Topic
Krobia
About: Krobia is a research topic. Over the lifetime, 2 publications have been published within this topic receiving 4 citations.
Papers
TL;DR: Krobia xinguensis represents a considerable range extension of the genus from the Guianas and northern tributaries of the lower Amazon, into a major south bank Amazon tributary.
Abstract: Krobia xinguensis is described from localities in the headwaters and in the lower part of the rio Xingu. It is distinguishedfrom the other two species in the genus, K. guianensis and K. itanyi, primarily by deeper caudal peduncle, and details ofthe colour pattern, including contrasting interorbital stripes and a small dark spot anteriorly on each side of the lower jaw. Krobia xinguensis represents a considerable range extension of the genus from the Guianas and northern tributaries of the lower Amazon, into a major south bank Amazon tributary.
5 citations
TL;DR: The presence of Krobia petitella n.
Abstract: Krobia petitella , new species, is described from the Berbice River drainage of northeastern Guyana. It is distinguished from all other described species of Krobia ( K. guianensis Regan , K. itanyi Puyo and K. xinguensis Kullander) as well as the closely related ‘ Aequidens’ potaroensis and ‘ A’. paloemeuensis by tubed scales of the upper lateral line extending caudally into a line bisecting the lateral band blotches posterior to the mid-lateral spot. Krobia petitella n. sp. can be further diagnosed by the anterior lateral band spots lying immediately ventral to the upper lateral line, instead of being separated from the upper lateral line by a complete row of scales in all other species. Additionally, K. petitella n. sp. possesses a unique lateral coloration pattern formed by the combination of six vertical bars and four lateral band spots (vs. K. itanyi 5 bars/3 or 4 spots, K. guianensis 5/5, K. xinguensis 7/6, ‘ Aequidens’ potaroensis 6/6, ‘ A’. paloemeuensis 5/5). The presence of Krobia petitella n. sp. in reaches of the Berbice River drainage in the Upper Demerara–Berbice region provides a novel locality for the genus in the Guianas and suggests the Berbice River has been isolated from the rest of nearby Guianese basins, particularly the Essequibo and the Corantijn.
3 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2013 | 1 |
| 2012 | 1 |