314 ON SOME TRKMATODK PARASITES OF AUSTRALIAN FROGS, 



Uterine loops mainly in front of the ovary. Eggs 0-042 mm. 

 long. 



Hosts: Limnodynastes dorsaUs and Hyla C(erulea, in the 

 intestine. 



Type-specimens in the Australian Museum, No. W.335. 



Seven of these worms were found in the intestine of Hyla 

 ccerulea, and two in Lim^iodynastes dorsalis. They are less 

 pointed at the ends than D. trypherus, and of stronger, more 

 robust form, with a much thicker cuticle. The average length 

 is 4-5 mm., and breadth 11 mm. The oral sucker varies from 

 0-245 to 0-318 mm. in diameter, while the ventral ranges from 

 0-179 to 0-245, the ratio between the two being 4:3. The 

 excretory vesicle is very voluminous (Figs. 49, 50), being much 

 wider than in J), trypherv^. It differs from that species, too, 

 in having the ovary (0-318 x 0-236 mm.) larger than the 

 testes (0-27 x 0-228 mm.), and placed in the middle line. The 

 testes are closer together. The yolk-glands consist of larger 

 follicles (0-083 x 0-05 mm.), which are more closely packed 

 than in the last species, and extend further forwards, reach- 

 ing the base of the oral sucker. 



DOLICHOSACCUS DIAMESU S,* Sp.n. 



(Figure 8). 



Diagnosis. — Small, elongated, fairly delicate worms, becom- 

 ing narrower towards the extremities. Integument fairly 

 thick, spiny; ratio of oral to ventral sucker, 4:3. Excretory 

 vesicle very vide and long. Genital pore just behind the 

 intestinal fork. Testes smaller than the ovary, in the middle 

 line, in the middle of the posterior half of the body, with 

 their ends obliquely over-lapping. Ovary close behind the ven- 

 tral sucker and laterally placed. Copulatory organs and 

 Laurer's canal as in the genus. Vitelline glands of compara- 



* Sta/yefTO?, intermediate, 



