Rossia
Richard E. Young and Michael Vecchione
- Rossia brachyura
- Rossia bullisi
- Rossia enigmatica
- Rossia macrosoma
- Rossia megaptera
- Rossia moelleri
- Rossia mollicella
- Rossia pacifica
- Rossia pacifica diegensis
- Rossia pacifica pacifica
- Rossia palpebrosa
- Rossia tortugaensis
Introduction
Species of Rossia are small (less than 50 mm ML in many species), benthic sepiolids generally found in depths greater than 50m.
Diagnosis
A rossiin ...
- with 6-12 sucker series on club.
- with functional ink sac and anal flaps.
- without photophores.
Characteristics
- Arms
- No greatly enlarged suckers in middle of arms II and III.
- Both arms I hectocotylized.
- Tentacles
- Clubs expanded.
- Club suckers in 6-12 series.
- Head
- Beaks: Descriptions of representative species can be found here: Lower beak; upper beak.
- Beaks: Descriptions of representative species can be found here: Lower beak; upper beak.
- Photophores
- Photophores absent from ink sac.
- Viscera
- Ink sac functional.
- Anal flaps well developed.
- Epirenal bodies known to be present only in Rossia bullisi (Boletzky, 1971).
Distribution
Arctic, boreal Atlantic and Pacific; tropical western Atlantic Ocean (Nesis, 1982/1987).References
Boletzky, S. v. 1971. Neorossia, n.g. pro Rossia caroli Joubin, 1902, with remarks on the generic status of Semirossia Steenstrup, 1887 (Mollusca: Cephalopoda). Bull. Mar. Sci. 21: 964-969.
Nesis, K. N. 1982. 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.
Voss, G. L. 1956. Review of the cephalopods of the Gulf of Mexico. Bull. Mar. Sci. Gulf Carib. 6: 85-178.
Title Illustrations
| Scientific Name | Rossia pacifica |
|---|---|
| Location | Sea of Japan |
| Specimen Condition | Live Specimen |
| View | Side |
| Copyright |
© Danté Fenolio
|
About This Page
University of Hawaii, Honolulu, HI, USA
National Museum of Natural History, Washington, D. C. , USA
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Rossia .
Authored by
Richard E. Young and Michael Vecchione.
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- Content changed 21 January 2014
Citing this page:
Young, Richard E. and Michael Vecchione. 2014. Rossia . Version 21 January 2014 (under construction). http://tolweb.org/Rossia/20024/2014.01.21 in The Tree of Life Web Project, http://tolweb.org/
