Search

Plectranthias kojii sp. nov. (Perciformes: Serranidae) is described from a single specimen [49.4 mm in standard length (SL)] collected from 150 m depth off Hamahiga-jima Island, near Okinawa-jima Island, Japan. Although the new species is most similar to Plectranthias ryukyuensis Wada, Suzuki, Senou and Motomura 2020, morphological characteristics and DNA barcoding of the former clearly differed from those of congeners. Plectranthias kojii is distinguished from P. ryukyuensis by the following combination of characters: 12 or 13 pectoral-fin rays; 10 scale rows below the lateral line; 2 supraneurals, small head (length 42.5% SL) with rounded upper profile; slightly convex in postorbital region; small eye (diameter 11.9% SL); the anterodorsal margin not protruding above the dorsal head profile; caudal fin slightly convex; fourth dorsal-fin spine long (length 20.0% SL); pre-pelvic-fin short (length 34.8% SL); pectoral fin short (length 37.0% SL); pelvic-fin spine long (length 19.6% SL); body with an arched orange band from bases of 7th to 9th dorsal-fin spines to middle of caudal-fin base; and yellowish-orange spots and blotches on the snout, cheek, jaws, nape, and spinous portion of the dorsal fin. [ABSTRACT FROM AUTHOR]

A new species of perchlet, Plectranthias maekawa, is described on the basis of three specimens (58.2–65.1 mm standard length: SL) from the Tokara Islands, Kagoshima, Japan. The new species can be distinguished from all congeners by the following combination of characters: X, 15 or 16 dorsal-fin rays; 14 pectoral-fin rays; lateral line complete with 30 pored scales; 3 scale rows above lateral line; 6 diagonal rows of large scales on cheek between eye and corner of preopercle; two antrorse spines on ventral margin of preopercle; margins of subopercle and interopercle smooth; body depth 33.5–34.7% of SL; body width 17.2–17.4% of SL; third dorsal-fin spine longest, its length 46.2–47.2% of HL; caudal-peduncle depth 58.0–63.2% of caudal-peduncle length; body pinkish-white with five orange-red bands on lateral surface when fresh, first band broadest, first, fourth and fifth bands vertical to body longitudinal axis, second and third bands slightly backwardly oblique; small poorly defined yellow blotches scattered below lateral line when fresh, especially along red bands; scales above lateral line white, with distinct red margins when fresh; most cheek scales white or yellowish-white, without distinct red or yellow margins; body uniformly pale, with reduced nape pigmentation in preserved specimens. Japanese records of Plectranthias wheeleri Randall 1980, closely related to P. maekawa, is reviewed, with additional specimens of P. wheeleri from the Ryukyu Islands and Sagami Bay, Pacific coast of central Japan, the latter representing the northernmost record for the species. An unidentified specimen of Plectranthias from Okinawa, Japan, is briefly described. [ABSTRACT FROM AUTHOR]

Correction to: Ichthyol Res https://doi.org/10.1007/s10228-021-00842-1 Errors in the original publication of this article are corrected as follows: The species-group name I kojii i is emended to I kojiorum i . The original article can be found online at https://doi.org/10.1007/s10228-021-00842-1. Graph The accession numbers of the nucleotide sequences LC637811 to LC638720 listed in Materials and methods should be LC638711 to LC638720. [Extracted from the article]