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A REVISION OF BENTHOBROOKULA CLARKE, 1961 (GASTROPODA, TROCHOIDEA) IN THE SOUTHWESTERN ATLANTIC OCEAN
1Division of Invertebrate Zoology, Museo de La Plata, Paseo del Bosque s/n, 1900, La Plata, Buenos Aires, Argentina; 2Departamento de Biologia Animal e Vegetal, Instituto de Biologia, Universidade do Estado do Rio de Janeiro, Avenida São Francisco Xavier 524, Maracanã, Rio de Janeiro, RJ, CEP 20550900, Brazil; and 3Departamento de Zoologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, CEP 21941570, Brazil
Correspondence: D. Zelaya; e-mail: dzelaya{at}museo.fcnym.unlp.edu.ar
A systematic revision of the species of Benthobrookula Clarke, 1961 from the Southwestern Atlantic Ocean was carried out. The globose protoconch, sculptured with a reticulate pattern, is recognized as a diagnostic character for the genus. Benthobrookula exquisita Clarke, 1961 and B. powelli Clarke, 1961 are redescribed and Cyclostrema calypso Melvill & Standen, 1912, Brookula pfefferi Powell, 1951 and Brookula strebeli Powell, 1951 are redescribed and allocated to Benthobrookula. Benthobrookula strebeli is validated on the basis of the study of topotypical specimens. Two new species are described: Benthobrookula argentina from South Georgia and Benthobrookula paranaensis from off Brazil. A new allocation of Scalaria brevis d'Orbigny, 1840 to Benthobrookula is proposed.
(Received 14 October 2004; accepted 20 May 2005)
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