[OANNES Foro] Annotated checklist of the living sharks, batoids and chimaeras of the world, with a focus on biogeographical diversity

Mario Cabrejos casal en infotex.com.pe
Vie Mar 4 07:33:21 PST 2016


Journal of Fish Biology

.         First published: 10 February 2016 

.         DOI: 10.1111/jfb.12874 


 


Annotated checklist of the living sharks, batoids and chimaeras
(Chondrichthyes) of the world, with a focus on biogeographical diversity


.         S. Weigmann


o     

.          


Abstract


An annotated checklist of the chondrichthyan fishes (sharks, batoids and
chimaeras) of the world is presented. As of 7 November 2015, the number of
species totals 1188, comprising 16 orders, 61 families and 199 genera. The
checklist includes nine orders, 34 families, 105 genera and 509 species of
sharks; six orders, 24 families, 88 genera and 630 species of batoids
(skates and rays); one order, three families, six genera and 49 species of
holocephalans (chimaeras). The most speciose shark orders are the
Carcharhiniformes with 284 species, followed by the Squaliformes with 119.
The most species-rich batoid orders are the Rajiformes with 285 species and
the Myliobatiformes with 210. This checklist represents the first global
checklist of chondrichthyans to include information on maximum size,
geographic and depth distributions, as well as comments on taxonomically
problematic species and recent and regularly overlooked synonymizations.
Furthermore, a detailed analysis of the biogeographical diversity of the
species across 10 major areas of occurrence is given, including updated
figures for previously published hotspots of chondrichthyan biodiversity,
providing the detailed numbers of chondrichthyan species per major area, and
revealing centres of distribution for several taxa

 



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