308 General Notes. [March, 
The body walls, for the most part, are opaque, especially in the 
region of the ciliated belt, which encloses some of the most im- 
portant vital organs. Within the body, however, a globular, 
orange-colored mass (s¢) could be seen, and from it a continuation 
(intestine) leading downward into the posterior body region. The 
cesophagus, if seen, was not recognized. The upward prolonga 
tion of the walls in which the orange mass is found, as shown ii 
a specimen with the upper hemisphere extended, was at first 
thought to be an œsophagus, but afterwards it was referred to @ | 
similar placed organ in Mitraria. 
There are several doubtful and many anomalou 
larva which we have described above. 
The position of the internal organs, upon 
pends in the identification, could not, from 
at my disposal, be satisfactorily determined. 
all homology with other Metachete, that the mo 
situated at the apex of the upper hemisphere, by w 
3 
s features in the ) 
hich the lava 
-mi 
ae 
—j; 
ER 
=e N 
Aa 
Z., 
4 
SS) 
M 
3.—Larva with ciliated belt turned backward (ventral view); 
G. 
Fic. 4.—Ciliated belt seen from below. 
would be made mesotrochal. All homology with Mirga 1 
point to a region just below the ciliated band as a ciliated 1 
ation of this organ. If it really does exist here the us to O 
d be exactly homoi cE vol 8 
ectodermic thickening which is described by Merari M. 
found at the apex of the upper hemisphere of t f heli pave” 
apical unfolding of the wall of the body wou nit 
entirely different meaning from the interpretati iog 
mouth, and the cilia would be regarded as h homolog j 
well-known tuft found in so many genera 1 @ wat 
position. ior PFs | 
The two ciliated protuberances (ff) on the ee genes 
the body resemble closely similar appendages 19 >: che Poy 
Chetopoda.. They are not found in Mitraria the forme! gee 
larve. In connection with taik tee of 
and their existence here, it may be well to : 
ing sentences in Metschnikoff’s article (2. ait) on analen P 
mentof Mitraria, He says: “ Die Abwesen 
mo 
