Sicyopterus Rapa (Sicyopterus rapa) is a ray-finned fish of the family Gobiidae. It inhabits freshwater waters in benthic environments. This species can reach a maximum total length of 7.5 cm. It is assessed as Endangered on the IUCN Red List.
Dorsal spines (total): 7; Dorsal soft rays (total): 11; Anal spines: 1; Anal soft rays: 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 .: fusiform / normal.
Behavioural data for Sicyopterus Rapa is currently being reviewed.
Diet information for Sicyopterus Rapa is currently being compiled.
Reproduction data for Sicyopterus Rapa is currently being compiled.
Freshwater; brackish; demersal. Subtropical
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 2 records indexed .
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