RESEARCHKS IN HELMINTHOLOGY AND PARASITOLOGY. IO3 



162. Filaria Bispinosa, Diesing. Filari^ boce constridoris , Leidy. 

 Pr. A. N. S., V, 1 18. Found beneath the skin of the boaconstrictor. 



163. Filaria Cistiidinis. Body capillary, spirally involute attenu- 

 ated at the extremities. Head and tail obtusely rounded. Mouth 

 unarmed. Anus terminal. Length i}^ inches, breadth i -6th of a 

 line. 



One specimen was obtained by Mr. Schafhirt from the heart of 

 Cistudo carol ina. 



164. Filaria Amphiiimcc. Body cylindroid, attenuated towards the 

 extremities, spirally coiled, anteriorly truncate, posteriorly acute. 

 Length 6 lines, breadth i-5th of a line. 



Numerous specimens were found coiled up in the parietes of the 

 stomach of Amphiuma means, the individual of which had been so 

 long preserved in alcohol that the characters of the worms could be 

 partially determined only. 



165. Filaria Nitida,'L,e.\dy. Body filiform. Mouth large, round, 

 unarmed ; oesophagus one-fourth of the length of the body ; intes- 

 tine straight, capacious, with a short narrow rectum ; anus terminal, 

 with a short tubular prolongation. Tail sub-distinct, conical. Color 

 red. Length to 5 lines, breadth i-i2th of a line. 



Found coiled up in oval cysts in the peritoneum and abdominal 

 muscles of the Rana pipiens. 



166. Filaria Solotaria, Leidy. Mouth transverse, sub-elliptical, 

 papillated. Caudal extremity obtusely rounded. Anus terminal. 

 Length to 2 inches, breadth i-3d of a line. 



Coiled up in cysts between the tunics of the stomach and intes- 

 tines of Emys serrata and Chelonura serpentina. 



167. Filaria Rubra, Leidy, Capillary, anterior!}- truncated, pos- 

 teriorly obtusely conical, dark brownish red in color. Mouth trans- 

 verse, slightly bilabiate ; lips papillated. Anus terminal, transverse, 

 crescentic. Length to 45^ inches, breadth i-4th of a line. 



Frequently found in considerable number in the peritoneal cavity 

 of Labrax li7ieatus during the winter. 



168. Filaria Ouadrituberculata, Leidy. Body capillary, red in 

 color, anteriorly conical, unarmed. Mouth circular, with an ele- 

 vated, non-papillated, circular lip. Caudal extremitj' incurved, 

 conical, ending in a minute conical papilla, and having on each side 

 a pair of minute tubercles. Length 4 inches, breadth i-3d of a line. 



A single specimen was found by Mr. Schafhirt in the muscles of 

 the back of Anguilla vulgaris. 



169. Gordius Varius, Leidy. Pr. A. N. S., v, 262 (1851). 

 Gordiiis aquaticus of American authors. 



