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| New cascudinhos from southern Brazil : systematics, endemism, and relationships (Siluriformes, Loricariidae, Hypoptopomatinae). American Museum novitates ; no. 3254 |
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| Title: | New cascudinhos from southern Brazil : systematics, endemism, and relationships (Siluriformes, Loricariidae, Hypoptopomatinae). American Museum novitates ; no. 3254 |
| Authors: | Reis, Roberto E. Schaefer, Scott Allen, 1958- |
| Issue Date: | 1998 |
| Publisher: | New York, NY : American Museum of Natural History |
| Series/Report no.: | American Museum novitates ; no. 3254 |
| Abstract: | "Epactionotus, a new genus of the loricariid catfish subfamily Hypoptopomatinae with three new species, and a new species of Eurycheilichthys are described from southern Brazil. Epactionotus is diagnosed among genera of the Hypoptopomatinae by the posterior position of the dorsal fin and morphology of its internal supports and by absence of an expanded fleshy flap on the dorsal surface of the first pelvic-fin ray of males. The three Epactionotus species are each endemic to a very limited geographic area along the Atlantic coast of southern Brazil. Epactionotus bilineatus n. sp. is restricted to the rivers Maquiné and Tres Forquilhas in northeastern Rio Grande do Sul State, E. itaimbezinho n. sp. is endemic to the rio Mampituba along the border between Rio Grande do Sul and Santa Catarina States, and E. gracilis n. sp. is endemic to the rio Araranguá drainage of southern Santa Catarina State. These new species are distinguished based on morphometric comparisons, color pattern, and arran... |
| Description: | 25 p. : ill. ; 26 cm. Includes bibliographical references (p. 23-25). |
| URI: | http://hdl.handle.net/2246/3154 |
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