湘云鲫和湘云鲤的形态特征

Studies on the Morphological Characteristics of Triploid Crucian Carp and Triploid Common Carp

采用常规测量法和解剖法测定了湘云鲫、湘云鲤的形态特征 .湘云鲫的主要性状为 :背鳍条 3,17～2 0 ,臀鳍条 3 ,6 ,胸鳍条 1,14,腹鳍条 1,8.侧线鳞式 2 9～ 32 66 -V.第一列鳃弓外列鳃耙数 5 0～ 5 2 .下咽齿一行 ,4～ 4,铲齿 .体长为体高的 ( 2 .79± 0 .38)倍 ,为头长的 ( 3.75± 0 .2 5 )倍 ,为尾柄长的 ( 5 .5 9± 0 .33)倍 .头长为吻长的 ( 3.6 8±0 .46 )倍 ,为头高的 ( 1.2 4± 0 .11)倍 .尾柄长为尾柄高的 ( 1.2 3± 0 .11)倍 .湘云鲤的主要性状为 :背鳍条 3,17～ 19,臀鳍条 3 ,6 ,胸鳍条 1,13～ 14,腹鳍条 1,7～ 8.侧线鳞式 32～ 345～ 65～ 6 -V.第一列鳃弓外列鳃耙数 31～ 32 .下咽齿二行 ,2 ,4～ 4,2 ,臼齿 .体长为体高的 ( 3.0 9± 0 .17)倍 ,为头长的 ( 3.71± 0 .19)倍 ,为尾柄长的 ( 5 .70± 0 .6 9)倍 .头长为吻长的 ( 3.0 3± 0 .36 )倍 ,为头高的 ( 1.2 7± 0 .0 8)倍 .尾柄长为尾柄高的 ( 1.2 2± 0 .17)倍 .

The ordinary regulations and anatomy were selected to study the morphological features of Triploid crucian carp and Triploid common carp. The results of Triploid crucian carp are as follows: D.3, 17-20; A.3, 6; P.1, 14; V.1, 8. Scales formaula in lateral line is 29-32 6/6-V. The number of its gill rakers is 50-52. Its pharyngeal tooth formula is 1 row,4-4, shovel-shaped. The ratio of body length to body height is 2.79 ± 0.38; The ratio of body length to head length is 3.75 ± 0.25; The ratio of body length to caudal peduncel length is 5.59 ± 0.33; The ratio of head length to snout length is 3.68 ± 0.46; The ratio of head length to head height is 1.24 ± 0.11; The ratio of caudal peduncel length to caudal peduncel height is 1.23 ± 0.11. The results of Triploid common carp are as follows: D.3, 17-19; A.3, 6;P.1, 13-14; V.1. 7-8. Scales formula in lateral line is 32-34 5-6/5-6-V. The number of its gill rakers is 31-32. Its pharyngeal tooth formula is 2 row,2, 4-4, 2, molariform-like. The ratio of body length to body height is 3.09 ± 0.17; The ratio of body length to head length is 3.71 ± 0.19; The ratio of body length to caudal peduncel length is 5.70 ± 0.69; The ratio of head length to snout length is 3.03 ± 0.36; The ratio of head length to head height is 1.27 ± 0.08; The ratio of caudal peduncel length to caudal peduncel height is 1.22 ± 0.17.