克氏双带小丑 Amphiprion clarkii

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克氏双带小丑最大体长15厘米，背鳍鳍棘（总数）10条，背鳍软条（总数）15－16条，臀鳍鳍棘2条，臀鳍软条13－14条，成鱼体呈椭圆形而侧扁，吻短而钝。眼中大，上侧位。口大，上颌骨末端不及眼前缘；齿单列，齿端具缺刻。背鳍单一，软条部延长而钝圆形；尾鳍呈截形或内凹，上下叶外侧鳍条不延长呈丝状。成鱼体黑色，头部和胸腹部黄色，眼睛后方和体侧中后方各具一条宽阔的白竖带。背鳍黑色，软条部为黄色，余鳍均为黄色，尾柄处具一白色窄环带。

The maximum body length of the double banded clown is 15 centimeters, with a total of 10 dorsal fin spines, 15-16 dorsal fin soft rays, Jd023.com,2 anal fin spines, and 13-14 anal fin soft rays. The adult fish is oval shaped and flattened on the side, with a short and blunt snout. Eyes large, upper lateral position. The mouth is large, and the end of the maxilla is inferior to the anterior margin; Single row teeth with notches at the tooth ends.

The dorsal fin is single, with elongated and blunt rounded soft rays; The tail fin is truncated or concave, Cqdidi.cn,and the outer fins of the upper and lower lobes are not elongated and filamentous. The adult fish has a black body, a yellow head and chest and abdomen, and a wide white vertical band behind the eyes and in the middle and back of the body. Cqlnjx.cnThe dorsal fin is black, the soft strip is yellow, and the remaining fins are all yellow. There is a white narrow band at the tail stalk.

在不同的分布区域中，克氏双带小丑也有几种不同的形态，其中一种较为常见的是尾鳍前端白色，后端灰白色透明，上下叶具黄色缘；另一种则更为特别，眼睛前方至吻部为灰白色，尾鳍灰白色透明且上下叶具黄色缘，余鳍和胸腹部均为黑色。克氏双带小丑与其他双带小丑族群的最大区别在于尾柄上具一白色窄环带，且身体中后方的竖带非常宽阔，不难分辨。

In different distribution areas, there are several different forms of the double banded clown, one of which is more common: the front end of the tail fin is white, the back end is gray white and transparent, and the upper and lower leaves have yellow edges; The other type is even more unique, with a gray white color from the front of the eyes to the snout, a gray white transparent tail fin with yellow edges on the upper and lower leaves, and black color on the remaining fins and chest and abdomen. The biggest difference between the K’s double belt clown and other double belt clown groups is that there is a narrow white band on the tail handle, and the vertical band in the middle and rear of the body is very wide, which is not difficult to distinguish.

生活习性

栖息于泻湖和外礁斜坡水深1－55米之间的水域，通常成对生活，行一夫一妻制。与拿破仑地毯海葵（Cryptodendrum adhaesivum）、夏威夷海葵（Heteractis malu）、班马海葵（Macrodactyla doreensis）、奶嘴海葵（Entacmaea quadricolor）、念珠海葵（Heteractis aurora）、紫点海葵（Heteractis crispa）、公主海葵（Heteractis magnifica）、白地毯海葵（Stichodactyla haddoni）、长须地毯海葵（Stichodactyla gigantea）以及地毯海葵（Stichodactyla mertensii）共生。主要以浮游生物、桡脚类动物、海藻以及无脊椎动物为食。

分布范围

克氏双带小丑，原产地在印度洋至西太平洋的珊瑚礁海域，分布范围包括波斯湾（Persian Gulf）至西澳大利亚，印澳群岛各处（Indo-Australian Archipelago）和美拉尼西亚和密克罗尼西亚在西太平洋中的所属岛屿，北至台湾，南至日本和琉球群岛（Ryukyu Islands）一带海域。