Resumen

ANDRADE, Roberto Milward de  y  CARVALHO, Osmar S.. Anomalies in Biomphalaria straminea a whorl (Dunker, 1848) kept in laboratory (Pulmonata, Planorbidae). Rev. Saúde Pública [online]. 1973, vol.7, n.3, pp. 283-284. ISSN 0034-8910.  http://dx.doi.org/10.1590/S0034-89101973000300008.

The occurrence of 90 Biomphalaria straminea shells displaying marked deformation in their last whorl, is reported. The referred to planorbid population originates from a strain collected, about three years ago, in Curvelo, MG (Brazil), and which has been kept in laboratory glass aquarium.

Palabras llave : Biomphalaria straminea [Anomalies]; Planorbidae; Schistosomiasis.