Number 83 



May 5, 1920 



OCCASIONAL PAPERS OF THE MUSEUM OF 

 ZOOLOGY 



UNIVERSITY OF MICHIGAN 



Ann Arbor, Michigan 



Published by the University 



A NEW SPECIES OF CLINOSTOMUM 



By Marion Elizabeth Lamont 



Zoological Laboratories, University of Wisconsin 



The genus Clinostomum was first described by Rudolphi in 

 1809. He found some parasites in the esophagus of a heron, 

 Ardea purpurea, and named them Clinostomum heterostomum. 

 Leidy (1856) redescribed the genus as follows: Hermaphroditic 

 flukes; genital pore with continguous male and female openings 

 situated posterior to acetabulum. Oral sucker without tentacles 

 or spines. Caudal extremity without retractile appendages. 

 Intestine simple, bifurcate. 



The described species are as follows: 



Genus 



Clinostomum 

 Clinostomum 

 Clinostomum 

 Clinostomum 

 Clinostomum 

 Clinostomum 

 Clinostomum 

 Clinostomum 

 Clinostomum 



Clinostomum 



Distomum 

 Distomum 



Species 



heterostomum 



complanatum 



marginatum 



foliiforme 



detruncatum 



sorbens 



dimorphum 



heluans 



lambitans 



gracile 



reticulatum 

 galactosomum 



Host 



Ardea purpurea 

 Ardea cinerea 

 Ardea cocoi 

 Ardea purpurea 

 Mycteria americana 

 Tantalus loculator 

 Ardea cocoi 

 Ardea coerulea 

 Ardea cocoi 

 /Pomotis vulgaris 

 \Perca flavescens 

 Siluris glanis 

 Labrax lineatua 



