OCCURRENCE OF A SEXUAL POPULATION OF DUGESIA (GIRARDIA) TIGRINA, A FRESH-WATER PLANARIAN NATIVE TO AMERICA, IN A LAKE OF SOUTHERN ITALY

Authors
BENAZZI M
Citation
M. Benazzi, OCCURRENCE OF A SEXUAL POPULATION OF DUGESIA (GIRARDIA) TIGRINA, A FRESH-WATER PLANARIAN NATIVE TO AMERICA, IN A LAKE OF SOUTHERN ITALY, Bollettino di zoologia, 60(1), 1993, pp. 129-130
Citations number
NO
Categorie Soggetti
Zoology
Journal title
Bollettino di zoologia → ACNP
ISSN journal
03734137
Volume
60
Issue
1
Year of publication
1993
Pages
129 - 130
Database
ISI
SICI code
0373-4137(1993)60:1<129:OOASPO>2.0.ZU;2-D
Abstract
Dugesia (Girardia) tigrina, a freshwater planarian native to America a nd able to reproduce either sexually or by fission, has been casually introduced into Europe and various other areas of the world. In most c ases, the immigrant specimens are fissiparous and, exceptionally, sexu al. One sexual population, collected from the Lake of Monticchio in So uthern Italy, is here described together with biogeographycal and kary ological data.