276 THE AMERICAN NATURALIST. [Vor. XXXVI. 
The malar bone shows remnants of an anomalous division, 
which separated the frontal process from the body of the 
bone. 
The division runs in the line of the posterior or horizontal 
position of the temporal border of the malar and consists of a 
row of small, irregular perforations, with a larger, round fora- 
men in the middle. It is plain, on both the anterior and 
posterior surfaces of the bone, that the line of openings is 
the remnant of a former complete separation of the frontal 
process. 
There are no signs of injury. The part of the face with the 
left malar has not been recovered. The right malar shows no 
further abnormality. 
The malar division in this specimen is analogous with the 
superior of the two divisions in the case described by Riccardi, 
and is considered by Matiegka, whom I informed of the case, 
to represent a non-union 
of the superior of three 
centers from which the 
i bone developed. 
j Case 2 (Fig. 2). Malar 
= Division in a Peruvian. — 
Z 
This is the first instance 
of a complete malar divi- 
sion found among aboriginal Americans. It is the only skull 
with a complete division that I found among 492 old-Peruvian 
and over 2000 other Indian crania from various localities. The 
specimen is one of the Bandelier collection, in the American 
Museum of Natural History, New York City. - 
The skull is that of a male of between forty and fifty years 
of age. It is of a moderate size, and shows nothing extraor- 
dinary except a moderate artificial frontal compression and a 
persistence of the metopic suture. 
The left malar presents a complete and. patent, horizontal, 
serrated suture, which divides it into a narrow lower, and large 
upper, portion. The right malar shows in a similar location a 
0.5 cm. long, straight, anterior, anda 0.7 cm. long, slightly 
serrated, posterior, incisure. | | 
Fic. 2. 
