holocephalan

• 指全头亚纲的软骨鱼类，头部两侧鳃裂被皮褶遮盖，仅留一对外鳃孔，身体向后渐细成长尾；即银鲛类。

A noun referring to a fish characterized by a highly compressed head and a body that tapers into a long tail.

1. Cartilaginous fishC2formalscientific

   A type of fish belonging to the subclass Holocephali, characterized by a high compressed head and a body that narrows into a long tail, often found in deep ocean waters.

   全头类鱼

   • The holocephalan is known for its distinctive high skull and streamlined body.
   • Many holocephalans, such as the chimaera, inhabit deep-sea environments.
   • Researchers studied the evolutionary adaptations of the holocephalan.
   • Holocephalans have a unique cartilage structure compared to other fish.

   同义词chimera