22 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 81 



26/x long, on each side between the larger spines of the ventral 

 lobes and the smaller marginal spines. Pharynx 145/a long by 

 114/x wide, situated almost immediately caudad of the oral sucker. 

 Testes globular 159/a in diameter, tandem in position and situated 

 in the posterior part of the body. Viteliaria lateral, not extending 

 anteriorly beyond acetabulum. 



Host. — Phoca vitulina. 



Location. — Intestine. 



Distribution. — Europe (Berlin, Germany). 



Remarks. — Rudolphi (1819) reported finding two specimens of 

 this species in the above host in Berlin. Braun (1901a) redescribed 

 this form on the basis of the original material and stated that the 

 specimens were immature. The above description is compiled 

 largely from that given by Braun. 



It is not certain that this species belongs to the genus Echinostoina., 

 sensu stricto. The arrangement of the spines of the cej)halic collar 

 tends to exclude it from the genus, but the other characters are not 

 sufficiently well described to permit a definite generic assignment 

 at present. 



Genus STEPHANOPRORA Odhner, 1902 



Synonyms. — Mesorchis Dietz, 1909a, p. 183; Monilifer Dietz, 

 1909a, p. 183. 



Generic diagnosis. — Echinostomatidae : Body elongated and sub- 

 cylindrical. Cuticle of anterior part of body armed with spines. 

 Oral sucker surrounded by a well-developed reniform collar bearing 

 a single row of spines, which is interrupted dorsally by a space 

 about as wide as oral sucker. Acetabulum situated approximately 

 one-fourth of body length from anterior end. Cirrus pouch well 

 developed, containing seminal vesicle, pars prostatica, and a short, 

 strong cirrus. Testes tandem in position, situated near equator 

 of body. Ovary pretesticular. Viteliaria almost filling posttesticu- 

 lar part of body and extending anteriorly to anterior testis. Uterus 

 moderately long and containing relatively few eggs. 



Ty^e species. — Stepkanoprora omata Odhner, 1902. 



STEPHANOPRORA DENTICULATA (Rudolphi, 1802) Odhner, 1910 

 Plate 7, Figures 20-30 



Synonyms. — Fasciola denticulata Rudolphi, 1802, p. 91 ; Distoma 

 denticulatwn (Rudolphi, 1802) Rudolphi, 1809, p. 424-425; Echin- 

 ostama denticulatum (Rudolphi, 1802) Cobbold, 1860, p. 36; 

 Echinostoma {Mesorchis) denticulatmn (Rudolphi, 1802) Dietz, 

 1909a, p. 183; Mesorchis denticulatus (Rudolphi, 1802) Dietz, 1909b, 

 p. 31. 



