‘4 
J. Playfair MeMurrich ils) 
slips, which pass to the second, third and fourth digits and are three of 
the tendons of the flexor digitorum sublimis. 
On tracing the palmaris longus distally it is found to develop upon its 
deep surface a slender tendon, represented by the shaded portion in 
Fig. 5, and toward the wrist the rest of the muscle passes into a flat ten- 
don which is lost in the palmar fascia. The slender tendon can be traced 
onward into the hand below, 1. e. dorsal to the flat tendon and the palmar 
Fic. 6. Transverse section through the forearm of an embryo cat of 7 cm. Let- 
tering the same as in the preceding figure. 
fascia, and, verging toward the ulnar side of the hand, it becomes the 
sublimis tendon to the minimus. This origin of a portion of the sub- 
limis from the palmaris differs from the aceount given by Coues, the only 
description of the myology of the opossum I have been able to consult; 
this author, as well as Windle, derives all four tendons from the condylo- 
ulnaris. The origin of the minimal tendon from the palmaris was found 
both in my sections and dissection and, as will be seen, is in harmony 
with what occurs in other forms in which the sublimis is in a low state 
of differentiation. 
