Under Construction

New Genus New Species B

Richard E. Young, Caroline Sanchez, and Valerie Allain
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Containing group: New Subfamily

Introduction

Two mature males were taken from the stomach of the fish Alepisaurus ferox. Nevertheless, the small squid (22 mm ML) are in good condition, but many of the arm suckers were missing, and the viscera had some deterioration due to fixation in alcohol.

Brief diagnosis:

A member of New Subfamily with ...

Characteristics

  1. Arms
    1. Proximal sucker distinctly largest on all arms.
    2. Suckers biserial proximally (5-10 suckers on each arm), multiple (3-6) series of suckers distally. Arms IV appear to reach 5-6 series near tips, 5 series on arm III, 3 or 4 series on arm I and about 4 series on arm II.
    3. Transition gradual to smaller suckers and more numerous series gradual, smaller and arranged in 4 or more series distally;
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    Click on an image to view larger version & data in a new window

    Figure. Oral view of arms I-IV of New Species B. Arm IV is on the right in the photograph. Photograph by R. Young.

  2. Mantle
    1. Fusion between mantle and head in nuchal region narrow but distinctly broader than in species A.
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    Click on an image to view larger version & data in a new window

    Figure. Dorsal view of the nuchal fusion in New Species B. Arrows mark the width of the fusion. Photograph by R. Young.

  3. Viscera
    1. Anus located anteriorly in mantle cavity at posterior margin of ventral funnel wall.
    2. 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. Ventral  view of the mantle cavity of New Species B showing the position of the anus (left arrow) and the weak median mantle adductor muscle (right arrow). Part of the right gill was removed for examination. Photograph by R. Young.

Comments

More details of the description of New Species B can be found here.

Species boundaries cannot be reliably drawn with so few specimens. However, in addition to the characters listed above, species B seems to differ from species A in its much larger size, differences in chromatophore distribution (e.g., nuchal fusion, ventral head, fins), the more anterior position of the fins and, possibly, differences in the funnel valve.

Distribution

Both specimens of New Species B were taken from the stomachs of Alepisaurus ferox captured within the EEZ of New Caledonia on Jan. 27, 2004 at 22°29'S, 166°15'W (Samples: Palinstru03/11/2 and Palinstru03/11/1).

Title Illustrations
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Click on an image to view larger version & data in a new window
Scientific Name NewSpeciesB
Location Off New Caledonia
Specimen Condition Preserved
Sex Male
Life Cycle Stage Mature
View Ventral
Size 22 mm ML
Image Use creative commons This media file is licensed under the Creative Commons Attribution-NonCommercial License - Version 3.0.
Copyright ©
About This Page
We would like to thank M. Pablo Chavance who collected the specimens in the frame of the research programme ZoNéCo (Zone Economique de Nouvelle-Calédonie) onboard the vessel “Dar Mad”.


University of Hawaii, Honolulu, HI, USA


Secretariat of the Pacific Community


Secretariat of the Pacific Community, Noumea, New Caledonia

Page: Tree of Life New Genus New Species B. Authored by Richard E. Young, Caroline Sanchez, and Valerie Allain. 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., Caroline Sanchez, and Valerie Allain. 2006. New Genus New Species B. Version 10 December 2006 (under construction). http://tolweb.org/New_Genus_New_Species_B/77762/2006.12.10 in The Tree of Life Web Project, http://tolweb.org/

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