DESCRIPTION OF PLATES xix 
Fig. 3. F. bibulbosa. Nov. sp. $ and 9 : natural size. 
Fig. 4. F. bibulbosa. Head end of 9 • a i intestinal tract ; />, oesophagus ; c, opposite vaginal 
orifice ; d, uterus ; e, vagina. 
Fig. 5. F. bibulbosa. ^Tail end of 9 ; ir, opposite anal orifice ; b, intestine ; c, distal end of ovar)'. 
Plate IX 
Fig. 1. Filaria bibulbosa. Head end of $ ; a, intestinal canal ; b, oesophagus; c, spermatic tube. 
Fig. 2. F. bibulbosa. Tail end of $ ; note the single extruded spicule. 
Fig. 3. F. bibulbosa. The embryos in stained blood. Specimen shewing their comma-shape 
and ' spots ' ( x 250). 
Plate X 
Fig. r. Filaria capsulata. Nov. sp. $ and 9 and cyst containing worms : natural size. 
Fig. 2. F. capsulata. The cyst with 9 worm enclosed were highly magnified. The $ had 
been removed. 
Fig. 3. F. capsulata. Head end and portion of the body of 9 ; <*•, oesophagus ; b, intestine ; 
c, opposite vaginal orifice ; d, vagina ; e, uterine horn. 
Fig. 4. F. capsulata. Tail end of 9 ; a -> intestine ; b, opposite anal orifice. 
Fig. 5. F. capsulata. The embryo in stained blood preparation ( x 250). 
Plate XI 
Fig. I. Filaria capsulata. The $ complete, a, oesophagus; b, intestine; c, spermatic tube; 
d, tail end ; e, head end. 
Fig. 2. F. capsulata. Tail end of $ . a, opposite anus and single partly extruded spicule ; 
b, intestine ; c, head end of $ ; d, head end of 9 • 
Fig. 3. F. phoenicopteri. Nov. sp. $ : natural size. 
Fig. 4. F. phoenicopteri. Head end of $ . a, oesophagus ; b, opposite oral orifice. 
Fig. 5. F. phoenicopteri. Tail end of $ shewing single spicule extruded. a, intestine. 
Plate XII 
Fig. I. Filaria serpentiformis. Nov. sp. The embryo in stained blood preparation (x 250). 
Fig. 2. F. opobensis. Nov. sp. The embryo in stained blood preparation ( x 350). 
Fig. 3. F. calabarensis. Nov. sp. The embryo in stained blood preparation ( x 250). 
Plate XIII 
Fig. 1. Filaria cypseli. Embryo with sheath — fresh specimen ( x 550). 
Fig. 2. F. spiralis avium. Embryo with sheath — fresh specimen ( x 550). 
Fig. 3. F . fusi for mis avium. Embryo, and its head ending showing prepuce, papilla, and spine 
protruded and retracted ( x 550). 
Fig. 4. F. spiralis major. Embryo and sheath ( x 550). 
Fig. 5. F. falciformis. Embryo ( x 550). 
Fig. 6. F. bibulbosa. Embryo (x 550). 
Plate XIV 
Fig. 7. Filaria capsulata. Embryo ( x 550). 
Fig. 8. F. serpentiformis. Embryo ( x 550). 
