Papers/Abstracts

Simpsonichthys reticulatus n. sp. (Cyprinodontiformes: Rivulidae): a new annual fish from the Rio Xingu floodplains, Brazilian Amazon

Wilson J. E. M. Costa and Dalton T. B. Nielsen

aqua, International Journal of Ichthyology, pp. 119-122, Volume 7, Issue 3 – October 2003

Abstract

Simpsonichthys reticulatus n. sp., a small annual fish collected in the lower Rio Xingu floodplains, Brazilian Amazon, is described. It is similar to S. costai in having fan-shaped dorsal and anal fins in males, but differs from S. costai by its distinct colour pattern, the number of dorsal and anal fin rays and by the position of the dorsal fin origin in males. It is distinguished from all its congeners by its reticulate colour pattern and a black and light blue oblong spot on the dorsal fin in males.

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REFERENCES

Costa, W. J. E. M. 1995a. Pearl killifishes, the Cynolebiatinae: systematics and biogeography of a neotropical annual fish subfamily (Cyprinodontiformes: Rivulidae). TFH, Neptune City, NJ, USA, 128 pp.

Costa, W. J. E. M. 2001. The neotropical annual fish genus Cynolebias (Cyprinodontiformes: Rivulidae): phylogenetic relationships, taxonomic revision and biogeography. Ichthyological Exploration of Freshwaters, 12 (4): 333-383.

Costa, W. J. E. M. 2002. Monophyly and phylogenetic relationships of the neotropical annual fish genera Austrolebias and Megalebias (Cyprinodontiformes: Rivulidae). Copeia, 2002 (4): 916-927.

Costa, W. J. E. M. 2003. The Simpsonichthys flavicaudatus species group (Cyprinodontiformes: Rivulidae: Cynolebiatinae): phylogenetic relationships, taxonomic revision and biogeography. Ichthyological Exploration of Freshwaters, 14 (1): 31-60.

Hoedeman, J. J. 1958. Rivulid fishes of the Antilles. Studies on the Fauna of Curaçao and other Caribbean Islands, 32 (3): 112-127.

Taylor, W. R. & G. C. Van Dyke. 1985. Revised procedures for staining and clearing small fishes and other vertebrates for bone and cartilage study. Cybium, 9 (2): 107-109.

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