ART. 13 TREMATODE PARASITES OF MARINE MAMMALS PRICE 9 



eluded in these groups ; in other f amihes, however, this does not hold 

 true. So far as the family Fasciolidae is concerned, G. oblonga is 

 the only species known to possess these structures ; it appears, there- 

 fore, that anal openings in some species are characters of specific 

 rather than generic or family significance. 



CAMPULA PALLIATA (Looss, 1885) Looss, 1901 

 Plate 2, Figures G-7 



Syno7iy7ns. — Distonvumi palliatum Looss, 1885, pp. 390-427; 

 Brachycladiwni palliatum (Looss, 1885) Looss, 1899, p. 558; Glado- 

 coeliu/m palliatum (Looss, 1885) Stossich, 1892, pp. 10-11. 



Description. — Campula: Body elongated, 9 mm to 10 mm long by 

 1.5 mm to 2 mm wide and 750/x to 1 mm thick; the anterior end is 

 more rounded than the posterior end, and there is a definite constric- 

 tion of the body in the vicinity of the acetabulum. Cuticle armed 

 with closely set rows of pointed spines, 62ju, to 76/i, long by 5/i, to 8/x 

 wide, which completely cover the body. Suckers about equal in size 

 and situated 2.5 mm to 3.5 mm apart. Pharynx ovoid, 380/x long by 

 293;u wide; esophagus 540jt* wide. The intestinal tract consists of a 

 pair of anteriorly directed ceca, one on each side, which extend to the 

 level of the oral sucker, and a pair of posteriorly directed ceca, 

 which extend to the posterior end of the body, both pairs of ceca 

 being provided with short median and lateral diverticula. Excre- 

 tory vesicle tubular, extending anteriorly dorsal of testes and di- 

 viding into two branches. Genital aperture median and situated 

 a short distance cephalad of acetabulum. Cirrus pouch strongly 

 muscular and situated mostly in front of acetabulum ; it contains the 

 seminal vesicle, ejaculatory duct, and cirrus. Testes lobed, tandem 

 in position, situated in posterior part of middle third of body. 

 Ovary irregular in outline, 489/x in greatest diameter, situated to left 

 of median line and cephalad of anterior testis; seminal receptacle 

 small ; Laurer's canal present. Vitellaria abundantly developed and 

 consisting of grapelike follicles, which extend from region of 

 pharynx to posterior end of intestinal ceca. Uterus consists of 

 numerous coils situated dorsal to acetabulum. Eggs 59/j, long by 43ju, 

 wide, ellipsoidal, the opercular pole blunter than the posterior pole. 



Host. — Delphinus delfliis. 



Location. — Liver (bile ducts). 



Distribution. — Europe. 



CAMPULA DELPHINI (Poirier, 1886) Bittner and Sprehn, 1928 



Plate 2, Figures 8-10 



Synonyms. — Distonvwin delphini Poirier, 1886, pp. 34—36; Clado- 

 coelium delphini (Poirier, 1886) Stossich, 1892, p. 10; Brachycla- 

 diuTn, delphini (Poirier, 1886) Looss, 1899, p. 558. 



