Translator Disclaimer
14 March 2011 A New Genus and Species of Weakly Armored Catfish from the Upper Mazaruni River, Guyana (Siluriformes: Loricariidae)
Jonathan W Armbruster, Donald C Taphorn
Author Affiliations +
Abstract

Paulasquama callis is a new genus and species of partially deplated ancistrin loricariid from the Waruma River, a tributary of the upper Mazaruni River, in northwestern Guyana. Paulasquama differs from all other described hypostomines by lacking plates in an oval area lateral to the mesethmoid, by having small plates in the dorsal series below the dorsal fin (less than half the typical size of other loricariids), and by having a fleshy keel on the preadipose plate and slightly anterior. The opercle of Paulasquama is sickle-shaped as in basal ancistrins, but has a posterior connection to the hyomandibula as in derived members of the Ancistrus clade.

2011 by the American Society of Ichthyologists and Herpetologists
Jonathan W Armbruster and Donald C Taphorn "A New Genus and Species of Weakly Armored Catfish from the Upper Mazaruni River, Guyana (Siluriformes: Loricariidae)," Copeia 2011(1), 46-52, (14 March 2011). https://doi.org/10.1643/CI-08-187
Received: 8 October 2008; Accepted: 1 September 2010; Published: 14 March 2011
JOURNAL ARTICLE
7 PAGES


Share
SHARE
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top