Galiteuthis
Richard E. Young and Katharina M. Mangold (1922-2003)
Galiteuthis contains five recognized species, but Voss, et al. (1992) suggests that an additional one or two species exist.
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close boxIntroduction
Some species, at least, of Galiteuthis reach a large size of 660 mm ML (Nesis, 1982, suggests that they may reach a size of 2.7 m ML). Species are easily recognized by the hooks on the tentacular clubs while lacking hooks on the arms, and the long, slender, terminal fins.
Brief diagnosis:
A taoniin ...
- with club armature mostly in two series and consisting of large hooks.
- with long, lanceolate, terminal fins.
Characteristics
- Tentacles
- Tentacular clubs with large hooks.*
- Clubs with equally developed dorsal and ventral protective membranes; club keels absent.
- Two series of suckers and pads on distal 2/3 to 3/4 of tentacular stalk.Click on an image to view larger version & data in a new window
Figure. Oral view of tentacular club of G. phyllura, 359 mm ML. Drawing from Young (1972).
- Funnel
- Funnel valve absent.
- Funnel organ: Dorsal pad with three flattened papillae.
- Mantle
- Tubercles present or absent at the funnel-mantle fusion depending on species.
- Fins
- Fins lanceolate, terminal (see title illustration); anterior insertion on shell sac.
- Photophores
- Two ocular photophores: Medial photophore with crescent-shaped photogenetic region; Lateral photophore with short, slightly curved photogenetic region that lies within the concavity of the first.
- Arm tip photophores absent.Click on an image to view larger version & data in a new window
Figure. Lateral (left) and ventral (right) views of ocular photophores of G. glacialis, 333 mm ML. Drawing from Voss (1980, p. 393).
*Unusual within family, shared only with Mesonychoteuthis (but see condition in Taonius).
Comments
The distinctive hooks of the tentacular clubs first appear at 35-60 mm ML (Voss, et al., 1992). Characteristics are from Voss (1980).
Distribution
Members of this genus are found circumglobally in all oceans except the Arctic Ocean (Nesis, 1982).
References
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.
Voss, N. A. 1980. A generic revision of the Cranchiidae (Cephalopoda; Oegopsida). Bull. Mar. Sci., 30: 365-412.
Voss N. A., S. J. Stephen and Zh. Dong 1992. Family Cranchiidae Prosch, 1849. Smithson. Contr. Zool., 513: 187-210.
Young, R. E. 1972. The systematics and areal distribution of pelagic cephalopods from the seas off Southern California. Smithson. Contr. Zool., 97: 1-159.
Title Illustrations
| Scientific Name | Galiteuthis armata |
|---|---|
| Location | Central North Atlantic |
| Acknowledgements | Photograph taken on the MarEco cruise of the R/V G.O. SARS |
| Specimen Condition | Live Specimen |
| View | Side |
| Size | 240 mm ML |
| Image Use |
 This media file is licensed under the Creative Commons Attribution-NonCommercial License - Version 3.0.
|
| Copyright |
© 2004
|
| Scientific Name | Galiteuthis phyllura |
|---|---|
| Location | Off California |
| Reference | Young, R. E. 1972. The systematics and areal distribution of pelagic cephalopods from the seas off Southern California. Smithson. Contr. Zool., 97: 1-159. |
| Size | 170 mm ML |
| Image Use |
This media file is licensed under the Creative Commons Attribution-NonCommercial License - Version 3.0.
|
| Copyright |
© 1972
|
About This Page
Drawings from Voss (1980) printed with the Permission of the Bulletin of Marine Science.
University of Hawaii, Honolulu, HI, USA
Katharina M. Mangold (1922-2003)
Laboratoire Arago, Banyuls-Sur-Mer, France
Page copyright © 2016 and Katharina M. Mangold (1922-2003)
Page: Tree of Life
Galiteuthis .
Authored by
Richard E. Young and Katharina M. Mangold (1922-2003).
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- Content changed 22 November 2011
Citing this page:
Young, Richard E. and Katharina M. Mangold (1922-2003). 2011. Galiteuthis . Version 22 November 2011 (under construction). http://tolweb.org/Galiteuthis/19557/2011.11.22 in The Tree of Life Web Project, http://tolweb.org/
