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Liguriella Issel, 1908

Liguriella podophtalma Issel, 1908

Richard E. Young and Katharina M. Mangold (1922-2003)
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Liguriella podophtalma subadult female

Liguriella contains one recognized species. Voss, et al. (1992), however, suggest that two or more species exist.

Containing group: Taoniinae

Introduction

These are moderate sized squid, reaching at least 243 mm ML (Voss, et al. 1992). Little is known about their biology.

Brief diagnosis:

A taoniin ...

Characteristics

  1. Tentacles
    1. Tentacular club with suckers only.
    2. Carpal cluster absent.
    3. Two series of suckers and knobs on tentacular stalk.

  2. Funnel
    1. Funnel valve absent
    2. Funnel organ: Dorsal pad with three papillae.

  3. Mantle
    1. Tubercles present at funnel-mantle fusion.
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      Ventral view of funnel-mantle fusion

      Figure. Ventral view of funnel-mantle fusion, L. podophtalma, subadult female, 243 mm ML. Drawing from Voss (1980, p. 389, Fig. 7d).

  4. Fins
    1. Posterior insertion of fins at distal end of gladius.
    2. All but anterior margin of fins insert on vanes of gladius.

  5. Photophores
    1. Two contiguous photophores (one large, one small) on each eye.*
    2. Arm tip photophores absent.
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      ventral view of ocular photopores

      Figure. Ventral view of ocular photophores, L. podophtalma, subadult female, 243 mm ML. Drawing from Voss (1980, p. 389, Fig. 7e).

*Unusual within family; shared with Sandalops.

Comments

Characteristics are from Voss (1980).

Life History

Voss, et al. (1992) illustrated a paralarva and a juvenile but state that only subadults and adults can be confidently identified. Note the elongate "club" of the paralarva.

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Figure. Top - Paralarvae of L. podopthalma. Left -  Dorsal view. Right - Ventral view. Drawings from Voss (1980, p. 389, Fig. 7c, b).

Distribution

The genus occurs circumglobally in tropical and subtropical oceans (Voss, et al. 1992).

Other Names for Liguriella podophtalma Issel, 1908

References

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.

Title Illustrations
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Liguriella podophtalma subadult female
Scientific Name Liguriella podophtalma
Reference Voss, N. A. 1980. A generic revision of the Cranchiidae (Cephalopoda; Oegopsida). Bull. Mar. Sci., 30: 365-412
Sex Female
Life Cycle Stage subadult
Size 243 mm ML
Copyright © 1980 Bulletin of Marine Science
About This Page


University of Hawaii, Honolulu, HI, USA

Katharina M. Mangold (1922-2003)
Laboratoire Arago, Banyuls-Sur-Mer, France

Page: Tree of Life Liguriella Issel, 1908. Liguriella podophtalma Issel, 1908. Authored by Richard E. Young and Katharina M. Mangold (1922-2003). 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. and Katharina M. Mangold (1922-2003). 2016. Liguriella Issel, 1908. Liguriella podophtalma Issel, 1908. Version 16 November 2016 (under construction). http://tolweb.org/Liguriella_podophtalma/19552/2016.11.16 in The Tree of Life Web Project, http://tolweb.org/

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