Overview

Brief Summary

Introduction

These small sepiids look much like other members of the family but they differ in having a reduced cuttlebone.

Brief diagnosis:

A sepiid ...

  • with cuttlebone restricted to anterior 75% of mantle.

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Comprehensive Description

Characteristics

  1. Funnel
    1. Funnel component of locking apparatus with pit-like depression at midpoint of groove.

  2. Mantle
    1. Mantle nearly as broad as long.
    2. Posterior gland and pore absent.

  3. Shell
    1. Cuttlebone 75-85% of mantle in length; located in anterior part of mantle.
    2. Cuttlebone with rhomboidal shape.

      Figure. Dorsal, side and ventral views of the cuttlebone of M. tullbergi, 32 mm shell length, Japanese waters. Drawing from Sasaki (1929).

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Distribution

Sandy bottom communities in the Indo-Malayan subregion of the Indo-West Pacific region (Nesis, 1982/7).

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Ecology

Habitat

Depth range based on 74 specimens in 3 taxa.
Water temperature and chemistry ranges based on 30 samples.

Environmental ranges
  Depth range (m): 10.5 - 94.6786
  Temperature range (°C): 23.578 - 26.692
  Nitrate (umol/L): 0.129 - 1.886
  Salinity (PPS): 34.394 - 35.474
  Oxygen (ml/l): 4.190 - 4.703
  Phosphate (umol/l): 0.089 - 0.284
  Silicate (umol/l): 0.380 - 2.731

Graphical representation

Depth range (m): 10.5 - 94.6786

Temperature range (°C): 23.578 - 26.692

Nitrate (umol/L): 0.129 - 1.886

Salinity (PPS): 34.394 - 35.474

Oxygen (ml/l): 4.190 - 4.703

Phosphate (umol/l): 0.089 - 0.284

Silicate (umol/l): 0.380 - 2.731
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
                                        
Specimen Records:4Public Records:3
Specimens with Sequences:3Public Species:1
Specimens with Barcodes:3Public BINs:1
Species:2         
Species With Barcodes:1         
          
Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

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Barcode data

Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

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Wikipedia

Metasepia

Metasepia is a small genus of small cuttlefish from the Pacific Ocean. The two members of this genus are characterised by a small, thick, diamond-shaped cuttlebone.

Species[edit]

This genus contains two known species:

References[edit]

Creative Commons Attribution Share Alike 3.0 (CC BY-SA 3.0)

Source: Wikipedia

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