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Two New Proschizorhynchus Species from the Coast of Massachusetts, USA (Turbellaria, Kalyptorhynchia) 1
Author(s) -
Doe David A.
Publication year - 1974
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.1463-6409.1974.tb00808.x
Subject(s) - biology , turbellaria , stylet , taxonomy (biology) , penis , anatomy , major duodenal papilla , ejaculatory duct , zoology , seminal vesicle , prostate , genetics , cancer
Proschizorhynchus nahantensis sp. n. and Proschizorhynchus papillatus sp. n. are described and their taxonomy discussed. P. nahantensis is characterized by its penis papilla which has a proximal spherical and distal tubular portion. A simple stylet is present. The female system is distinguished by the external opening of the vagina and the prominent bursal mouthpiece. P. papillatus is distinguished by the two muscle layers of the copulatory organ, the large straight stylet in the penis papilla, a single gonopore and uterus. Notes on the ecology of the species are included. Views are given on the taxonomy of the genus Proschizorhynchus Meixner, 1928.