Chelidoperca myathantuni Psomadakis & Gon & Htut 2021, sp. nov.

• Published in: Foods
• Main Authors: Psomadakis, Peter N., Gon, Ofer, Htut, Thaung
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2021
• Subjects: Biodiversity; Taxonomy; Animalia; Chordata; Actinopterygii; Perciformes; Serranidae; Chelidoperca; Chelidoperca myathantuni; Fridtjof Nansen
• Online Access: https://doi.org/10.5281/zenodo.4549213; http://treatment.plazi.org/id/F0537A31FFF44A32FF3B8B597BBAF9B4

Chelidoperca myathantuni sp. nov. (New English name: Mya Than Tun’s perchlet) Figures 1–3, 5–8, Table 1 Chelidoperca sp. A: Psomadakis et al . 2019: 385, Pl. XXVI, fig. 199 (Myanmar coast). Holotype. SAIAB 203716, 114.2 mm SL (Fig.1A), off Tanintharyi Coast, Myanmar, Andaman Sea, Indian Ocean, 13°3.21’N; 96°41.62’E, R / V Dr. Fridtjof Nansen , station 123, bottom trawl, 121–129 m depth, P.N. Psomadakis, 21 May 2015. Paratypes. 14 specimens, 74.3–129.5 mm SL, all collected with bottom trawl in the Andaman Sea, off Myanmar’s Tanintharyi Coast by the R / V Dr. Fridtjof Nansen : SAIAB 203721, 2: 84.3–91.8 mm SL, same collection data as holotype. SAIAB 203723, 110.9 mm SL (Fig. 1B), same collection data as holotype. SAIAB 209600, 4: 91.6–129.5 mm SL, 10°2.70’N, 97°22.75’E, 125 m, station 154, 184 m depth, P.N. Psomadakis, 27 September 2018. SAIAB 209599, 5: 74.3–115.1 mm SL, 10°21.44’N; 97°25.10’E, station 149, 181– 183 m depth, P.N. Psomadakis, 26 September 2018. USNM 451517, 99.5 mm SL and KAUM-I. 149193, 88.5 mm SL, both collected with SAIAB 209599. Diagnosis. A species of Chelidoperca distinguished from congeners by the following combination of characters: scale rows between lateral line and middle of spinous dorsal-fin base 3 (2 full-sized plus 1 half-sized); pored lateral-line scales 42–44 (modally 44); pectoral-fin rays 16; predorsal scales 7–8 (modally 7); scale rows absent from ventral side of dentary; scale rows on interorbital area extending to mid-orbit level; maxilla expanded posteriorly, covered ventrally by high skin fold; outermost row teeth of upper jaw distinctly enlarged; side of body with longitudinal dashed black stripe; 8–9 short white sub-triangular bars ventrally; dorsal-fin pale yellow with reddish pigment mostly restricted at base of spines and rays. Description. Proportional measurements are given in Table 1. Data for the holotype presented first, followed by paratype data in parentheses, if different. Dorsal-fin rays X, 10; anal-fin rays III, 6; pectoral-fin rays 16; pelvic-fin rays I, 5. ...