World Library  
Flag as Inappropriate
Email this Article

Lizard catshark

Article Id: WHEBN0007266925
Reproduction Date:

Title: Lizard catshark  
Author: World Heritage Encyclopedia
Language: English
Subject: Schroederichthys, Scyliorhinidae, Chain catshark, Aulohalaelurus, Australian reticulate swellshark
Publisher: World Heritage Encyclopedia

Lizard catshark

Lizard catshark
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Superorder: Selachimorpha
Order: Carcharhiniformes
Family: Scyliorhinidae
Genus: Schroederichthys
Species: S. saurisqualus
Binomial name
Schroederichthys saurisqualus
Soto, 2001

The lizard catshark, Schroederichthys saurisqualus, is a small shark species of the catshark family, Scyliorhinidae, found off the coast of southern Brazil on the upper continental shelf at depths of between 250 and 500 metres (820 and 1,640 ft).


  • Description 1
  • Distribution and habitat 2
  • Biology 3
  • Status 4
  • References 5


The lizard catshark is a small species growing to a maximum size of 59 centimetres (23 in) for males and 69 centimetres (27 in) for females. It is similar in appearance to the slender catshark (Schroederichthys tenuis) but can be distinguished from it by the fact that it has white spotting, a longer distance between the two dorsal fins and a longer distance between the pelvic and anal fins. The dermal denticals on its skin are rounded rather than pointed and it has about 122 vertebrae while the slender catshark has only about 110.[2]

Distribution and habitat

The lizard catshark is native to the Atlantic coast of South America where it is present off Brazil. It is found on the upper part of the continental slope at depths of between 250 and 500 metres (820 and 1,640 ft)[1] among deepwater reefs where there are crinoids and brittle stars. There are often many freckled catsharks (Scyliorhinus haeckelii) in the same habitat.[2]


The lizard catshark lays a pair of eggs which are encased in greyish-green capsules with filamentous exteriors. The developing embryos feed on the egg yolks and hatch as miniature fish.[2]


The lizard catshark has been assessed by the International Union for Conservation of Nature as being a "vulnerable species". This is because it has a small total population and a limited range, only 600 kilometres (370 mi) of coastline, and lays its eggs in patches of coral which are susceptible to damage through trawling.[1] The water temperature is low (5 to 8 °C (41 to 46 °F)) in these parts and the coral is slow to regrow. The IUCN advocates the cessation of trawling on the lower continental shelf and upper slope of the reefs to prevent further decline in this species.[1]


  1. ^ a b c d Vooren, C.M.; Soto, J.M.R. (2004). "Schroederichthys saurisqualus".  
  2. ^ a b c : Lizard catshark"Schroederichthys saurisqualus". FishBase. Retrieved 2014-09-19. 
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from World Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.