Birdsongichthys rectus
Birdsongichthys rectus Tornabene, Manning, Robertson, Van Tassell & Baldwin, 2022
Straightfinned goby

Family:  Gobiidae (Gobies), subfamily: Gobiinae
Max. size:  1.2 cm SL (male/unsexed)
Environment:  demersal; marine; depth range 110 - 241 m
Distribution:  Caribbean: Honduras and Saint Eustatius, Caribbean Netherlands.
Diagnosis:  Dorsal spines (total): 8-8; Dorsal soft rays (total): 9-9; Anal spines: 1-1; Anal soft rays: 8-8; Vertebrae: 28-28. This species is distinguished by having the following characters: possesses all taxonomic characters present in most members of the Gobiosomatini and the Gobiosoma group: D1 VII; dorsal pterygiophore insertion pattern 3-221110; vertebrae: precaudal 11 + 27 and caudal 16; hypurals 1 and 2 fused to some extent with hypurals 3 and 4 and the terminal vertebral element; epural 1; no ventral postcleithrum; pelvic fins separate, no anterior frenum connecting spines, no membrane connecting innermost rays absent or weakly developed; pelvic-fin rays 1-5 unbranched and without fleshy or flattened tips; pelvic-fin rays are long, extending posteriorly to a point between middle or end of anal fin; side of body covered with ctenoid scales, including two modified basicaudal scales; anal-fin pterygiophores 2 inserted before first haemal spine; with cephalic sensory canals; D2 I,9; A I,8. Colouration: body with three horizontal series of bright yellow spots, one along dorsal midline, one along lateral midline and one along ventral midline; anterior profile of head with gradual slope, it is not blunt or nearly vertical; eye large (~8.3-10.6% SL) (Ref. 130191).
Biology:  Occurs on sand and rubble substrates situated on or around the base of walls or steep rocky slopes on deep reefs (Ref. 130191).
IUCN Red List Status: Least Concern (LC); Date assessed: 15 February 2024 Ref. (130435)
Threat to humans:  harmless


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