Wor] GRAMMICOLEPIS BRACHIUSCULUS. 287 
rounded and descending prominence, which is bifid, the two 
lamina being directed backwards and outwards. The behavior 
of the anterior end of the parasphenoid of Pomacanthus has 
already been described above. 
This bone is also wonderfully developed in our cranium of 
Teuthis (Fig. 11). Here the carination in front is exceedingly 
deep, while behind it, a distinct descending process is also seen. 
figure 7.— Superior view of the cra- 
nium of Caranx hippos, same specimen 
as in Fig. 6; life size. 
figure S.—The same seen from be- 
low. Letters as in the former figures. 
Further, this elegantly developed element makes another curi- 
ous departure from all the specimens thus far examined. It is 
this: where it forks over the basioccipital behind, a large fora- 
men is found between the diverging limbs; this opening is in 
reality the apex of the eye-muscle canal in this fish, and conse- 
quently leads through that fossa to its continuation, which again 
is the longitudinal excavation on the upper side of the parasphe- 
noid or the floor common to the orbits. 
But to return to our cranium of the Caranr No. 11,385: we 
find that the anterior and horizontal portions of the frontal bone 
