AustrorossiaRichard E. Young and Michael Vecchione
This tree diagram shows the relationships between several groups of organisms.
The root of the current tree connects the organisms featured in this tree to their containing group and the rest of the Tree of Life. The basal branching point in the tree represents the ancestor of the other groups in the tree. This ancestor diversified over time into several descendent subgroups, which are represented as internal nodes and terminal taxa to the right.
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- No greatly enlarged suckers in middle of arms II and III.
- Both arms I hectocotylized.
- Clubs not expanded.
- Club suckers in 18-46 series.
- Photophores absent from ink sac.
- Ink sac functional.
- Anal flaps poorly-developed.
- Epirenal bodies present on either side of the rectum.
Reid (1991) considers this a subgenus of Rossia and she found that only the number of suckers series on the club clearly distinguishes this group from other Rossia.
The systematic value of the epirenal bodies is not fully known as they, apparently, have not been specifically looked for in all species of Rossia. The name refers to their close location to the renal papillae (Boletzky, 1971).
Boltezky, S.v. 1971. Neorossia n.g. pro Rossia (Allorossia) caroli Joubin, 1902, with remarks on the generic status of Semirossia Steenstrup, 1887 (Mollusca: Cephalopoda). Bulletin of Marine Science, 21(4):964-969.
\Chun, C. 1910. Die Cephalopoden. Oegopsida. Wissenschaftliche Ergebnisse der Deutschen Tiefsee Expedition auf dem Dampfer "Valdivia" 1898-1899, 18(1):1-401.
Reid, A. 1991. Taxonomic Review of the Australian Rossiinae (Cephalopoda: Sepiolidae), with a Description of a New Species, Neorossia leptodons, and Redescription of N. caroli (Joubin, 1902) . Bulletin of Marine Science, 49(3)(1991):748-831.
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- First online 01 September 2004
- Content changed 30 November 2003
Citing this page:
Young, Richard E. and Michael Vecchione. 2003. Austrorossia http://tolweb.org/Austrorossia/23977/2003.11.30 in The Tree of Life Web Project, http://tolweb.org/. Version 30 November 2003 (under construction).