This site is not maintained. Click here for the new website of Richard Dawkins.

Dawkinsia, new genus

Etymology. The genus is named for Richard Dawkins, for his contribution to the public understanding of science and, in particular, of evolutionary science

A synopsis of the South Asian fishes referred to Puntius
(Pisces: Cyprinidae)


The tropical Asian cyprinid genus Puntius, which contains some 120 valid species, has long been suspected to be polyphyletic. Here, through an examination of external morphology, osteology, and analysis of 16S ribosomal RNA and cytochrome b gene fragments from 31 South Asian species hitherto referred to Puntius, we show that these fishes represent at least five lineages recognisable as genera. Puntius sensu stricto has the rostral barbels absent; last unbranched dorsal-fin ray weak or strong, smooth; and lateral line complete, with 22-28 pored scales. Systomus possesses maxillary and rostral barbels; last unbranched dorsal-fin ray stiff (‘osseous’), serrated; and lateral line complete, with 27-34 scales. Three new genera are proposed: Dawkinsia (type species Leuciscus fila mentosus) is distinguished by lacking rostral barbels; having the last unbranched dorsal-fin ray smooth; lateral line complete, with 18-22 scales; and a juvenile colour pattern that includes three black bars on the body. Dra­vidia (type species Cirrhinus fasciatus) is distinguished by having both rostral and maxillary barbels present; lateral line complete, with 18–26 pored scales; dorsal fin with 4 unbranched and 8 branched rays, last unbranched dorsal-fin ray smooth; infraorbital 3 deep, partly overlapping the preoperculum; and free uroneural and postepiphysial fontanelle absent. Pethia (type species Barbus nigrofasciatus) is distinguished by having the last unbranched dorsal-fin ray stiff, serrated; infraorbital 3 deep, partially overlapping preoperculum; rostral barbels absent; maxillary barbels absent or minute; a black blotch on the caudal peduncle; and frequently, black blotches, spots or bars on the side of the body. The identities of Puntius sophore and Systomus immaculatus are clarified through the designation of neotypes; a lectotype is designated for Neolissochilus bovanicus; and precedence is given to the spelling bovanicus over bovianicus.
Link to pdf

TAGGED: ANNOUNCEMENTS, BIOLOGY, RICHARD DAWKINS


RELATED CONTENT

Does this set a record for smug...

Richard Dawkins - RichardDawkins.net Comments

Does this set a record for smug nastiness?

Playboy Interview with Richard Dawkins

Chip Rowe - Playboy Comments

Playboy Interview with Richard Dawkins

Richard Dawkins gets it right. Sarah...

Eric MacDonald - Choice in Dying Comments

Richard Dawkins gets it right. Sarah Wollaston misunderstands.

[update to a previous article] Richard...

Hamish MacDonnell - The Independent Comments

Some church groups have expressed disappointment at the decision to invite leading atheist Richard Dawkins to speak at an island book festival.

Rats Manipulated to be Attracted to Cats

Richard Dawkins - RichardDawkins.net Comments

Rats Manipulated to be Attracted to Cats

WALK DARWIN’S TREE OF LIFE ~ 25 - 26...

- - Ancestors Trail Walk Comments

WALK DARWIN’S TREE OF LIFE ~ 26 AUGUST 2012 - event begins on Saturday 25 August

MORE

MORE BY ROHAN PETHIYAGODA, MADHAVA MEEGASKUMBURA AND KALANA MADUWAGE

MORE

Comments

Please Login to RDFRS to Comment

Sign in to RDF

blog comments powered by Disqus