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teeth of the serration centripetal fibers are noticed extending toward 
the intestinal tract. These centripetal 
fibers bound the protoplasmic processes 
of the muscle cells and form a mesh 
work which almost completely fills the 
bod}" cavity and which gives a very 
striking picture as one views a mounted 
specimen cleared in gh"cerine. Because 
of the direction of the mesh work the 
dorsal and ventral views (fig. 12) of the 
worm, in respect to this mesh work, are 
entirely ditferent from the lateral view 
(fig. 13). The superficial meshes are 
smaller than those which lie more 
deepl}". The entire picture, as seen 
through the body wall, reminds one of 
adipose tissue. On transverse section, 
however, it is seen that fine fibers pro- 
ceed from the apices of the serrate 
border of the muscular layer; these 
fibers extend in a general way toward 
the intestine, but in an irregular course. 
Approaching each other, they form 
small meshes near the muscle fibrillae, 
with larger meshes toward the intes- 
tine. The smaller meshes near the 
muscle fibrillfe contain a fineh" granu- 
lar mass; the larger meshes may be 
clear or nearly so. Nuclei may be ob- 
served here and there in the mesh work. 
Longitudinal bands and subcuti- 
CULA. — As stated in the foregoing, the 
lateral bands are much more highly 
developed than are the median bands; 
further, the lateral bands are in close 
relation to the excretory glands, so that 
the two together present an appearance 
which one is at first tempted to consider 
as indicating a common origin. Closer 
study, however, indicates a more dis- 
tinct separation than at first seems 
probable. 
Siibcuticula. — The subcuticula is very 
thin, but in some sections, and even in 
some worms cleared in glycerine it ap- 
pears quite distinct. 
Median bands. 
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-The median lines can be distinguished on most sec- 
