— 125 — 



Intermediate lips are absent. Alimentary tract simple, without 

 coeca. The caudal end of the male is provided laterally with 

 a wide alate bursa; 2 equal spicula of a very tender struc- 

 ture; gubernaculum absent. Pre^snal papillae are not numerous 

 (7 pairs). They all sit on stalk«, their free end having the 

 character of a crown of a double-flower, as it consists of a 

 whole complex of petal-shaped lobes. The postanal papillae 

 are sedentary. The ve-ntral surface of the caudal end of the 

 male is marked both in longitudinal and in transverse direc- 

 tions with a series of furrows which form a fine mosaic 

 network of stellate loops. This network partly passes to the 

 anterior part of the bursa. The genital aperture of the female 

 is in the anterior half of the body. Large oval eggs. Parasitic 

 in the alimentary canal of Amphibia. Type and meanwhile 

 only species: Orneoascaris chrysanthemoicles n. g. n. sp. from 

 the intestine of Biifo sp. 



9. Orneoascaris chrysanthemoides nova sp. 



Host: Bufo sp. 



Occurence: intestine. 



Body cylindrical, slightly narrowed at both extremities. 

 Cuticle finely striated transversely. Cephalic end provided 

 with three large lips of hexangular shape with two lateral 

 furrows. The interior surface of the lip is characterized by a 

 furrowed recess very sharply expressed. The pulp has a roun- 

 ded anterior margin its right and left lobes adjoining each 

 other in the region of the median line. The dentated margin 

 is present, and follows the periphery of the lip on all its extent; 

 some denticles are very large, on account of which it was 

 possible to mark the number of all of them, and their relative 

 dimensions. The denticles situated near the anterior angles 

 of the lips are especially large. On the exterior surface of 

 each lip are situated 2 large oval papillae. Width of dorsal 

 lip=0,374 mm., its length=0,221 mm. The oesophagus is 

 bimple, without traces of any diverticula. 



Male: 28 — 30 mm. long, 0,8 mm.— maximum width. Length 

 of oesophagus=5,l mm. (=V6 part of body-length). Width 

 of body immediately behind the lips reaches 0,34 mm., in the 

 region of the end of the oesophagus=0,68 mm., in the middle 

 part of the body=0,8 mm., in the region of anus (together 



