Dwarf Slippery Goby

description

Description. Counts and measurements are shown in Table 2. Head depressed, trunk nearly cylindrical, and tail compressed. Eyes located dorsolaterally. Mouth strongly oblique with angle to body axis about 60 degrees. Lower jaw protruding beyond upper jaw. Posterior end of upper jaw reaching below middle point between anterior margin of iris and anterior margin of pupil. Canine-like teeth aligned on edges of anterior halves of premaxilla and dentary; four and three teeth on one side of premaxilla and dentary, respectively; posterior teeth larger (Fig. 2 A). An inner row of conical teeth extending from anterior part to more posterior part of dentary than the outer canine-like teeth row (Fig. 2 B). Additional small conical teeth observed on inner parts of premaxilla and dentary with a stereomicroscope, but no such small teeth with micro-CT. First dorsal fin with six spines. Second dorsal fin with one spine and nine soft rays. First and second dorsal fins connected by a low membrane behind last spine of the first dorsal fin. Anal fin with one spine and eight soft rays. Caudal fin rounded, with 17 segmented rays. Pectoral fin with 18 soft-rays. Pelvic fin with one spine and five soft ray

First record of Larsonella pumilus (Teleostei: Gobiidae) from Japan, with phylogenetic placement of the genus Larsonella

materials_examined

Material examined. OCF-P 3808, 21.6 mm SL, East China Sea off Seragaki, Onna Village, Okinawa, Japan, 11 August 2017.

First record of Larsonella pumilus (Teleostei: Gobiidae) from Japan, with phylogenetic placement of the genus Larsonella