I07 



(fig.) ; var. cunicuU, 17 (fig.), 21, 

 44; var. equi, 17 (fig.), 44; 

 var. ovis, 17 (fig.), 18 (fig.), 

 19 (fig.), 44 ; P. Mppotis, 44 ; 

 P. natalensis, 16, 17 (fig.) 



Psoroptio mange, in cattle, 21 ; 

 of goat, 21 ; of horse, 34, 44 ; 

 of rabbit, 21 ; of sheep, 17 



Pterolichus bicaudatus, 43 (fig.), 44 

 (fig.), 64; P. obtusus, 41 (fig.), 

 42 (fig.), 64 ; P. sculpturatus, 43 

 (fig.). 44 (fig.), 64 ; Pterolichus 

 sp. 45 (fig.), 46 (fig.), 47 (fig.) 



Pterophagus strictus, 65 



Ptilonyssus nudus, 93 



Rabbit, Gheyletiella of, 56 (fig.) 

 74 ; Listrophorus of, 69 ; Noto- 

 edrus and notoedric mange of, 28 

 (fig.), 29 (fig.), 50 ; Psoroptes and 

 psoroptio mange of, 17 (fig.), 21, 

 44 ; Sarcoptes and sarcoptic 

 mange of, 33 



Raillietia, 91 ; E. auris, 84 (fig.), 

 85 (fig.), 87 (fig.), 91 



Rats, 30, 51, 74, 77, 79, 87, 89, 91 



Red mite of fowl, 87 



Rhinonyssus, 93 



Bivoltasia bifurcata, 65 



Sarcopterinus, 76 ; S. nidulans 76 

 Sarcoptes, 11, 24,i39; S. scabiei, vax , 



canis, 25 ; var. caprae, 30 ; 



var. equi, 26 (fig.), 27 (fig.), 34; 



var. ovis, 29 ; var. suis, 28 

 Symbiotes, 15, 16 (fig.), 22 (fig.) 

 Sarcoptic mange, of camel, 30 ; 



of cattle, 25 ; of dog, 25 ; of 



dromedary, 30 ; of goat, 29 ; 



of horse, 34 ; of pig, 25 ; of 

 rabbit, 33 ; of sheep, 28 

 Sarcoptidae, 13, 15 

 Sarcoptoidea, 15 

 Scab in sheep, 17 

 Scaly-leg, 52 



Schongastia americana, 60 (fig.), 78 

 Scutacarus, 94 



Sheep, Choriopies or Symbiotes of, 

 22 (fig.), 23 ; Demodex and demo- 

 dectic mange of, 63 (fig.), 84 ; 

 Psoroptes and psoroptio mange or 

 scab of, 17 (fig.), 18 (fig.), 19 

 (fig.), 44 ; Sarcoptes and sar- 

 coptic mange of, 28 

 Spirochaeta galUnarum, 88 

 Staphylococcus pyogenes albus,19 

 Sternostomum, 92 ; S. cryptorhyn- 



chum, 93 

 S. rhynolethrum, 89 (fig.), 91 (fig.), 92 

 Symbiotes, 15, 16 (fig.), 22 (fig.) 

 Symbiotic mange, 23, 34, 45 

 Syringophilus, 1 1, 65, 74 ; S. bipecti- 

 natus, 57 (fig.), 58 (fig.), 74, 75 ; 

 S. columbae, 57 (fig.), 58 (fig.) 75 



Tank for dipping horses, 43 



Tarsonemidae, 13, 94 



Tarsonemus, 94, 100 (fig.), 101 ; 



T. apis, 101 (fig.) 

 Tracheal tubes of Otodectes, 15 



(fig.) ; of Listrophoridae, 52 (fig.), 



69 

 Trombidiidae, 13, 72 

 Tropical fowl mite, 89 

 Tydeus,T6; T.molestus, 58 (&g.), 76 

 Tyroglyphidae, 13, 61, 70, 71; 

 Tyroglyphus longior, 71; T. longior, 



var. castellanii, 53 (fig.) 



