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Cranchiinae Pfeffer 1912

Richard E. Young
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taxon links [up-->]Cranchia [up-->]Liocranchia [up-->]Leachia [down<--]Cranchiidae Interpreting the tree
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Containing group: Cranchiidae

Introduction

This is a much less diverse subfamily than the Taoniinae.

Brief diagnosis:

A cranchiid ...

Characteristics

  1. Arms
    1. Hectocotylus left or right arm IV.
    2. Arms III longest.

  2. Head
    1. Eyes stalked only in young Leachia, otherwise eyes sessile.

  3. Funnel
    1. Funnel fused to head laterally.

  4. Mantle
    1. One or two cartilagenous strips, usually with tubercles, extend posteriorly from each point of funnel-mantle fusion.

  5. Photophores
    1. Eyes with four or more small round photophores.

  6. Viscera
    1. 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
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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: Tree of Life Cranchiinae Pfeffer 1912. 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.

Citing this page:

Young, Richard E. 2008. Cranchiinae Pfeffer 1912. Version 22 April 2008 (under construction). http://tolweb.org/Cranchiinae/19540/2008.04.22 in The Tree of Life Web Project, http://tolweb.org/

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