RESEARCHES IN HELMINTHOLOGY AND PARASITOLOGY. 49 



Body yellowish white, posterior to ventral acetabulum sublinear, 

 or compressed fusiform, subacute ; neck cylindrical, translucent. 

 Ventral acetabulum two to three times larger than the oral, cup- 

 shaped. 



Length i V2 to 4 lines ; breadth i-5th to Y2, line, 



Hab. — Urinary bladder of Raiia plpiens, Salamandra iiiaculata, 

 and Sala»/a)/dra {^Atnby stoma) rubra. 



7. Disfoi/iKi)/. Variegatuni. — Rudolphi,Syn. Ent., p. 90 ; Dujardin, 

 Hist. Nat. des Helm., p. 416 ; Diesing, Syst. Helm., p. 354 ; Mo7w- 

 stomuni eUipticiim, Rud. Entoz. Syn., p. 84 ; Bremser, Icon. Helm., 

 pi. 8, fig. 12-14 ; Diesing, Syst. Helm., p. 322. 



Body soft, oblong oval, slightly antero-posteriorly compressed ; 

 integument translucent, with the black oviduct, white ovary, and 

 brownish or yellowish intestine visible ; convex upon the under sur- 

 face ; posteriorly dilated, obtuse. Mouth small, round, with a thick 

 crenated lip, subterminal. Male generative aperture immediately 

 behind the mouth. Ventral acetabulum very small, round, i % lines 

 to the month. 



Length i to 4 lines ; breadth of largest anteriorly i line, poste- 

 riorly I \-2 lines ; thickness 3-4ths of a line. 



Hab. — Found frequently in numbers from i to 6 in the lungs of 

 Rayia pi pi ens. 



Remarks. — I was on the point of considering this entozoon as a 

 Mo)iosto)inim, when I was led to examine it more carefully by the 

 observation of Dujardin* that it had been described by authors 

 under the name of M. ellipticuni, because the ventral acetabulum is 

 very small and difficult to perceive. The latter I found without 

 difficulty in the position stated in the description. 



ECHINORHVNCHUS, MuLI.ER. 



8. EcJiinorhynclius Efuydis, n. s. — Body white, cylindrical, slightly 

 narrowed posteriorly, recurved, broadly annulated, smooth, posterior 

 extremity dilated into a small globular portion terminating abruptly 

 or in a short conical, obtuse point. Proboscis subglobular or oval, 

 with a slight transverse row of six strong booklets and a row in a 

 rudimentary condition ; neck very short. 



Length 2 to 8 lines ; breadth i-4th to i-3d of a line. 



Hab. — Seventeen individuals were obtained from the commence- 

 ment of the small intestine of Eniys gcographica. Received from 

 Prof. S. F. Baird. 



*Hist. Nat. des Helm., p. 416. 



