Overview

Brief Summary

Introduction

Members of Sepiola are small, mostly less than 25 mm ML.

Brief diagnosis:

A sepiolin ...

  • with arm suckers in two series.
  • with bean-shaped visceral photophores.

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Comprehensive Description

Characteristics

  1. Arms
    1. Arm suckers in two series.

    2. Hectocotylus typically with:
      • 3-4 suckers at the base of the hectocotylus (left arm I).
      • Stalks of the subsequent 4 suckers form tubercules of the copulatory apparatus which can be transformed into hooks or lobes.
      • Distally the arm is thickened and suckers and stalks of the two series are somewhat separated forming a basket; some suckers often enlarged.

      Figure. Oral views of arms I of mature males of S. aurantiaca (A), S. steenstrupiana (B), S. ligulata (C), S. robusta. Drawings from Naef (1921-23).

  2. Tentacles
    1. Tentacular clubs with suckers in 8 or fewer series.

  3. Mantle
    1. Anterior margin of ventral mantle with narrow indentation for funnel and adjacent rounded projections.

      Figure. Ventral view of the mantle of S. aurantiaca, mature female, 13 mm ML . Compare with title illustration. Drawing modified from Naef (1921-23).

  4. Photophores.
    1. Pair of bean-shaped visceral photophores.

  5. Gladius
    1. Gladius present as a distinct rudiment

Comments

These characteristics are from Naef (1921-23). Naef places Inioteuthis as a subgenus of Sepiola.

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Distribution

Along the eastern margin of the Atlantic Ocean from Norway to western Africa; along the western margin of the Pacific Ocean from Sakhalin and the South Kuril Islands off Russia, Japan, Philippines and Singapore (Nesis, 1982/87).

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Ecology

Habitat

Depth range based on 204 specimens in 12 taxa.
Water temperature and chemistry ranges based on 82 samples.

Environmental ranges
  Depth range (m): 0 - 526
  Temperature range (°C): 1.359 - 27.306
  Nitrate (umol/L): 0.263 - 38.393
  Salinity (PPS): 33.310 - 38.670
  Oxygen (ml/l): 2.484 - 6.532
  Phosphate (umol/l): 0.171 - 2.656
  Silicate (umol/l): 0.987 - 79.795

Graphical representation

Depth range (m): 0 - 526

Temperature range (°C): 1.359 - 27.306

Nitrate (umol/L): 0.263 - 38.393

Salinity (PPS): 33.310 - 38.670

Oxygen (ml/l): 2.484 - 6.532

Phosphate (umol/l): 0.171 - 2.656

Silicate (umol/l): 0.987 - 79.795
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
Specimen Records:40
Specimens with Sequences:40
Specimens with Barcodes:40
Species:9
Species With Barcodes:9
Public Records:14
Public Species:7
Public BINs:4
Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Barcode data

Creative Commons Attribution 3.0 (CC BY 3.0)

© Barcode of Life Data Systems

Source: Barcode of Life Data Systems (BOLD)

Trusted

Article rating from 0 people

Default rating: 2.5 of 5

Wikipedia

Sepiola

Sepiola is a genus of bobtail squid comprising around 15 species.

Species

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

Source: Wikipedia

Unreviewed

Article rating from 0 people

Default rating: 2.5 of 5

Disclaimer

EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!