Yamakawa's Perchlet

description

Morphological diagnosis and description. Single specimen of Plectranthias yamakawai had following combination of characters: dorsal-fin spines X, dorsal-fin soft rays 18, anal-fin spines III, anal-fin soft rays 7, pectoral-fin rays 13, lateral-line scales 31, scales above lateral line 5, scales below lateral line 17, and gill rakers 6 + 10. Body compressed, moderately deep, depth 2.18 in SL; head large (length 2.19 in SL, depth 3.86 in SL), slightly convex dorsally. Mouth large, terminal; maxilla large, expanded easily, exposed when mouth closed; lower jaw significantly extending beyond upper jaw; opercle consisting of three spines (middle spine strongest and longest); preopercle serrated with three antrorse spines on lower margin of left side and two spines on right side; subopercle and interopercle margins not serrated. Teeth on both jaws minute; two enlarged conical teeth on right side and three on left side positioned anterior of upper jaw; single, enlarged, conical tooth positioned in middle area on both sides of lower jaw. Both vomerine and palatine patches consisting of villiform teeth; vomerine tooth patch V-shaped while palatine tooth patches narrow band-shaped. Teeth on t

New record of anthiadine fish, Plectranthias yamakawai (Actinopterygii: Perciformes: Serranidae), from the Philippines

distribution

Distribution. Plectranthias yamakawai is commonly collected from various fishing grounds in Ryukyu Islands, Japan (Yoshino 1972; Motomura and Harazaki 2017; Wada et al. 2020), and reports of it have also come from Taiwan (Chen and Shao 2002), and Samoan Islands (Wass 1984), as well as the western coast of Luzon Philippines (Fig. 2).

New record of anthiadine fish, Plectranthias yamakawai (Actinopterygii: Perciformes: Serranidae), from the Philippines

materials_examined

Material examined. UPVMI- 01360, 168.86 mm SL, Zambales fish market, the Philippines, 1 March 2022, leg. R. P. Babaran.

New record of anthiadine fish, Plectranthias yamakawai (Actinopterygii: Perciformes: Serranidae), from the Philippines

materials_examined

Holotype: FAKU 44565, 173 mm SL, female. Type locality: off Okinawa Island, Ryukyu Islands, Japan. Illustrations: Masuda et al., 1975: 50, fig. H; Randall, 1980: 184, fig. 32; Yoshino, 1972: 50 (fig. 1 B), 53 (fig. 3). D: X, 16 to 18. A: III, 7. P: 13. C: 17. V: 26 (10 + 16). S: 3. GR: 5 to 8 + 10 to 13. LL: 31 to 35. CP: 14.

Annotated checklist of anthiadine fishes (Percoidei: Serranidae)