416 Mr. R. J. Ortlepp on a new 
The externo-dorsal ray is stout and slightly arched. Its 
maximum thickness (28 w) is near its origin, after which it 
gradually tapers to an obtuse point. It terminates some 
200 hw 
Dorsal view of bursa (lateral rays of right side not indicated). 
D).=dorsal ray; £.D,=externo-dorsal ray ; P.L.=postero-lateral ray. 
Fig. 3. 
Left lateral view of bursa. 
D.=dorsal ray; £.D.=externo-dorsal ray; #.L.=externo-lateral ray ; 
L,.V.=latero-ventral ray ; 12.2. =medio-lateral ray ; P.L.=postero- 
lateral ray ; V.V.=ventro-ventral ray. 
distance from the edge of the bursa. ‘lhe postero-lateral and 
medio-lateral rays are almost parallel and of the same length 
and thickness ; the former, however, is straight and passes to 
a ie al i i i I, 
ST |) eee 
