PLATE 8a. 
1—Spiroptera Microstoma, cepnalic ex- 
tremity. 
2—Spiroptera Miecrostoma, caudal extrem- 
ity of male. 
3—Spiroptera Megastoma, cephalic ex- 
tremity. 
4—Filaria Cervina, female. 
PLATE 8b. 
5—Filaria Papillosa, cephalic extremity. 
6—Filaria Papillosa, caudal extremity of 
male. 
7—Heterakis Papillosa. 
8—Filaria Immitis, male. 
PLATE 9. 
1—Selerostomum equinum, cephalic ex- 
tremity, female. 
2—Selerostomum equinum, female natural 
size. 
3—Sclerostomum equinum, male, natural 
size, 
4—Sclerostomum equinum, cephalic ex- 
tremity, male. 
5—Sclerostomum equinum, caudal pouch, 
male. 
6—Sclerostomum endentatum, front view, 
head, female. 
7—Sclerostomum endentatum, female, nat- 
ural size. 
8—Sclerostomum endentatum, male, nat- 
ural size. 
9—Sclerostomum edentatum, front view, 
mouth. 
10—Sclerostomum edentatum, caudal pouch, 
male. 
11—Gyalocephalus capitatus, cephalic ex- 
tremity, female. 
12—Gyalocephalus capitatus, female, nat- 
ural size. 
13—Gyalocephatus capitatus, male, natural 
size. 
xil 
Inserted 
between pages 
92 and 63 
Inserted 
between pages 
120 and 121 
