C. L. Boulenger 31 
The mouth capsule is broad, having a depth of 70/x with a breadth of 
140/x. The wall of the capsule is increased posteriorly to form a very well- 
marked “hoop-like" thickening (Fig. 3). 
A dorsal gutter is present but is very short, just projecting into the mouth 
capsule. There is a well-developed oesophageal funnel (Fig. 3). 
Male : 14 mm. in length, with a maximum breadth about -75 mm. near 
the middle of the body. The head is nearly 200/x broad. 
The oesophagus has a length of 700/x; it reaches its maximum breadth 
Fig. 3, Cylicostomum adersi sp. n. Anterior extremity in dorsal view, x ] 10. 
G.c. 
i 
» 
Fig. 4. Cylicostomum adersi sp. n. Ventral view of the genital 
cone to show the appendages, x 280. 
(170/x) about the middle of its posterior half. Cervical papillae are situated 
650 p, from the anterior extremity of the body. 
The bursa (Fig. 5) has a broad median lobe of moderate length. The 
comparatively short genital cone is completely surrounded by a well-developed 
dermal collar. Prebursal papillae slender and very long (250/x). 
The appendages of the genital cone are completely fused in the middle 
line, forming a thin semicircular plate the margin of which bears four pairs 
of delicate finger-shaped processes, some of which have bifurcated extremities. 
On each side of this plate is an additional process arising from the dermal 
collar (Fig. 4). 
