CCELHELMIXTHES 223 



Gon^ylonema scutata. Hosts, sheep, cattle. P. 247. 



Filaria labiato-papillosa. Hosts, cattle, deer. P. 248. 



Dirofilaria iinmitis. Host, dog. P. 248. 



Spiroptera sangiiinolenta. Host, dog. P. 250. 



Ardiienna strongylina. Host, hog. P. 251. 



Physocephahis sexalatiis. Host, hog. P. 252. 



Dispharagus spiralis. Host, poiiltiy. P. 254. 



D. hamulosiis. Host, poultry. P. 254. 



D. nasiitus. Host, poultiy. P. 254. 



Tetrameres fissispina. Host, poultry. P. 254. 

 Family (e) Strongylida. P. 255. 

 Genus and Species: 



Stephanurus dentatus. Host, hog. P. 295. 

 Subfamily (a) Metastrongylins AVoi-ms of the respiratory tract. 

 P. 256. 

 Genus and Species: 



Dictj'ocaulus filaria. Hosts, sheep, goat. P. 256. 



Synthetocaulus rufescens. Hosts, sheep, goat. P. 257. 



S. capillaris. Hosts, sheep, goat. P. 258. 



Dictyocaulus yiviparous. Host, cattle. P. 259. 



jMetastrongylus apri. Host, pig. P. 260. 



M. breyiyaginatus. Host, pig. P. 260. 



Dictyocaulus arnfieldi. Host, equines. P. 261. 



Htemostrongylus yasorum. Host, dog. P. 261. 



Synthetocaulus abstrusus. Host, cat. ?. 262. 

 Subfamily (6) Trichostrongylina. Woi-ms of the stomach and 

 intestine. P. 268. 

 Genus and Species: 



Hiemonchus contortus. Hosts, sheep, goat, cattle. P. 268. 



Cooperia cui'ticei. Hosts, sheep, goat. P. 268. 



Ostertagia nuu-shalli. Host, sheep. P. 269. 



Trichostrongylus Lnstabilis. Hosts, sheep, goat. P. 271. 



Ostertagia ostertagi. Host, cattle. P. 272. 



Nematodirus filicollis. Hosts, cattle, sheep, goat. P. 273. 



Cooperia oncoi;)hora. Hosts, cattle, sheep. P. 275. 

 Subfamily (c) Strongylinae. Worms of the large and small in- 

 testines. P. 280. 

 Genus and Species : 



Q^sophago.stomum columbianum. Hosts, .sheep, goat. P. 

 281. 



O^. yenulosum. Hosts, sheep, goat. P. 282. 



(E. radiatum. Ho.st, cattle. P. 285. 



(E. subulatum. Host, hog. P. 287. 



Chabertia oyina. Host, sheep. P. 287. 



