Crown sweeper

description

Description. Count and measurement of the type specimens are given in Table 1. Characters stated in the diagnosis are not repeated. Body compressed, width 6.9 – 8.6 in SL; body deep, deepest at dorsal fin origin, depth 2.3 – 2.5 in SL; head large and deep, length 3.4 – 3.6 in SL, depth 3.0 – 3.3 in SL; snout very short, length 3.7 – 4.4 in HL; eye large 2.4 – 2.7 in HL; interorbital very narrow 3.0 – 3.6 in HL; dorsal outline convex to dorsal-fin base, extending somewhat linearly to caudal peduncle; ventral outline convex to anal-fin base, extending somewhat linearly to caudal peduncle; chest not keeled; dorsal fin origin vertically above pelvic fin origin; anal fin origin vertically below dorsal fin origin; first dorsal fin spine minute, and last longest; dorsal fin base clearly shorter than longest dorsal fin soft ray; first anal fin spine minute; first or second anal fin soft ray longest of anal fin; posterior tip of paired fins reaching vertical line from anus; caudal fin deeply forked; uppermost and lowermost branched ray longest of caudal fin. Mouth large and strongly oblique, upper jaw length 1.9 – 2.1 in HL; maxilla extending to middle of pupil; maxilla broadly expanded pos

Pempheris ufuagari sp. nov., a new species in the genus Pempheris (Perciformes, Pempheridae) from the oceanic islands of Japan

diagnosis

Diagnosis. Scale rows above lateral line 6 1 / 2 – 7 1 / 2 (usually 7 1 / 2); pored lateral-line scales 62 – 71; scales weakly ctenoid, thin, semicircular in shape, far wider than long, and deciduous (Fig. 2 a); snout outline convex in anterior part of orbit; tip of dorsal fin broadly black, the rest bright yellow; base of anal fin blackish; distinct blackish band on outer margin; posterior margin of caudal fin blackish, the rest bright yellow; distinct blackish spot on pectoral-fin base; no villiform tooth band extending outside lips on the upper and lower jaws.

Pempheris ufuagari sp. nov., a new species in the genus Pempheris (Perciformes, Pempheridae) from the oceanic islands of Japan

discussion

Remarks: Pempheris ufuagari is the largest species in the genus Pempheris. The largest specimen (BPBM 35286) measured 196.8 mm SL, which is larger than any other Pempheris specimens observed by us (2,703 specimens representing 32 species). The specimens collected from Ogasawara Islands as P. otaitensis by Randall et al. (1997) are identified here as P. ufuagari. Hatooka (2000) reported P. oualensis from Ogasawara Islands, providing an underwater color photograph. However, the photograph seemed to be P. ufuagari as it had yellow dorsal and caudal fins and a blackish band on the outer margin of the anal fin. Pempheris ufuagari has been collected only from Daito and Ogasawara Islands the two oceanic islands in Japan. This species was always collected with P. oualensis, and the first author observed they schooled together. However, P. oualensis has been commonly collected from other oceanic islands. Tropical species of Pempheris usually have wider distributions than that of P. ufuagari. However, P. otaitensis and P. rapa, also have restricted distributions. Oceanic islands are very rare in Japan, and Daito and Ogasawara Islands are particularly far from the continental shelf. Chaetodon

Pempheris ufuagari sp. nov., a new species in the genus Pempheris (Perciformes, Pempheridae) from the oceanic islands of Japan

etymology

Etymology. The name ufuagari means '' eastern end' ' in the traditional Okinawan dialect. The type locality Minami Daito Island was called '' Ufuagari-jima (jima means island) '' by the Okinawan people before 1885 when the Meiji government of Japan first landed.

Pempheris ufuagari sp. nov., a new species in the genus Pempheris (Perciformes, Pempheridae) from the oceanic islands of Japan