Ancistrogobius squamiceps Shibukawa, Yoshino & Allen, 2010
Scaly cheek-hook goby
Ancistrogobius squamiceps
photo by Senou, H.

Family:  Gobiidae (Gobies), subfamily: Gobiinae
Max. size:  2.98 cm SL (male/unsexed); 5.05 cm SL (female)
Environment:  benthopelagic; depth range 20 - 30 m
Distribution:  Northwest Pacific: Japan.
Diagnosis:  Dorsal spines (total): 7-7; Dorsal soft rays (total): 10-10; Anal spines: 1-1; Anal soft rays: 9-9. This species is unique from its congeners in having the following characters: nape broadly covered by scales (12 predorsal scales); with patch of scales on upper part of operculum; in life or when fresh, filamentous part of third dorsal spine entirely pale; anterior tip of sensory papilla row b meeting row 3 anteriorly; sensory papilla rows x^1 and x^2 continuous, not interrupted by row trp (sensory papilla rows trp short, restricted under rows x^1 + x^2); third spine of first dorsal fin elongate, filamentous, distinctly longer than preceding spine; 20 pectoral-fin rays; pelvic fins fused medially, well developed connecting membrane and frenum; length of fifth segmented ray of pelvic fin 85.0-92.4% of preceding ray; a distinct, black vertical bar below eye; distal tip of first dorsal fin with a black blotch, wide, extending posteriorly to middle of third interspinal membrane; sensory papilla row 4 short, well apart from eye (always restricted below row b) (Ref. 84001).
Biology:  Collected from sandy-mud or silt bottoms at depths of 20-30 m (Ref. 84001).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (120744)
Threat to humans:  harmless
Country info:   
 

Entered by: Capuli, Estelita Emily - 21.04.10

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