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Hemigaleus microstoma
Bleeker, 1852
Sicklefin weasel shark
Classification: Elasmobranchii Carcharhiniformes Hemigaleidae
Reference of the original description
Bijdrage tot de kennis der Plagiostomen van den Indischen Archipel. Verhandelingen van het Bataviaasch Genootschap van Kunsten en Wetenschappen, 24(art. 12): 1–92, Pls. 1–4
Bijdrage tot de kennis der Plagiostomen van den Indischen Archipel. Verhandelingen van het Bataviaasch Genootschap van Kunsten en Wetenschappen, 24(art. 12): 1–92, Pls. 1–4
Synonyms / new combinations and misspellings
Hemigaleus machlani, Hemigaleus microstomus, Negogaleus microstoma, Neogaleus microstoma
Hemigaleus machlani, Hemigaleus microstomus, Negogaleus microstoma, Neogaleus microstoma
Types
Hemigaleus microstoma
Syntype: BMNH: 1867.11.28.173
Hemigaleus machlani
Holotype: BSMP: 11429;
Hemigaleus microstoma
Syntype: BMNH: 1867.11.28.173
Hemigaleus machlani
Holotype: BSMP: 11429;
Description :
Citation: Hemigaleus microstoma Bleeker, 1852: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 12/2024
Please send your images of "Hemigaleus microstoma" to info@shark-references.com
Hemigaleus microstoma Bleeker, 1852; ZMH 25682; juvenile; Gulf of Thailand near Pak Phanang; 07.12.1993; mature male; 790 mm © Dr. Simon Weigmann, Elasmobranch Research Laboratory, Hamburg, Germany source: Weigmann, S. (2012): Contribution to the Taxonomy and Distribution of Six Shark Species (Chondrichthyes, Elasmobranchii) from the Gulf of Thailand. ISRN Zoology, vol. 2012, Article ID 860768, 24 pages, doi:10.5402/2012/860768
Hemigaleus microstoma Bleeker, 1852; ZMH 25682; juvenile; Gulf of Thailand near Pak Phanang; 07.12.1993; mature male; 790 mm © Dr. Simon Weigmann, Elasmobranch Research Laboratory, Hamburg, Germany source: Weigmann, S. (2012): Contribution to the Taxonomy and Distribution of Six Shark Species (Chondrichthyes, Elasmobranchii) from the Gulf of Thailand. ISRN Zoology, vol. 2012, Article ID 860768, 24 pages, doi:10.5402/2012/860768
Common names
Comadreja segadora, 
Milandre faucille, 
Sicklefin weasel shark, Weasel shark
Comadreja segadora, Milandre faucille, Sicklefin weasel shark, Weasel shark
Short Description
Australian specimens with dark-tipped fins; tooth counts 28-34/43-54; total vertebral counts 111 to 118 [20050]. Indonesian, Singapore and Thailand specimens with light-tipped fins; tooth counts 25-32/37-43; total vertebral counts 137 to 150 [20050]. Grey-brown above, lighter below, dorsal fins with white tips and posterior margins, sometimes with spots on sides of body [20050].
Australian specimens with dark-tipped fins; tooth counts 28-34/43-54; total vertebral counts 111 to 118 [20050]. Indonesian, Singapore and Thailand specimens with light-tipped fins; tooth counts 25-32/37-43; total vertebral counts 137 to 150 [20050]. Grey-brown above, lighter below, dorsal fins with white tips and posterior margins, sometimes with spots on sides of body [20050].
Distribution
Indo-West Pacific: southern India and Sri Lanka; China to Indonesia. Recent study confirmed that those found in Australia (and probably Papua New Guinea) is a separate species, Hemigaleus australiensis [3389]. Source: www.gbif.org
Indo-West Pacific: southern India and Sri Lanka; China to Indonesia. Recent study confirmed that those found in Australia (and probably Papua New Guinea) is a separate species, Hemigaleus australiensis [3389]. Source: www.gbif.org
Human uses
fisheries: minor commercial; price category: not marketed/unknown; price reliability:
fisheries: minor commercial; price category: not marketed/unknown; price reliability:
Biology
Viviparous, with a yolk-sac placenta; 4 to 14 fetuses in a litter [20050]; 2-4 pups after a gestation period of ~ 6 months; born at ~ 45-47 cm TL [2539]. Size of full-term fetuses (detached umbilical cords and placentae) ranges from 23.7 to 25.6 cm [517]. Distinct pairing with embrace [17086].
Viviparous, with a yolk-sac placenta; 4 to 14 fetuses in a litter [20050]; 2-4 pups after a gestation period of ~ 6 months; born at ~ 45-47 cm TL [2539]. Size of full-term fetuses (detached umbilical cords and placentae) ranges from 23.7 to 25.6 cm [517]. Distinct pairing with embrace [17086].
Habitat
demersal; marine
demersal; marine
Remarks
shark-references Species-ID=2653;
shark-references Species-ID=2653;
Parasites (arranged by Jürgen Pollerspöck)
Cestoda
Copepoda
Cestoda
- Didymorhynchus southwelli Beveridge & Campbell, 1988 [7412] [21816]
- Nybelinia mehlhorni Palm & Beveridge, 2002 [17845] [16112]
- Prochristianella aciculata Beveridge & Justine, 2010 [21816]
- Scyphophyllidium kirstenae (Ruhnke, Healy & Shapero, 2006) [7629]
- Trigonolobium spinuliferum (Southwell, 1911) Dollfus, 1929 [16252] [16112] [21816]
Copepoda
- Perissopus dentatus Steenstrup & Lütken, 1861 [16569]
- Pseudopandarus australis Cressey & Simpfendorfer, 1988 [16579] [25052]
Image gallery
