The Pseudotriakidae are a small family of ground sharks, belonging to the order Carcharhiniformes, containing the false catsharks (genera Pseudotriakis and Planonasus) and gollumsharks (genus Gollum). It contains the only ground shark species that exhibit intrauterine oophagy, in which developing fetuses are nourished by eggs produced by their mother.[1]
| Pseudotriakidae | |
|---|---|
| |
| False catshark (Pseudotriakis microdon) | |
| |
| Slender smooth-hound (Gollum attenuatus) | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Subclass: | Elasmobranchii |
| Order: | Carcharhiniformes |
| Suborder: | Carcharhinoidei |
| Family: | Pseudotriakidae T. N. Gill, 1893 |
| Genera[1] | |
|
see text | |
Genera
editThe Pseudotriakidae contains the following genera:[2]
- Gollum Compagno, 1973
- Planonasus Weigmann, Stehmann & Thiel, 2013
- Pseudotriakis Félix António de Brito Capelo, 1868
Undescribed species
editOne undescribed species is known - one in the genus Gollum, (Gollum sp. B) - the white-marked gollumshark.[3][4]
References
edit
Wikispecies has information related to Pseudotriakidae.
- ^ a b Froese, Rainer; Pauly, Daniel (eds.). "Family Pseudotriakidae". FishBase. December 2012 version.
- ^ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Genera in the family Pseudotriakidae". Catalog of Fishes. California Academy of Sciences. Retrieved 27 October 2024.
- ^ Compagno, L.J.V.; M. Dando & S. Fowler (2005). Sharks of the World. Princeton University Press. pp. 257–260. ISBN 978-0-691-12072-0.
- ^ Weigmann, S., Stehmann, M.F.W. & Thiel, R. (2013): Planonasus parini n. g. and n. sp., a new genus and species of false cat sharks (Carchariniformes, Pseudotriakidae) from the deep northwestern Indian Ocean off Socotra Islands. Zootaxa, 3609 (2): 163–181.
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