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Overview

Comprehensive Description

Biology

Inhabits shallow rocky reefs (Ref. 42552); over rubble or rubble and sand bottom (Ref. 42181).
  • Randall, J.E and W.N. Eschmeyer 2001 Revision of the Indo-Pacific scorpionfish genus Scopaenopsis, with descriptions of eight new species. Indo-Pac. Fish. (34):79 p. (Ref. 42181)
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Distribution

Indo-West Pacific: Japan, Philippines, South China Sea, Queensland (Australia), Seychelles, Somalia, and the Gulf of Aden.
  • Randall, J.E and W.N. Eschmeyer 2001 Revision of the Indo-Pacific scorpionfish genus Scopaenopsis, with descriptions of eight new species. Indo-Pac. Fish. (34):79 p. (Ref. 42181)
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Indo-West Pacific.
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Physical Description

Morphology

Dorsal spines (total): 12; Dorsal soft rays (total): 9; Analspines: 3; Analsoft rays: 5; Vertebrae: 24
  • Nakabo, T., H. Senou and H. Masuda 1993 Scorpaenopsis iop, a new species of Scorpaenidae from southern Japan. Jap. J. Ichthyol. 40(1):29-33. (Ref. 10895)
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Size

Max. size

6.3 cm SL (male/unsexed; (Ref. 42181))
  • Randall, J.E and W.N. Eschmeyer 2001 Revision of the Indo-Pacific scorpionfish genus Scopaenopsis, with descriptions of eight new species. Indo-Pac. Fish. (34):79 p. (Ref. 42181)
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Diagnostic Description

With 33-37 vertical scale rows; 4 predorsal scales; a blunt head profile, eye protruded a little from the dorsal contour of head, no hump behind head; 2 spines on lachrymal overlying maxillary (1st spine forward and 2nd spine backward), broad postocular and tympanic spines and many small papillae on head (Ref. 10895). Interorbital ridges elevated posteriorly to join tip of tympanic spines; base of parietal spines not curving into occipital pit; first dorsal spine 1.6-1.9 in second spine (Ref 42181).Description: Characterized by mottled reddish brown color; anterior caudal peduncle often with broad irregular whitish bar; back below middle of dorsal fin sometimes with whitish area; upper opercular spine double; snout 3.4-3.8 in head length; interorbital width 7.0-7.8 in head length; orbit diameter 3.5-4.2 in head length below anterior half of eye is a deep subtriangular pit; depth of body 2.4-2.8 in SL (Ref 90102).
  • Nakabo, T., H. Senou and H. Masuda 1993 Scorpaenopsis iop, a new species of Scorpaenidae from southern Japan. Jap. J. Ichthyol. 40(1):29-33. (Ref. 10895)
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Type Information

Type for Scorpaenopsis cotticeps
Catalog Number: USNM 98891
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Preparation: Illustration
Year Collected: 1908
Locality: Tinakta Id. (N.), N. 82 Degrees W., 1.40 Miles; Sulu Archipelago, Tawi Tawi Group, Tinakta Island, Tawi Tawi Group, Tawitawi, Philippines, Sulu Archipelago, Sulu Sea, Pacific
Depth (m): 18 to 18
Vessel: Albatross
  • Type:
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Ecology

Habitat

Environment

demersal; marine; depth range 15 - 70 m (Ref. 42181)
  • Randall, J.E and W.N. Eschmeyer 2001 Revision of the Indo-Pacific scorpionfish genus Scopaenopsis, with descriptions of eight new species. Indo-Pac. Fish. (34):79 p. (Ref. 42181)
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Depth range based on 13 specimens in 1 taxon.
Water temperature and chemistry ranges based on 8 samples.

Environmental ranges
  Depth range (m): 10 - 78.665
  Temperature range (°C): 22.841 - 28.366
  Nitrate (umol/L): 0.889 - 5.586
  Salinity (PPS): 34.072 - 35.470
  Oxygen (ml/l): 4.057 - 4.703
  Phosphate (umol/l): 0.044 - 0.494
  Silicate (umol/l): 0.995 - 9.181

Graphical representation

Depth range (m): 10 - 78.665

Temperature range (°C): 22.841 - 28.366

Nitrate (umol/L): 0.889 - 5.586

Salinity (PPS): 34.072 - 35.470

Oxygen (ml/l): 4.057 - 4.703

Phosphate (umol/l): 0.044 - 0.494

Silicate (umol/l): 0.995 - 9.181
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Conservation

Threats

Not Evaluated
  • IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
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