Borneo river shark

Taxobox
name = Borneo river shark


status = EN
trend =
regnum = Animalia
phylum = Chordata
classis = Chondrichthyes
subclassis = Elasmobranchii
ordo = Carcharhiniformes
familia = Carcharhinidae
genus = "Glyphis"
species = "G. sp. B"
binomial = "Glyphis sp. B"
binomial_authority = The Borneo river shark, "Glyphis sp. B", is a scientifically undescribed shark of the family Carcharhinidae, known only from a single specimen from Borneo. Recently, several small specimens have been collected from the Kinabatangan River of Sabah, in northern Borneo. Its length is thought to be up to 2 m.

The extremely rare and little-known Borneo river shark is large and stocky with a broadly rounded short snout and tiny eyes. The anal fin has a concave posterior margin, and the first dorsal fin is large and solid.

Coloration is greyish with a conspicuous dusky blotch on each flank and pectoral fin base.

Reproduction is presumed to be viviparous.

References

* Compagno, Dando, & Fowler, "Sharks of the World", Princeton University Press, New Jersey 2005 ISBN 0-691-12072-2