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Two new Mesostoma species (Turbellaria, Rhabdocoela) from Australia
Author(s) -
KOLASA JERZY,
SCHWARTZ STEVEN S.
Publication year - 1988
Publication title -
zoologica scripta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.204
H-Index - 64
eISSN - 1463-6409
pISSN - 0300-3256
DOI - 10.1111/j.1463-6409.1988.tb00109.x
Subject(s) - biology , turbellaria , major duodenal papilla , zoology , penis , anatomy
Taxonomical descriptions and ecological records are given of two new species of Mesostoma from Australia: Mesostoma appinum sp.n. and Mesostoma magnum sp.n. Externally, M. appinum resembles other species of the M. lingua group, but internally the combination of a thin‐walled copulatory organ, a large penis papilla and the appearance of epithelium differentiates it from similar species. Mesostoma magnum is a large and darkly pigmented species. Its characteristic features include a large copulatory organ, follicular testicles and a differentiated atrium. Both species are efficient predators of mosquito larvae and Daphnia .