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Halidesmus scapularis Günther, 1872

Snakelet
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Halidesmus scapularis   AquaMaps   Data sources: GBIF OBIS
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Halidesmus scapularis
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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Ovalentaria/misc (Various families in series Ovalentaria) > Pseudochromidae (Dottybacks) > Congrogadinae
Etymology: Halidesmus: Greek, als, alis = salt + Greek, desmos = link, bond (Ref. 45335).
More on author: Günther.

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

Marine; demersal; depth range 0 - 16 m. Subtropical; 31°S - 35°S

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

Southeast Atlantic: False Bay, Cape Province to Coffee Bay, Transkei in southeastern Africa.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 20.0 cm TL male/unsexed; (Ref. 4395)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 1; Dorsal soft rays (total): 58 - 63; Anal spines: 0; Anal soft rays: 48 - 52; Vertebrae: 66 - 69. Light to dark brown with color, sometimes with dusky crossbars (Ref. 4395). Middle lateral line joining with the dorsal lateral line just above the pectoral fin base; midline of parietal canal with a single pore; dark spot above pectoral fin (Ref. 531). Pelvic fin rarely absent; dorsal and anal fin membranes united only basally to caudal fin (Ref. 49841).

Biology     Glossary (e.g. epibenthic)

Common in intertidal pools and marginal subtidal areas (Ref. 4395).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Winterbottom, R., 1985. Revision and vicariance biogeography of the subfamily Congrogadidae (Pisces: Perciformes: Pseudochromidae). Indo-Pac. Fish. (9):34 p. (Ref. 531)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 28 June 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet compositions
Food consumptions
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Ecology
Ecology
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Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
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Reproduction
Maturities
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Anatomy
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Physiology
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Swimming type
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Genetics
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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 17.1 - 22.6, mean 20.1 °C (based on 46 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5312   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00102 (0.00046 - 0.00225), b=3.06 (2.88 - 3.24), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.3   ±0.58 se; based on food items.
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).