There are two circumoral ciliary rows on the buccal region and a dorsal row of bristles.

其腹面口区具二环围口纤毛列；背面具一列背刚毛。

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They were documenting the dorsal fins of sharks, as part of an identification program, when a 10-foot-long great white shark suddenly landed on their vessel.

那天在莫斯湾的船上他正在与其他六名船员正在进行对鲨鱼群背部鳍记录的识别项目，一只10英尺长的大白鲨突然间跃上他们的船舷。

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They are cobalt-blue on top and silvery-white below, with a pronounced dorsal fin and a long, lethal, spear-shaped upper jaw.

它的顶部是钴蓝色，下面和银白色；有着明显的背鳍，还有着长长的、能致命的矛状上颚。

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It showed that a treatment called dorsal column stimulation could re-establish movement in rodents with Parkinson's-like problems.

VOA: special.2009.04.07

The 1943 French comic book, "Red Rackham's Treasure, " included a shark-like submarine with dorsal fins and a tail.

CNN: Winged luxury submarines 'fly' underwater

Passengers emerge onto the decks, leaning over the rail in the hope of spotting a telltale dorsal fin.

BBC: The perfect trip: New Zealand

There is a thinner engine cover, which has a slight dorsal fin appearance.

BBC: Radical new McLaren breaks cover