DemodicideB. 109 



P. Communis v. Ovis. Sheep. General surface. 

 P. Communis v. Caprae. Goat. General surface. 

 P. Communis v. Cuniculi. Rabbit. General surface. 



Genus : SymbioTES (syra together, bios life). 



Species : Symbiotes Communis. On one part ; usually limbs ; 

 foot mange. Male has two caudal lobes. 



Varieties : S. Communis v. Equi. Horse. Feet and legs. 

 S. Communis v. Bovis. Ox. Feet and legs. 

 S. Communis v. Ovis. Sheep. Feet and legs. 

 S. Communis v. Caprae. Goat. Feet and legs. 

 S. Communis v. Cuniculi. Rabbit. Ear. 

 Symbiotes Auricularum. (Ecaudatus). Male with- 

 out caudal lobes. In concha, dog, cat, ferret. 

 Symbiotes Setifer (.seta bristle). Fox, hyena (dog ?). 

 Symbiotes Avus. Ancestral S. Sparrow. 



Family DEMODICID^. 



Very small, .soft, hairless, wormlike acarina. IvCgs rudimen- 

 tary, abdomen prolonged. Inhabit sebaceous and hair follicles. 

 Mammals. 



Genus : Demodex. 



Species : D. FoUiculorum. D. of Follicles. Steatozoon F. 



Varieties : D. FoUiculorum v. Hominis. Man. Mostly on 



face. 

 D. FoUiculorum v. Canis. Dog. 



D. FoUiculorum v. Cati. Cat, nose, ear. 



D. FoUiculorum v. Caprae. Goat. 



D. FoUiculorum v. Suis. Pig. 



D. FoUiculorum v. Ovis. Sheep. Meibomian glands. 



D. FoUiculorum v. Bovis. Ox. Muzzle, neck and 



shoulder. 



D. FoUiculorum v. Equi. Horse. Meibomian glands. 



LINGUATULID.<E (lingua tongue). PENTASTOMID^ 



(pente five, stoma mouth). 

 Vermiform arachnidse ; body annulated : mouth with two pairs 

 booklets ; parasitic on vertebrates ; mature and larval forms in 

 different hosts. 

 Genus ; LiNGUATULA. 



L. Taenioides (tsenia shaped). Mature form in 

 nasal chambers and sinuses of dog, horse, mule, 

 wolf, sheep, goat, man. 



