Characteristics
Figure. Oral view of arm of Grimpoteuthis bathynectes, showing web nodule (arrow). Drawing modified from Voss and Pearcy, 1990.
Figure. Left to right - Opisthoteuthis grimaldii shell (U-shaped), stained, photographed by R. Young; Cirroctopus glacialis shell (V-shaped), stained, photographed by R. Young; Luteuthis shuishi shell (W-shaped), photograph from O'Shea and Lu, 2002.
- Shape and consistency
- Body axis anterior-posteriorly compressed (shell reaches, or nearly reaches, posterior end of body; i.e., no gelatinous extension of the body exists posterior to the shell).
- Body axis anterior-posteriorly compressed (shell reaches, or nearly reaches, posterior end of body; i.e., no gelatinous extension of the body exists posterior to the shell).
- Arms and web
- Suckers and cirri extend to tips of arms.
- Secondary web absent.
- Web nodules (= web support) present (arrow) in some genera.
- Suckers unmodified.
- Cirri
- Cirri short (length 0.4 - 2.5 times diameter of largest sucker).
- Cirri short (length 0.4 - 2.5 times diameter of largest sucker).
- Shell
- Simple U-, V- or W-shaped.
- Lateral wings not expanded or only slightly expanded.
- Pigmentation
- Areolar spots present (arrow) in some genera.
Figure. Side view of a young Opisthoteuthis albatrossi showing areolae (arrow). Drawing modified from Sasaki, 1929.
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Opisthoteuthidae Verrill, 1896
Source information
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© Katharina M. Mangold (1922-2003), Michael Vecchione
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Tree of Life web project
Author: Richard E. Young
Author: Michael Vecchione
Author: Katharina M. Mangold (1922-2003)
Vecchione, Michael, Katharina M. Mangold (1922-2003), and Richard E. Young.2008. Opisthoteuthidae Verrill 1896. Version 21 May 2008 (under construction).http://dev.tolweb.org/Opisthoteuthidae/20089/2008.05.21 in The Tree of Life Web Project, http://tolweb.org/
Revisions
- 2011-02-08 22:27:40 UTC
- 2011-02-08 10:36:01 UTC
- 2010-12-14 04:20:48 UTC
- 2010-12-10 05:57:20 UTC
