Four new gobiid fishes of the genus Bryaninops from the East Indies

Toshiyuki Suzuki and John E. Randall

aqua, International Journal of Ichthyology, pp. 11-26, Volume 20, Issue 1 – 15 January 2014


Four new species of the gobiid fish genus Bryaninops are described: B. annella from 19 specimens collected from sea fans of the genus Annella from Bali, Indonesia and Lizard Island, Great Barrier Reef; B. earlei from nine specimens collected from a sea pen and adjacent seagrass in the D’Entrecasteaux Islands, Papua New Guinea; B. tectus from six specimens collected from the gorgonian Ellisella quadrilineata at Linnet Reef, Great Barrier Reef; and B. translucens from two specimens commensal on a sponge in the Mentawai Islands off SW Sumatra. Bryaninops annella is closely related to B. amplus Larson and B. loki Larson with which it shares a rounded, cup-like, pelvic-fin disc, the same dorsal and anal fin-ray counts, and slender head and body; it differs in having the gill opening extending forward slightly before the posterior margin of the preopercle, longitudinal scale series 34-45, and transverse scale rows 8–10. The three species differ also by a modal count of one in pectoral-ray counts (annella with 14, loki with 15, and tectus with 16). Bryaninops earlei differs from all congeners in having large ctenoid scales (22-25 in longitudinal series); it is similar to B. natans in lacking a canal connecting posterior interorbital pores, but clearly different in having scales extending anteriorly onto the nape. Bryaninops tectus is closely related to B. nexus Larson and B. erythrops (Jordan and Seale), with which it shares the absence of anterior and posterior nostrils. It differs from these two species in lacking ctenoid scales below the second dorsal fin, above the anal fin, and on the ventral side of the caudal peduncle. Bryaninops translucens is closely related to B. dianneae Larson and B. spongicolus Suzuki, Bogorodsky & Randall, with which it shares an oblong and very flat pelvic disc, instead of rounded and cup-like as in most other species of the genus. It differs also from these two species in having ctenoid scales on the nape and a wide, anteriorly- directed pocket on the pelvic frenum.

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