PARASITES OP ANIMALS. 321 



ADDITIONAL OBSERVATIONS ON THE PARASITES 

 OF MAN AND DOMESTIC ANIMALS. 



BY A. E. VERRILL. 



In the following pages some species of parasites are added 

 to those enumerated in the last report, as found in the domes- 

 tic animals. Many additional facts have also been ascertained 

 concerning the habits and history of several of the species 

 previously described, and some of the more important of these 

 discoveries will be noticed here. 



Internal Parasites of Man. 



The name of the following species in the list, (Report for 

 1870, p. 170,) should be changed to the earlier one given by 

 Diesing. BiUiarzia hcematobia Cobbold, 1864, should be 

 Gyncecopliorus hcematohius Diesing, 1858.* 



Internal Parasites of Cattle. 



Asearis lumbricoides Linn. Small intestine. This species, 

 which was accidentally omitted from the list (page 176) of the 

 last report, but mentioned on page 235, should be added. It 

 is regarded as perfectly identical with the common " round- 

 worm" of man. 



Internal Parasites of the Horse. 



The following species should be added to the list, (p. 177.) 

 Onchocerca reticulata Diesing. A small nematode worm, 



resembling TricJmia, found in the muscles and tunics of the 



arteries. 

 Pentastoma Setlenii Diesing. Found in the eye. 



Internal Parasites of the Hog. 



The names of the two following species should be changed.. 

 Strongylus dentatus should be Sclera storamn dentatuni Rud. 

 Sclerostomum pinguicola should be Stephanurus dentatus 

 Diesing. 



* Revision dcr Myzhelminthen ; Trematoden : Sitz. Akad. der Wissenschaf- 

 tcn, 1858, p. 356. 



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