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Hemiscyllium trispeculare Richardson, 1843

Speckled carpetshark
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Native range | All suitable habitat | Point map | Year 2050
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Hemiscyllium trispeculare   AquaMaps   Data sources: GBIF OBIS
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Image of Hemiscyllium trispeculare (Speckled carpetshark)
Hemiscyllium trispeculare
Picture by Murch, A.


Papua New Guinea country information

Common names: Speckled carpet shark
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Also Ref. 6993.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/pp.html
National Fisheries Authority: http://www.spc.org.nc/coastfish/Countries/PNG/png.htm
Occurrences: Occurrences Point map
Main Ref: Allen, G.R., 1998
National Database:

Common names from other countries

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (sharks and rays) > Orectolobiformes (Carpet sharks) > Hemiscylliidae (Bamboo sharks)
Etymology: Hemiscyllium: hemi-, from hemisys (Gr.), half, presumably referring to similarity and/ or close affinity to Scyllium (=Scyliorhinus, now in Scyliorhinidae) and/or Chiloscyllium; skylion, Greek for dogfish or small shark. (See ETYFish);  trispeculare: tri-, from tres (L.), three; specularis (L.), watchful or looking, referring to three eyespots (ocelli) on shoulder. (See ETYFish).
  More on author: Richardson.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; reef-associated; depth range 0 - 50 m (Ref. 54542).   Tropical; 8°S - 22°S, 114°E - 152°E (Ref. 54542)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Western Pacific: northern Australia (including Western Australia) (Ref. 6871). Possibly in the Mollucas (Indonesia).

Length at first maturity / Size / Weight / Age

Maturity: Lm ?, range 53 - ? cm
Max length : 79.0 cm TL male/unsexed; (Ref. 43278)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 0; Anal spines: 0; Anal soft rays: 0. Body covered with numerous, densely clustered dark, small and large spots that form a reticular network of light ground color between them; dark crossbands strong on ventral surface of tail (Ref. 13575).

Biology     Glossary (e.g. epibenthic)

Found on shallow coral reefs of the continental shelf (Ref. 247). Probably mainly feeding on benthic invertebrates (Ref. 6871). Oviparous (Ref. 50449).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).

Main reference Upload your references | References | Coordinator | Collaborators

Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 19 February 2015

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless (Ref. 247)




Human uses

Fisheries: minor commercial
FAO(Fisheries: species profile; publication : search) | FishSource |

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Estimates based on models

Preferred temperature (Ref. 115969): 26.9 - 28.7, mean 27.9 (based on 210 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5020   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00407 (0.00181 - 0.00918), b=3.09 (2.89 - 3.29), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.5   ±0.37 se; based on food items.
Resilience (Ref. 120179):  Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100).
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (52 of 100).
Price category (Ref. 80766):   Unknown.