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Enoploteuthis reticulata Rancurel 1970

Kotaro Tsuchiya and Richard E. Young
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Containing group: Enoploteuthis

Introduction

Enoploteuthis reticulata, a large species for the family, attains 130mm DML. It was first described from the stomach of a lancetfish in the Indonesian waters, and is broadly distributed in the Indo-West Pacific.

Brief diagnosis:

An Enoploteuthis (Enoploteuthis) with...

Characteristics

  1. Hectocotylus
    1. Hectocotylus with large truncate membranous flap on ventral edge.
    2. Modified portion with armature.
      Click on an image to view larger version & data in a new window
      Click on an image to view larger version & data in a new window

      Figure. Oral view of the tip of the hectocotylized right arm IV of E. reticulata, male, 71 mm ML, Hawaiian waters. Drawing from Burgess (1982).

  2. Tentacle
    1. Tentacle short, narrow.
    2. Carpal cluster elongate.
    3. Two rows of subequal-sized hooks on manus.
    4. Two rows of suckers on dactylus.
    5. Click on an image to view larger version & data in a new window
      Click on an image to view larger version & data in a new window

      Figure. Oral view of the tentacular club of E. reticulata, male, 117 mm ML, Hawaiian waters. Drawing from Burgess (1982).

  3. Head
    1. Beaks: Descriptions can be found here: Lower beak; upper beak.

  4. Integumental Photophores
    1. Ventral mantle with six longitudinal stripes of integumental organs, that are connected with oblique stripes to form latter-like pattern.
    2. Ventral head with four longitudinal stripes of integumental organs which connected in each side forming ring-like.
    3. Ventral side of arm III with a row of organs along almost entire length.

Life history

Eggs

Spawned eggs are ovoid, 1.08 x 0.78 mm, colorless, slightly opaque with a slightly dull, silvery chorion.

Paralarva

Paralarvae are distinguished by their numerous head and mantle chromatophores.

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Click on an image to view larger version & data in a new window

Figure. Ventral and dorsal views of paralarvae of E. reticulata and a ventral view of an early juvenile, Hawaiian waters. Drawings from Young and Harman (1985).

Juveniles

The following illustrations show the characteristic photophore patterns seen on the ventral mantle during development.

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Click on an image to view larger version & data in a new window

Figure. Ventral views of the mantles of two young E. reticulata.Drawings from Burgess (1982, p. 709, Fig. 2a,b).

Predators

E. reticulata is common item in the stomachs of lancetfish, Alepisaurus ferox, and bigeye tuna, Thunnus obesus, in the Indo-Pacific (Okutani and Tsukada, 1981; Moteki et al, 1993).

Distribution

Vertical distribution

Paralarvae were captured in the upper 200m (Young and Harman, 1985).

Geographical distribution

This species was first described from New Guinean waters. It is distributed widely in the tropical Indo-Pacific.

References

Burgess, L.A. 1982. Four new species of squid (Oegopsida: Enoploteuthis) from the central Pacific and a description of adult Enoploteuthis reticulata. Fishery Bulletin, 80(4):703-734.

Moteki, M., Fujita, K., Kohno, H., 1993. Stomach contents of longnoselancetfish, Alepisaurus ferox, in Hawaiian and central equatorial Pacific waters. J. Tokyo Univ. Fish. 80, 121137.

Okutani, T. 1974. Epipelagic decapod cephalopods collected by micronekton tows during the EASTROPAC expeditions, 1967-1968 (systematic part). Bull. Tokai Reg. Fish. Res. Lab., 80: 29-118.

Tsuchiya, K. 2000. Illustrated book of the Enoploteuthidae. In: Okutani T., ed. True face of Watasenia scintillans. Tokai University Press, Tokyo, p 196269. (in Japanese)

Young, R. E. and R. Harman. 1985. Early life history stages of enoploteuthin squids (Cephalopoda, Teuthoidea, Enoploteuthidae) from Hawaiian waters. Vie et Milieu, 35: 181-202.

Title Illustrations
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Click on an image to view larger version & data in a new window
Scientific Name Enoploteuthis reticulata
Location Hawaiian waters
Reference Burgess, L.A. 1982. Four new species of squid (Oegopsida: Enoploteuthis) from the central Pacific and a description of adult Enoploteuthis reticulata. Fishery Bulletin, 80(4):703-734. P. 709, Fig. Ba,b.
Creator L. Burgess
Sex Female
View Ventral
Size 62 mm ML
About This Page


Tokyo University of Fisheries, Tokyo, Japan


University of Hawaii, Honolulu, HI, USA

Page: Tree of Life Enoploteuthis reticulata Rancurel 1970. Authored by Kotaro Tsuchiya and 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:

Tsuchiya, Kotaro and Richard E. Young. 2012. Enoploteuthis reticulata Rancurel 1970. Version 10 November 2012 (under construction). http://tolweb.org/Enoploteuthis_reticulata/19713/2012.11.10 in The Tree of Life Web Project, http://tolweb.org/

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