Article
Plesiophysa dolichomastix sp. n. (Gastropoda: Planorbidae)
Registro en:
PARAENSE, W. Lobato. Plesiophysa dolichomastix sp. n. (Gastropoda: Planorbidae). Memórias do Instituto oswaldo Cruz, Rio de janeiro, v. 97, n. 4, p. 595-508, June 2002.
0074-0276
10.1590/S0074-02762002000400009
1678-8060
Autor
Paraense, W. Lobato
Resumen
A new species of planorbid mollusc, Plesiophysa dolichomastix (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.