Overview

Brief Summary

Introduction

This genus is probably the most speciose in the Cephalopoda. Because of the great variability among species, the genus is best defined by the other two genera; that is, Sepia is the sepiid that doesn't have the major characters that define Metasepia and Sepiella.

Brief diagnosis:

  • without pore at posterior end of mantle.
  • with cuttlebone length approximately the same as mantle length.

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Comprehensive Description

Characteristics

  1. Head
    1. Beaks: Representative descriptions can be found here: Lower beak; upper beak.

  2. Funnel
    1. Funnel component of locking apparatus without pit-like depression at midpoint of groove.

  3. Mantle
    1. Mantle without posterior gland and pore (see Sepiella).

  4. Shell
    1. Cuttlebone length approximately equals mantle length.
    2. Cuttlebone usually with posterior spine between fins.

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Ecology

Habitat

Depth range based on 5379 specimens in 84 taxa.
Water temperature and chemistry ranges based on 2958 samples.

Environmental ranges
  Depth range (m): 0 - 795.5
  Temperature range (°C): 6.055 - 28.954
  Nitrate (umol/L): 0.054 - 32.133
  Salinity (PPS): 34.112 - 38.661
  Oxygen (ml/l): 1.362 - 6.244
  Phosphate (umol/l): 0.054 - 2.285
  Silicate (umol/l): 0.380 - 63.602

Graphical representation

Depth range (m): 0 - 795.5

Temperature range (°C): 6.055 - 28.954

Nitrate (umol/L): 0.054 - 32.133

Salinity (PPS): 34.112 - 38.661

Oxygen (ml/l): 1.362 - 6.244

Phosphate (umol/l): 0.054 - 2.285

Silicate (umol/l): 0.380 - 63.602
 
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: 475
Specimens with Sequences: 457
Specimens with Barcodes: 457
Species: 29
Species With Barcodes: 29
Public Records: 448
Public Species: 29
Public BINs: 39
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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Genomic DNA is available from 3 specimens with morphological vouchers housed at Museum of Tropical Queensland and Queensland Museum
Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© Ocean Genome Legacy

Source: Ocean Genome Resource

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Wikipedia

Sepia (genus)

Sepia (genus)!<-- This template has to be "warmed up" before it can be used, for some reason -->
Sepia sp.

Sepia is a genus of cuttlefish encompassing some of the best known and most common species. The name of the genus is the Latinized form of the Greek σηπία, sēpía, cuttlefish.

Classification

The species listed above with an asterisk (*) are questionable and need further study to determine if they are a valid species or a synonym. The question mark (?) indicates questionable placement within the genus.

References

  1. ^ Whiteaves, J.F. 1897. On some remains of a Sepia-like cuttle-fish from the Cretaceous rocks of the South Saskatchewan. The Canadian Record of Science 7: 459–462.
  2. ^ Hewitt, R. (1978). "The preservation of the shells of Sepia in the middle Miocene of Malta". Proceedings of the Geologists' Association 89: 227–237. doi:10.1016/S0016-7878(78)80013-3.  edit
  3. ^ Neethiselvan, N. & V.K. Venkataramani 2010. A New Species of Cuttlefish, Sepia vecchioni (Cephalopoda, Sepiidae) from Colachal Coast, South India.PDF Journal of American Science 6(4): 12–21.
Creative Commons Attribution Share Alike 3.0 (CC BY-SA 3.0)

Source: Wikipedia

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