224 
PACIFIC SCIENCE, VoL VIII, April, 1954 
the outer side of this black border is a very 
thin white or pale margin, and to its inner 
side is a rather wide band of a yellowish- 
brown hue, indicated by light stippling in 
Figure 2. Because of the black border, eyes 
could not be detected on the tentacular folds 
at the center of the anterior margin. Behind 
these folds are the usual small paired clusters 
of cerebral eyes. The pharynx is short and 
broad, with a few much-branched lateral folds. 
From behind the pharynx the main intestine 
extends posteriorly in the middorsal region, 
terminating blindly well anterior to the pos- 
terior margin. The net-like intestine, originat- 
ing from the main intestine by numerous 
branches and spread throughout the body, 
is plainly seen on the whole mount but has 
not been represented in Figure 2. The position 
of the sucker is shown in Figure 2. The animal 
is totally without any part of the reproductive 
system, except that the position of the female 
gonopore is indicated by a few cement glands. 
The type specimen as a whole mount has been 
deposited in the American Museum of Natu- 
ral History. It has been left unstained and 
preserves the original coloration. 
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