Shen Kang-Ning, Hung Tsang-Hsieh, Chen I-Shiung
Marine Ecology and Conservation Research Center; National Academy of Marine Research; Kaohsiung; 80661; Taiwan; R.O.C..
Institute of Marine Biology; National Taiwan Ocean University; Keelung; 202301; Taiwan; R.O.C.; Center of Excellence for the Oceans; National Taiwan Ocean University; Keelung; 202301; Taiwan; R.O.C..
Zootaxa. 2024 Dec 10;5550(1):32-40. doi: 10.11646/zootaxa.5550.1.6.
A new species and two new records of marine gobies from the genus Eviota were discovered in Taiwan between 2017 and 2023. The new species, Eviota rubrostriata n. sp., was found in eastern Taiwan and is more related to the E. zebrina complex, both morphologically and genetically. Bayesian analysis suggests it has a closer phylogenetic relationship to E. pseudozebrina from Fiji. The new species can be easily distinguished from other congeners by the following unique combination of features: (1) second dorsal fin I/8, anal fin I/7, pectoral fin 14; (2) longitudinal scale rows 23-24; (3) typical head canal pattern type 2; (4) fifth pelvic fin rays about 8-10% of fourth pelvic fin rays; (5) mouth large, extending to middle vertical of eye; and (6) specific coloration: ventral profile after anus with 6-7 main blackish brown spots; infraorbital band wide, deep red through posterior upper lip to lower lip; opercle with a horizontal blackish brown triangular stripe; eye with 5 main brown red regions; first dorsal fin with red spots in distal filamentous anterior 2 spinous rays in male; pectoral fin base with an orange band between two snow white bars; caudal fin base with a vertical black line, in front of the line with a pentagon shape of large black spot; and bright yellow above and below the black spot. Two new records of Eviota species from Taiwan are Eviota storthynx (Rofen, 1959) from eastern Taiwan and Eviota rubriguttata Greenfield & Suzuki, 2011 from Penghu, western Taiwan. A brief discussion of the new species with related species is also included.
2017年至2023年间，在台湾发现了艾氏鰕虎鱼属（Eviota）的一个新物种和两个新记录物种。新物种艾氏红纹鰕虎鱼（Eviota rubrostriata n. sp.）发现于台湾东部，在形态和基因上与斑马艾氏鰕虎鱼复合体（E. zebrina complex）关系更为密切。贝叶斯分析表明，它与来自斐济的拟斑马艾氏鰕虎鱼（E. pseudozebrina）有更近的系统发育关系。该新物种可通过以下独特的特征组合轻松与其他同属物种区分开来：（1）第二背鳍I/8，臀鳍I/7，胸鳍14；（2）纵列鳞23 - 24行；（3）典型的头部管道模式类型2；（4）第五根腹鳍鳍条约为第四根腹鳍鳍条的8 - 10%；（5）口大，延伸至眼的垂直中线；（6）特定的体色：肛门后方腹面有6 - 7个主要的黑褐色斑点；眶下带宽，深红色，从后上唇延伸至下唇；鳃盖有一条水平的黑褐色三角形条纹；眼睛有5个主要的棕红色区域；雄性第一背鳍在远端丝状前2根棘状鳍条上有红色斑点；胸鳍基部在两条雪白条纹之间有一条橙色带；尾鳍基部有一条垂直黑线，线前有一个五边形的大黑斑点；黑斑上方和下方为亮黄色。台湾艾氏鰕虎鱼属的两个新记录物种是来自台湾东部的罗氏艾氏鰕虎鱼（Eviota storthynx (Rofen, 1959)）和来自台湾西部澎湖的红斑艾氏鰕虎鱼（Eviota rubriguttata Greenfield & Suzuki, 2011）。文中还对新物种与相关物种进行了简要讨论。
