below the origin of the first dorsal fin; scales with large, spike-like ctenii laterally on the trunk in male. Colouration of male with a red head, a broad red band between bases of posterior half of second dorsal and anal fins, and red second dorsal and anal fins with a submarginal black stripe and a transparent margin (Ref. 125534). |
Biology: |
|
IUCN Red List Status: |
Not Evaluated (N.E.) Ref. (130435)
|
Threat to humans: |
harmless |
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