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Record of the concomitant cross copulation by Phyllocaulis boraceiensis Thomé (Mollusca, Gastropoda, Veronicellidae)

Two specimens of Phyllocaulis boraceiensis were found in concomitant cross copulation on 19.VII.1997. Each was in the "U"-shape position. Both specimens were the same age. One was 100 mm. long and weighed 14.53 g.; the other was 129 mm long and weighed 16.08 g. Thirty-one days later the largest one laid 11 eggs; all hatched 64 days later. The other died in October, 1997 without laying.

Concomitant cross copulation; Phyllocaulis boraceiensis; Veronicellidae


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