Big-eyed slender cardinal fish

description

Epigonus atherinoides: MOcHIzuKI 1982: 226 (dEscRIPTIOn, KyusHu-PAlAu RIdgE); MOcHIzuKI & SHIRAKIHARA 1983: 202, fIg. 2 (dEscRIPTIOn, HAWAIIAn IslAnds, KyusHu-PAlAu RIdgE); MOcHIzuKI 1984: 146, Pl. 133 - Q (cOlOR PHOTOgRAPH And nOTEs); PARIn & AbRAmOv 1986: 176 (dEscRIPTIOn, NAzcA And SAlA y GOmEz RIdgEs); PARIn 1991: 679 (lIsT, NAzcA And SAlA y GOmEz RIdgEs); AbRAmOv 1992: 95 (nOTEs And KEy); HAyAsHI 1993: 682 (KEy); CHAvE & Mundy 1994: 397 (lIsT, HAWAIIAn ARcHIPElAgO); MOcHIzuKI 1997: 306 (cOlOR PHOTOgRAPH And nOTEs); CHAvE & MAlAHOff 1998: 102 (lIsT, HAWAIIAn IslAnds); GOn 1999: 2613 (KEy And nOTEs); HAyAsHI 2000: 780 (KEy); HAyAsHI 2002: 780 (KEy); Mundy 2005: 357 (lIsT And nOTEs, HAWAIIAn IslAnds); RAndAll 2007: 217 (nOTEs, HAWAIIAn IslAnds); OKAmOTO & FuKuI 2011: 391 (KEy); OKAmOTO 2012: 252 (KEy); HAyAsHI 2013: 865 (KEy); OKAmOTO 2016: 182 (PHOTOgRAPH And dEscRIPTIOn, HAWAIIAn IslAnds, KyusHu-PAlAu RIdgE, AusTRAlIA, SOcIETy IslAnds, NAzcA And SAlA y GOmEz RIdgEs).

Epigonus okamotoi (Perciformes: Epigonidae), a junior synonym of E. draco, with new distributional records for E. atherinoides and E. lifouensis in the West Pacific

diagnosis

Diagnosis. A species of Epigonus With the folloWing combination of characters: dorsal-fin rays VII – I, 10 or rarely VII – I, 9; pectoral-fin rays 20 – 22; total gill rakers 20 – 23; vertebrae 10 + 15; pyloric caeca 11 – 15; pored lateral-line scales 46 – 50 + 3 – 5; scales beloW lateral line 7 – 8; opercular spine pungent; maxillary mustache-like processes blunt; ribs on last abdominal vertebra absent or rarely present but reduced; upper margin of pectoral-fin base subequal to level of horiZontal line through center of eye; proximal radial of first anal-fin pterygiophore broad; cycloid scales on lateral sides of body; head length 28.2 – 32.7 % SL; upper-jaW length 10.2 – 11.9 % SL; caudal-peduncle depth 6.4 – 8.2 % SL.

Epigonus okamotoi (Perciformes: Epigonidae), a junior synonym of E. draco, with new distributional records for E. atherinoides and E. lifouensis in the West Pacific

discussion

Remarks. The Japanese specimen is a juvenile With dense pigmentation on the posterior half of the lateral side of the body. Epigonus megalops (Smith & Radcliffe in Radcliffe, 1912) had been regarded as a junior synonym of E. atherinoides; hoWever, the former Was recogniZed as a valid species by Okamoto (2016).

Epigonus okamotoi (Perciformes: Epigonidae), a junior synonym of E. draco, with new distributional records for E. atherinoides and E. lifouensis in the West Pacific

distribution

Distribution. KnoWn from the northeastern Japan (present study), Kyushu-Palau Ridge (MochiZuki 1982), HaWaiian Islands (Gilbert 1905), Western Australia (Okamoto 2016), Society Islands (Okamoto 2016), Papua NeW Guinea (present study), and NaZca and Sala y GomeZ Ridges (Parin 1991), at depths of 276 – 755 m (Fig. 2).

Epigonus okamotoi (Perciformes: Epigonidae), a junior synonym of E. draco, with new distributional records for E. atherinoides and E. lifouensis in the West Pacific