2 literature references:

Author: Hilton-Taylor, C.
Year: 2000
Title: 2000 IUCN red list of threatened species.
Source: IUCN, Gland, Switzerland and Cambridge, UK. xviii + 61 p. (with 1 CD-ROM)
Author: FAO-FIES
Year: 2010
Title: Aquatic Sciences and Fisheries Information System (ASFIS) species list.
Source: Retrieved from http://www.fao.org/fishery/collection/asfis/en, March 2010.