3 88 
The Ohio A T aturalist. 
[Vol. Ill, No. 5. 
M. Rectus Abdominis. — (P late n, Fig. i, mra. ) The 
sternohyoideus muscle, already described, is a continuation of M. 
rectus abdominis. As the muscle runs back, it becomes more and 
more flattened, until it presents the typical aspect of a thin sheet 
of tissue lining the ventral body wall. In this specimen it pre- 
sents no unusual characteristics. 
MUSCLES OF THE EYE. 
No well defined musculature for the eye was found, but two 
recti muscles, or traces of them, could be distinguished. They 
are very small, and while their insertion on the eyeball can be 
seen plainly, their origin is lost in the surrounding mesoderm. 
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