Overview

Distribution

Range Description

This species is only known from the Indian Ocean including the coasts of: Somalia, Tanzania (Dar-es-Salaam), and the Philippines (Tawi Tawi Group, Sulu Archipelago) (Holthuis 2002). This species has a disjunct distribution.
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Physical Description

Type Information

Holotype for Scyllarus aesopius Holthuis, 1960
Catalog Number: USNM 104528
Collection: Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
Sex/Stage: male;
Preparation: Alcohol (Ethanol)
Year Collected: 1908
Locality: Sulu Archipelago,Tawitawi Group, Observation Island, Sulu, Philippines, North Pacific Ocean
Microhabitat: Coral
Depth (m): 16 to 16
Vessel: Albatross R/V
  • Holotype: 1960. Proc. Biol. Soc. Wash. 73: 149.
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Source: National Museum of Natural History Collections

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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
Specimens of this species which were found in the Philippines were found between 16 - 33 m, and were found on bottom coral or green mud (Holthuis 2002).

Systems
  • Marine
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Depth range based on 4 specimens in 1 taxon.
Water temperature and chemistry ranges based on 3 samples.

Environmental ranges
  Depth range (m): 16 - 65
  Temperature range (°C): 23.296 - 28.366
  Nitrate (umol/L): 0.889 - 8.732
  Salinity (PPS): 34.072 - 35.456
  Oxygen (ml/l): 3.338 - 4.541
  Phosphate (umol/l): 0.044 - 0.867
  Silicate (umol/l): 1.716 - 9.298

Graphical representation

Depth range (m): 16 - 65

Temperature range (°C): 23.296 - 28.366

Nitrate (umol/L): 0.889 - 8.732

Salinity (PPS): 34.072 - 35.456

Oxygen (ml/l): 3.338 - 4.541

Phosphate (umol/l): 0.044 - 0.867

Silicate (umol/l): 1.716 - 9.298
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2011

Assessor/s
Chan, T.Y.

Reviewer/s
Collen, B., Livingstone, S. & Richman, N.

Contributor/s
Batchelor, A., De Silva, R., Dyer, E., Kasthala, G., Lutz, M.L., McGuinness, S., Milligan, H.T., Soulsby, A.-M. & Whitton, F.

Justification
Edarctus aesopius has been assessed as Least Concern as it has a wide distribution, and it is not known to be harvested. Further research is needed however on the distribution and ecology of this species.
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Population

Population
This species is only known in literature from the recorded material in Holthuis (2002).

Population Trend
Unknown
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Threats

Major Threats
This is not a commercial species (Holthuis 1991).
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Management

Conservation Actions

Conservation Actions
There are no species-specific conservation measures in place for this species.
Further research is needed on the distribution and ecology of this species.
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