Cranchiinae
Richard E. Young![taxon links](/Public/treeImages/Cranchiinae.png?x=-837884447)
![Interpreting the tree](/tree/img/help.gif)
![close box](/tree/img/close.gif)
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.
![example of a tree diagram](/tree/img/TreeHelpImage.gif)
You can click on the root to travel down the Tree of Life all the way to the root of all Life, and you can click on the names of descendent subgroups to travel up the Tree of Life all the way to individual species.
For more information on ToL tree formatting, please see Interpreting the Tree or Classification. To learn more about phylogenetic trees, please visit our Phylogenetic Biology pages.
close boxIntroduction
This is a much less diverse subfamily than the Taoniinae.
Brief diagnosis:
A cranchiid ...
- with many small, round photophores on eyeball.
- with cartilagenous tubercules dispersed and/or in strips on mantle.
Characteristics
- Arms
- Hectocotylus left or right arm IV.
- Arms III longest.
- Head
- Funnel
- Funnel fused to head laterally.
- Funnel fused to head laterally.
- Mantle
- One or two cartilagenous strips, usually with tubercles, extend posteriorly from each point of funnel-mantle fusion.
- One or two cartilagenous strips, usually with tubercles, extend posteriorly from each point of funnel-mantle fusion.
- Photophores
- Eyes with four or more small round photophores.
- Eyes with four or more small round photophores.
- Viscera
- Caecum larger than stomach.
Comparison of Cranchiinae genera
Cartilagenous tubercules | Stalked eyes in paralarvae | Funnel valve | Suckers in medial two series on club manus | |
Cranchia | cover mantle | No | Yes | Not enlarged |
Leachia | on single cartilagenous strips | Yes | No | Enlarged |
Liocranchia | on double, diverging cartilagenous strips | No | Yes | Not enlarged |
References
Voss, N. A. 1980. A generic revision of the Cranchiidae (Cephalopoda; Oegopsida). Bull. Mar. Sci. 30: 365-412.
Title Illustrations
![Click on an image to view larger version & data in a new window](/tree/img/magnify.gif)
Scientific Name | Cranchia scabra |
---|---|
Location | Sea of Japan |
Specimen Condition | Live Specimen |
View | Side |
Size | about 10 cm ML |
Copyright |
© Danté Fenolio
![]() |
About This Page
University of Hawaii, Honolulu, HI, USA
Correspondence regarding this page should be directed to Richard E. Young at
Page copyright © 2019
Page: Tree of Life
Cranchiinae
Authored by
. Richard E. Young.
The TEXT of this page is licensed under the
Creative Commons Attribution-NonCommercial License - Version 3.0. Note that images and other media
featured on this page are each governed by their own license, and they may or may not be available
for reuse. Click on an image or a media link to access the media data window, which provides the
relevant licensing information. For the general terms and conditions of ToL material reuse and
redistribution, please see the Tree of Life Copyright
Policies.
- First online 17 September 2004
- Content changed 27 February 2016
Citing this page:
Young, Richard E. 2016. Cranchiinae http://tolweb.org/Cranchiinae/19540/2016.02.27 in The Tree of Life Web Project, http://tolweb.org/
. Version 27 February 2016 (under construction).