153 
ON AN APPARENTLY NEW TYPE OF THE PLATYHELMINTHES 
(TREMATODA 2). 
TS EES UT — SIE EEO OTe vw 
Baldwin Siencee a Melbourne, for his kindness in procuring the specimens for me 
and in facilitating in every way my work at this subject—most of which was done in 
his laboratory in Melbourne. 
I].—Generat Exrernat Fratvres. 
Actinodactylus is a very small worm, averaging about 1mm. in length by ‘3mm. 
in greatest breadth. It is dorsi-ventrally compressed, convex above, flat below, 
devoid of segmentation, external or internal. In outline it may be described as pear- 
shaped, the narrower end being anterior. At the anterior end there is, in the living 
and extended condition, a small rounded cephalic lobe; at the sides of this are a pair 
v 

