.316 
marked sub-conical lobules, otherwise the ventral edge is uniformly 
curved from base to apex (fifj. 3). 
The disposition of the rays as far as could be seen was as follows: 
Dorsally. An (anterior) ray terminates in a papilla about the 
middle of the dorsal edge ; (a) behind this are two (median) rays, the 
posterior of which is the larger, and is curved inwards before it 
reaches the margin. Finally two rays diverging from a common 
stem end in papillae at the tip of the burs<i (fig. 4). 
Ventrally. A ray terminates in each of the ventral lobules 
C^S’- 5)- was not possible to trace any of these rays from their 
origin from tlie central mass. 
The distance from the base of the bursa (dorsally) to the tip of 
the folded and curved lobes is about a millimetre. 
Appendages of the genito-anal opening . — Dorsally there is a 
prolongation of the subcuticular layer, which bifurcates posteriorly 
into two appendages which appear to have papillae. Anteriorly this 
is bounded by a crescentic line (fig. 0 ). Laterally on either side there 
is a small lobule. 
Ventrally there is a conical plate with chitinous margin, and 
closely applied to it dorsally a larger crescentic plate, also with 
chitinous margins, the anterior portion of which is continuous with 
the ventral edge of the bursa (fig. 7). 
The Spic 7 iles are about 7 mm. long, thus occupying about one- 
third of the length of the body. In figs. 8 and 9 they are shown in 
different stages of extension. 
The female is about 25 mm. long. The tail end is pointed, and 
in some specimens somewhat curved. The anus is situated 0*2 mm. 
and the uterine opening 0*5 mm. from the tip. The eggs in utero 
measure no x 53 ^ (fig. 10). 
The worms are represented in their natural size in fig. li- 
