TWO NEW SPECIES OF THE GENUS ISLAMIA RADOMAN, 1973 FROM ITALIAN ISLANDS (PROSOBRANCHIA, HYDROBIIDAE) |
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| Authors: | BODON, MARCO MANGANELLI, GIUSEPPE SPARACIO, IGNAZIO GIUSTI, FOLCO |
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| Affiliation: | *Dipartimento di Biologia Evolutiva, Università di Siena Via Mattioli 4, I-53100 Siena, Italy; and **Piazzale Bellaria 6, I-90126, Palermo, Italy |
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| Abstract: | Two new Italian species of the genus Islamia (Prosobranchia:Hydrobiidae), one living in eastern Sicily (I. cianensis), andone on Elba Island (Tuscan Archipelago, Italy) (I. gaiteri)are described. The two species are distinguished on the basisof shell and anatomical characters, mainly those of the malegenitalia. I. cianesis n. sp. is characterized by a valvatoidshell and a penial lobe with internal band of glandular tissuenot distinct in its lower portion from the penis body but bulgingapically as a small knob. I. gaiteri n. sp. is characterizedby a planispiral shell and a small lateral penial lobe withoutinternal glandular tissue. (Received 20 December 1993; accepted 27 June 1994) |
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