澳洲肺鱼 - 概述

发布者:   2016-12-17 23:20:02   来源:   评论:0 点击:

澳洲肺鱼硬骨鱼纲肺鱼亚纲单肺目角齿科.现代肺鱼中最大的一种,体长最大者可达2米.身体的骨骼以软骨为主.体侧扁,狭长.体表披大型骨质圆鳞,头部和尾基鳞片较小,呈复瓦状排列.口端位,吻短.外鼻孔位于上唇前端,经内鼻孔与口腔相通.有鳃盖骨,无喷水孔.侧线发达.偶鳍呈桡状,内有肌肉,复盖着圆鳞.圆形尾,背鳍和臀鳍与尾鳍相连.缺前颌骨和上颌骨,齿板呈角状.单个鳔(肺)。生活于雨水充沛的小河中.旱季,河水变浅,身体就埋在泥土中,头间或(40—50分钟)伸出水面,呼吸空气.除用鳔(肺)呼吸外,还需用鳃呼吸,因此不能离水生活.成鱼捕食甲壳类,蠕虫等.无夏眠.9-10月产卵,仔鱼无外鳃,以水草为食.分布于澳大利亚昆士兰州的河流中.肉质鲜美.居民捕捞为食.Osteichthyes Subclass single lung lung fish head angle dental. Modern lung fish, the largest one of those in greatest body length of up to 2 meters. The body"s bone with cartilage-based. Lateral flat, long and narrow. Surface Phi large bone quality round scales, head and tail-based scales small, imbricate was arranged. I ended bits, a short kiss. outside the front of the nose is located in the upper lip, nose and mouth within the interlinked through. There opercular and no blowhole. lateral line developed. Even the radial fins was like, within the muscle, covered with round scales. rounded tail, dorsal and anal fin and the tail fins attached. missing before mandible and upper jaw, teeth plate was angular. a single swim bladder (lungs). Living in plenty of rain in the river. The dry season, shallow water, the body buried in the soil, the first from time to time (40-50 minutes) out the water, breathe the air. In addition to using swim bladder (lung) respiratory, the need to breathe using gills and therefore can not live away from the water. adult fish predation crustaceans, worms and so on. .9-10 no aestivation on spawning, larval fish without external gills, to aquatic plants for food. found in rivers in Queensland, Australia. fleshy delicious. resident fishing for food.

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