鳚科是一种广泛的海洋鱼类,分布在世界各地的热带和温带海洋上,最近我们又发现了一种。斯不兰氏脂胎鳚(Starksia Plendens)是由加勒比的新矶鳚科演化而来,根据各种因素被确定为新物种。

 

 

 

斯不兰氏脂胎鳚的颜色和图案变化很大,这两个特征往往是任何新物种不同于其他物种的第一标志。以斯不兰氏脂胎鳚为例,对这种鱼进行了大量水下照片和基因分析,确定了这种鱼确实是一个新的物种。

 

 

从幼体、雄性、雌性、和繁殖方面,甚至是和暗礁相近的花纹来看,新物种斯不兰氏脂胎鳚都(和近亲物种)有很大的差异,并且,通过对DNA的仔细观察,也证实了斯不兰氏脂胎鳚与同类物种的DNA差异。斯不兰氏脂胎鳚最重要的生理特征是雌雄个体身体的外观差别很大但嘴唇上都有黑色的细条纹。新物种斯不兰氏脂胎鳚只在开曼群岛被发现过,以前大家认为是腹鳞斯氏脂胎鳚(S. lepicoelia)在当地的特有种群。

 

原文:

Blennies are a broad group of marine fish that occur on tropical and temperate oceans all over the world, and recently we’ve discovered one more. Starksia splendens is part of a group of closely related small labrisomid blennies from the Caribbean which was identified as unique based on a variety of factors. 

 

The species of Starksia have highly variable coloration and pattern, two features which are usually the first indications that any species is new and different from other species. In the case of Starksia splendens, it took a lot of underwater photographs of this fish and genetic analysis to determine that this fish is indeed a unique species. 

 

Since the appearance of Starksia blennies varies so much from juvenile to adult, male to female, breeding coloration and even the part of the reef with which it is trying to blend in, it was close examination of DNA which confirmed the divergence of S. splendens from similar species. The defining physical characteristic turned out to be the presence of thin black stripes on the lips of both sexes, even though the overall body appearance varies wildly. The newly described Starksia splendens is only known from the Cayman Islands and was previously believed to be a local endemic population of S. lepicoelia.