24 
Only the Sarcoptes and the Symbiotes are commonly found 
on dogs and cats. 
(a) Sarcoptes. In man, in dogs, in cats (in the skin). 
(b) Symbiotes (Choriopties). In the ear only. 
(ad) Demodex. Follicular mange. 
Life history of each was described. 
VERMES. 
The worms of the dog may be divided into two classes— 
round and flat. 
Round worms or NEMATODES. 
Ascaris Marginata and Ascaris Mystac (of cat). In stomach 
and bowel. 
Anchylostomum Trigonocéphalum. 
Trichocephalus Depressinsculus. 
Spiroptera Sanguinolenta. 
liver. 
Kustrongylus Gigas. 
Strongylus Vasorum and Spusillus. 
vessels. 
Filarice immitis. 
In the small intestine. 
In the coecum. 
In tumours of the stomach and 
In the kidney. 
In the heart and blood 
In the heart and blood vessels. 
Life history of each was shortly described. 
VERMES. 
CESsTODES. 
Intermediate host and habitat. 
(T. Serrata, about 3ft., 34 to Cyst. pisiformis. Hares 
| 38 hooks in two rows. and wild rabbits. 
T. Marginata, 2 yards, 30 to Cyst. Tennicollis. Vari- 
44 hooks, segments short ous parts of oxen. 
and broad. 
| T. Coenurus, 2-3ft., 22 to 32 Coenurus Cerebralis. 
Dog- hooks Brain of sheep. 
| T. Echinococcus, 5 m.m., 28 Echinococcus Veterino- 
to 50, 3 segments. rum. Livers of ox 
and man, 
T. Canina (dipylidium canium), CryptoTrichodectis. Dog 
5-25in., 4 rows hooks, 2 louse and flea. 
L pores. 
Cat—T. Crassicollis, 20in., 34. Cyst. fasciolaris. Livers 
of rats and mice. 
A short life history of each was given. 
