Sicyopterus rapa Parenti & Maciolek, 1996
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Family:  Gobiidae (Gobies), subfamily: Sicydiinae
Max. size:  7.47 cm SL (male/unsexed)
Environment:  demersal
Distribution:  Oceania: French Polynesia.
Diagnosis:  Dorsal spines (total): 7-7; Dorsal soft rays (total): 11-11; Anal spines: 1-1; Anal soft rays: 10-10. Distinguished from congeners by a low number (approximately 45) of teeth on each premaxilla, and ventral body surface unscaled in largest adults; interspinal membrane or frenum thick; branched caudal-fin rays 13-15; vertebrae 10+16=26; no rakers on first gill arch; transverse scales 44-62 rows; unscaled dorsal surface of head; operculum, cheeks and lateral portion of body to first dorsal fin irregularly scaled with small cycloid scales; ventral surface of body unscaled in largest adults, otherwise incompletely covered with small cycloid scales; remainder of body to caudal peduncle covered with imbricate ctenoid scales; anterior portion of caudal fin rays with smaller ctenoid or cycloid scales in one or two discrete rows dorsal and ventral to each ray (Ref. 12759).
Biology: 
IUCN Red List Status: Endangered (EN); Date assessed: 30 August 2011 (B1ab(iii)+2ab(iii)) Ref. (120744)
Threat to humans:  harmless
Country info:   
 

Entered by: Torres, Armi G. - 13.05.97
Modified by: Bailly, Nicolas - 24.07.05

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