Habib Kazi Ahsan, Islam Md Jayedul, Nahar Najmun, Neogi Amit Kumer
Department of Fisheries Biology and Genetics, Faculty of Fisheries, Aquaculture and Marine Science, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh..
Zootaxa. 2020 Oct 13;4860(3):zootaxa.4860.3.6. doi: 10.11646/zootaxa.4860.3.6.
A new species of damselfish, Pomacentrus bangladeshius, is described from 3 specimens, 67-77 mm standard length (SL), collected from Saint Martin's Island, Bangladesh. The new species is distinguished from congeners in having the following combination of characters: XIV, 13 dorsal-fin elements; II, 14 anal-fin elements; 19 pectoral-fin rays; 18-19 lateral-line scales; 17-19 gill rakers on first arch; body depth 1.68-1.88 (1.88) in SL; snout 4.17-4.60 (4.17) in head length; head 2.91-3.09 (3.08) in SL; a prominent notch present between preorbital and suborbital; olive to dark brown body color, dark brown premaxilla, and yellow iris with a narrow bronze eye ring. The new species inhabits shallow reef flats around rock and coral outcrops. Phylogenetic analysis also shows the clear divergence of P. bangladeshius from other genetically closely related congeneric species retrieved from GenBank and that it represents a separate lineage.
一种新的雀鲷物种——孟加拉雀鲷（Pomacentrus bangladeshius），根据从孟加拉国圣马丁岛采集的3个标本进行描述，其标准体长（SL）为67 - 77毫米。该新物种与同属物种的区别在于具有以下特征组合：背鳍有14根硬棘、13根软条；臀鳍有2根硬棘、14根软条；胸鳍有19根鳍条；侧线鳞有18 - 19枚；第一鳃弓有17 - 19个鳃耙；体高为标准体长的1.68 - 1.88（1.88）倍；吻长为头长的4.17 - 4.60（4.17）倍；头长为标准体长的2.91 - 3.09（3.08）倍；眶前骨和眶下骨之间有一个明显的缺口；身体颜色为橄榄色至深褐色，上颌骨为深褐色，虹膜为黄色，有狭窄的青铜色眼环。该新物种栖息于岩石和珊瑚露头周围的浅礁坪。系统发育分析还表明，孟加拉雀鲷与从GenBank检索到的其他遗传关系密切的同属物种明显不同，代表一个独立的谱系。
