Plesiophysa dolichomastix check for this species in other resources sp. n. - Mollusca Planorbidae - Central Brazil"/>
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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 97, No. 4, 2002, pp. 505-508
Bioline Code: oc02095
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 97, No. 4, 2002, pp. 505-508

 en Plesiophysa dolichomastix check for this species in other resources sp. n. (Gastropoda: Planorbidae)
W Lobato Paraense

Abstract

A new species of planorbid mollusc, Plesiophysa dolichomastix check for this species in other resources (Greek dolichos = long, mastix = flagellum), collected from Lagoa da Pedra, municipality of Santa Rosa, state of Goiás, Brazil (15°01'S, 47°13'W) is described. It is indistinguishable by the shell characters from the five congeneric species described so far: P. striata (Orbigny, 1841), P. granulata ("Shuttleworth" Sowerby, 1873), P. guadeloupensis ("Fischer" Mazé, 1883), P. ornata (Haas, 1938) and P. hubendicki Richards & Ferguson, 1962. It differs from the anatomically studied species in the following characters: about 50 ovotestis diverticula, against 12 in granulata, 100 in ornata, unstated in hubendicki; and length of flagella - about as long as the penial complex -, against about 1/3 to 1/6 in the other three.

Keywords
Plesiophysa dolichomastix check for this species in other resources sp. n. - Mollusca Planorbidae - Central Brazil

 
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