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Science 10 November 1967:
Vol. 158. no. 3802, pp. 795 - 796
DOI: 10.1126/science.158.3802.795
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Articles

Lithophagic Snail from Southern British Honduras

Alan K. Craig 1

1 Department of Geography, Florida Atlantic University, Boca Raton

A freshwater gastropod, Pachycheilus glaphyrus, responsible for unusual erosion in limestone has been located in southern British Honduras where it is abundant in streams flowing through areas of karst topography. These snails ingest algae that proliferate in solution grooves formed at the fluctuating air-water interface. Rasping action of the radula results in deepening of these grooves and appears to improve the algal habitat.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)