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Containing group: Abraliopsis

Introduction

A. felis is the only cool-temperate species in the genus Abraliopsis. It is found in the Kuroshio-Oyashio transition zone and the California Current.

Characteristics

1. Tentacle clubs
   1. Two rows of relatively subequal-sized hooks on manus.
   2. Carpal flap absent; aboral keel short, narrow.
   image info
2. Arms
   1. Arms IV intermediate in lenght; ALI IV = 40-65.
   2. Arms with 12 to 22 hooks and 12-22 suckers (excl. arm IV).
3. Hectocotylus
   1. Hectocotylus with two subequal-sized offset flaps.
   image info
4. Integumental Photophores
   1. Ventral mantle and head with scattered arrangement of integumental organs.

Comments

This is the only species characterized by having a scattered arrangement of integument photophores and lacking the carpal flap.

Distribution

Vertical Distribution

In the Kuroshio-Oyashio transition zone, this species were occurred abundantly between 0-50m during night.

Geographical Distribution

A. felis is the only cool-temperate species in the genus Abraliopsis. This is distributed in westward the northern Northwest Pacific at 145° E along the Kuroshio-Oyashio transition zone and eastward to northwestern coast of America, and in the California Current southward to northern Baja California (Young, 1972).

References

Tsuchiya, K. 1993.

Okutani, T. and McGowan, J.A. 1969. Systematics, Distribution, and abundance ofthe epiplanktonic squid (Cephalopoda, Decapoda) larvae of the California Current. Bull. Scripps Inst. Oceanogr., 14:1-90.

Young, R.E. 1972. The systematics and areal distribution of pelagic cephalopods from the sea off southern California. Smiths. Contr. Zool., 97:1-159.