Opisthoteuthis albatrossiRichard E. Young and Michael Vecchione
O. albatrossi was originally described from four specimens and placed in the genus Stauroteuthis. The enlarged suckers, however, clearly show that it belongs in the genus Opisthoteuthis. Another similar species of Opisthoteuthis (O. californiana) occurs in Japanese waters but has never been closely compared with O. albatrossi because of the latter's incorrect generic placement.
Figure. Oral view of the dordal arms of Opisthoteuthis albatrossi. Drawing from Sasaki, 1929.
- Arms and web
- Male: Each arm I with 3 greatly enlarged suckers (plus 2 or 3 suckers of intermediate size) in distal field.
- Proximal field absent (Nesis, 1982/87).
- Suckers number "80 or more" on each arm.
- Largest arm suckers (except for distal field of arms I) are suckers 6-7.
- Web along ventral arm margins with "faint nodule-like thickening."
O. albatrossi and O. californiana are distinctive among species of Opisthoteuthis in having greatly enlarged suckers in the distal field only on arms I. The holotype of O. albatrossi is a young male and the proximal field may not have developed. These two species could be synonyms (Hochberg, pers. comm.)
Type locality: Off Kinkasan, Rikuzen Prov., Japan. Northern Pacific boreal species, known from Sea of Okhotsk, Bering Sea and Southern California (Nesis, 1982/87).
Nesis, K. N. 1982/87. Abridged key to the cephalopod mollusks of the world's ocean. 385+ii pp. Light and Food Industry Publishing House, Moscow. (In Russian.). Translated into English by B. S. Levitov, ed. by L. A. Burgess (1987), Cephalopods of the world. T. F. H. Publications, Neptune City, NJ, 351pp
Sasaki, M. 1929. A monograph of the dibranchiate cephalopods of the Japanese and adjacent waters. Journal of the College of Agriculture, Hokkaido Imperial University, 20(Supplementary number):1-357.
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- First online 13 May 2003
Citing this page:
Young, Richard E. and Michael Vecchione. 2003. Opisthoteuthis albatrossi http://tolweb.org/Opisthoteuthis_albatrossi/20152/2003.05.13 in The Tree of Life Web Project, http://tolweb.org/. Version 13 May 2003 (under construction).