A larva of Coryphaenoides pectoralis (Gadiformes: Macrouridae) collected by deep-sea submersible from off Hokkaido, Japan

作者：Endo Hiromitsu^*; Nakayama Naohide; Suetsugu Kishiko; Miyake Hiroshi

来源：Ichthyological Research, 2010, 57(3): 272-277.

DOI：10.1007/s10228-010-0164-4

• Macrourid larva
• Coryphaenoides pectoralis
• Mesopelagic
• Shinkai 2000
• Hokkaido

A late-stage larva of Coryphaenoides pectoralis was first observed in situ and subsequently collected by the deep-sea submersible "Shinkai 2000'' from mesopelagic waters at a depth of 530 m off Hokkaido, Japan. The larva (14.5 mm in head length, 149+ mm in total length) has fan-like pectoral fins, elongate first dorsal fin, pelvic fin and tail, 10 first dorsal rays (including 2 pseudospines), and 7 pelvic fin rays, 6 branchiostegal rays, no light organ, anus just anterior to anal fin origin, 2 retia and gas glands, 14 abdominal vertebrae, and previously reported larval pigmentation. Counts of second dorsal and anal fin rays, and caudal vertebrae, are reported for the first time.

• 出版日期2010-7