TY  - JOUR 
T1  - Physa acuta Draparnaud, 1805 (Gastropoda: Physidae): a study of topotypic specimens
JO  - Memórias do Instituto Oswaldo Cruz
A1  - Paraense, W Lobato
A1  - Pointier, Jean-Pierre
SN  - 0074-0276
UL  - 10.1590/S0074-02762003000400016
VL  - 98 
Y1  - 2003
PB  - Brasil 
ER  -