NOTES ON THE FAMILY AMPULLARIIDAE (GASTROPODA: PROSOBRANCHIA) IN THE PHILIPPINES: I. DIGESTIVE, CIRCULATORY, AND EXCRETORY SYSTEMS
AbstractAÂ totalÂ ofÂ 232Â ampullariidÂ snailsÂ collectedÂ fromÂ 23Â sitesÂ coveringÂ 7Â islandsÂ inÂ theÂ Philippines were comparedÂ conchologicallyÂ andÂ 200Â alcohol-preservedÂ specimensÂ wereÂ dissectedÂ forÂ anatomical characteristics. Conchological comparison of the shells of the collected snails with that of identified lots from the Senckenberg Natur-museum, Frankfurt, Germany, the British Museum for Natural History, London, England, the Koninklijk BelgischÂ Instituut voor Natuurwetenschappen, Brussels, Belgium, andÂ the Rijksmuseum voor Natuurwetenschappen, Leiden, Netherlands, revealed the presence of 5 species in the collected samples. These are: P. conica, P. ampullacea, P. mainitensis, P. quadrasi, and P. vittala. The latter 3 species were previously reported as being indigenous to the Philippines. AsideÂ fromÂ characteristicsÂ ofÂ theÂ shell,Â the morphologyÂ ofÂ theÂ stomach mayÂ beÂ usefulÂ forÂ species discrimination. P. quadrasi and P. vittata, however, do not seem to differ anatomically from P. conica.
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