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- Dorsal fin spine 脊椎骨
- The shark's dorsal fin was cut off by the fisherman. 鲨鱼的背鳍被渔夫割了下来。
- The shark's dorsal fin was cut offby the fisherman. 鲨鱼的背鳍被渔夫割了下来。
- The angler's most spedialised feature is its fishing rod: a modified spine from the dorsal fin, complete with a flap of tissue that wiggles like live bait. 安康最显著的特徵就是它的"钓鱼杆";那是一根由背鳍进化而成的骨针;连著一个来回摆动;像活诱饵一样的生物组织.
- Any of various brightly colored fishes of the family Balistidae of warm coastal waters, having a roundish body and an erectile spine on the anterior dorsal fin that locks upright when the fish is threatened. 扳机鱼许多色彩鲜艳的鳞魨科的鱼，生长于温暖的海岸水域中，体型较圆，前部的前鳍有两根直立的硬刺，如果受到威胁，硬刺便直立不动
- His dorsal fin was down and his huge pectorals were spread wide. 它的脊鳍朝下耷拉着，巨大的胸鳍大张着。
- The dorsal fin is ornamented with these two colours. 空气垂直舵由这两色装饰。
- The second dorsal fin, near the tail, is much smaller. 靠近尾巴处的第二条背鳍要小得多。
- dogfishes having a spine in each dorsal fin. 背鳍上各有一刺的角鲨鱼。
- Full pearls below the dorsal fin area cum golden brush on the tail makes this a High Grade Bukit Merah Blue brooder. 高级布奇美拉蓝底过背的背鳍下面盖满小珠鳞及散布金粉的尾部。
- Any of several marine fishes of the family Trachinidae, having venomous spines on the gill cover and first dorsal fin. 龙鳖龙鳖科的几种海鱼之一，在鳃盖和第一背鳍上的许多毒刺
- A primitive, bony freshwater fish(Amia calva)of central and eastern North America, with a long, spineless dorsal fin. 弓鳍鱼北美洲中部和东部的一种原始、多骨的淡水鱼（弓鳍鱼弓鳍鱼属），具有长的无脊的背鳍
- A primitive,bony freshwater fish(Amia calva)of central and eastern North America,with a long,spineless dorsal fin. 弓鳍鱼北美洲中部和东部的一种原始、多骨的淡水鱼(弓鳍鱼弓鳍鱼属)，具有长的无脊的背鳍
- A primitive,bony freshwater fish(Amia calva)of central and eastern North America,with a long.spineless dorsal fin. 弓鳍鱼北美洲中部和东部的一种原始、多骨的淡水鱼(弓鳍鱼弓鳍鱼属)，具有长的无脊的背鳍
- Any of several marine fishes of the family Trachinidae,having venomous spines on the gill cover and first dorsal fin. 龙鳖龙鳖科的几种海鱼之一，在鳃盖和第一背鳍上的许多毒刺
- A primitive, bony freshwater fish(Amia calva) of central and eastern North America, with a long, spineless dorsal fin. 弓鳍鱼北美洲中部和东部的一种原始、多骨的淡水鱼（弓鳍鱼弓鳍鱼属），具有长的无脊的背鳍
- Predorsal length From the base of the anteriormost dorsal fin ray to the tip of the snout or upper lip. 背前长从最前面背鳍鳍条基底处到吻尖或上唇前端。
- Any of various brightly colored tropical Pacific scorpion fishes of the genus Pterois, having venomous spines in the dorsal fin. 蓑一种太平洋赤道地区产蓑属色彩鲜艳的锯鱿鱼，背鳍上有毒刺
- The newborn's flukes and dorsal fin are curled initially but soon become straight and rigid. 新生儿的背鳍和尾鳍刚开始成捲曲状，但很快就会伸展开且定型。
- Now he speeded up as he smelled the fresher scent and his blue dorsal fin cut the water. 那条鲨鱼闻到了新鲜的血腥味，正加速航行，蓝色的背鳍在水中划过。
