A New Species of Miniature Fish of the Genus Microphilypnus Myers, 1927 (Gobioidei: Eleotridae) from the Upper Rio Negro Basin, Amazonas, Brazil

Author(s)

Caires, Rodrigo A. ^[1] ; Toledo-Piza, Monica ^[2]

Affiliation

^[1] Univ Sao Paulo, Museu Zool, Secao Peixes, Ave Nazare 481, BR-04299970 Sao Paulo, SP - Brazil

^[2] Univ Sao Paulo, Inst Biociencias, Dept Zool, Rua Matao, Travessa 14, 101, BR-05508090 Sao Paulo, SP - Brazil

• Document type: Journal article
• Source: Copeia; v. 106, n. 1, p. 49-55, MAR 2018.
• Web of Science Citations: 1

Abstract

A new species of the eleotrid genus Microphilypus from the Upper Rio Negro basin is described herein. It differs from all congeners in the presence of 5-6 arched rows of melanophores on the abdominal region, posterior to the base of the pelvic fins, followed by six large irregularly oval black blotches, with the tips of the three posteriormost blotches visible in lateral view; a dark teardrop-shaped blotch on the caudal peduncle, extending to the base of the ventral caudal rays; five light brown blotches along the dorsal profile of the body, between the origin of the second dorsal fin and the caudal peduncle; and the poorly developed laterosensory system on the head, with horizontal rows of head papillae b and d absent. A key to the species of Microphilypnus is presented. (AU)

• FAPESP's process: 11/13735-3 - Collecting, maintaining and preserving specimens of miniature fishes and obtaining ontogenetic series of fishes: the importance of these steps for ensuring successful results in studies of the process of miniaturization
• Grantee: Mônica de Toledo-Piza Ragazzo
• Support Opportunities: Research Grants - Visiting Researcher Grant - International
• FAPESP's process: 11/50282-7 - An inventory of the Characiform fish fauna (Teleostei, Ostariophysi) from South America
• Grantee: Naercio Aquino Menezes
• Support Opportunities: BIOTA-FAPESP Program - Thematic Grants