562 REPORT ON А COLLECTION ОҒ CRANIA FROM ARKANSAS. 
Descriptive Notes.—I\n the undeformed skulls, the forehead is generally well 
built; the sagittal region is anteriorly uniformly oval, or there is but a slight 
median elevation, while from the summit backward and particularly in the region 
of the obelion, a number of the specimens show a shallow median depression; the 
temporo-parietal region is convex, without bulging, and the parietal bosses are not 
pronounced ; the occiput is also convex, without bulging, as it does in long crania. 
In several instances the locality of the inion, usually marked by a protuberance, 
presents a depression; this is especially marked in Nos. 249,018 апа 249,922. 
The supraorbital ridges are in all these crania less developed than usual, while 
the opposite is true of the mastoids, particularly those of the females, which are 
much above the average and could in most of the cases easily be taken for those of 
males. 
The sutures show generally a submedium serration; obliteration is irregular 
in the different specimens, but in a number of instances is seen to have involved 
the coronal suture below the temporal ridges before it has advanced much in other 
localities. Тһе pterions are all of the H form and mostly of fair width. Sutural 
bones are small and quite infrequent. 
The nasion depression, due to the small supraorbital ridges, is generally more 
or less shallow; the nasal bridge is of but moderate height, especially in 249,995; 
the inferior borders of the nasal aperture are in most of the cases sharp, but in 
249,918 they are dull, with moderate subnasal gutters, while in 249,923 they are 
dull and there are moderate subnasal fosse. The spine, as usual in the Indians, is 
mostly of submedium dimensions as compared with that of whites.* 
Тһе malar bones and zygom:e are in all these specimens of only moderate 
strength and prominence. Тһе canine, or submalar fossæ, are of medium develop- 
ment. The chin is generally of moderate protrusion ; in 249,921, and especially 
in 249,915, it is square. The angles of the lower jaw are in no case prominent. 
The base is characterized by small depression of the petrous bones, small mid- 
dle lacerated foramina, and submedium to rudimentary styloids—all features com- 
mon in Indians. In two of the ten skulls, in which the examination of the floor 
of the auditory meatus is possible, there is a small defect in the same—in 249,921 
on the left, in 249,922 bilaterally. 
The dentition has been found regular and complete in all cases where it was 
possible to examine the same, except in 249,919, where there are traces of one or 
possibly two rudimentary, supernumerary dental elements in the upper jaw on the 
right side. Тһе teeth are in all cases of moderate size. Тһе upper incisors, where 
preserved, show the pronounced ventral concavity, or shovel form, which is encount- 
ered in nearly all of the Indians. The cuspidary formulz, so far as they could be 
ascertained, differed in no way from what is most usually found in the whites. 
The wear of the teeth is less than usual in other localities. 
* This structure is subject to so much variation, and is so often damaged, particularly in old skulls, 
that the writer finds it impracticable to utilize it as the point from which the nasal height is to be meas- 
ured, utilizing instead the mean of the lowest points on the border of the two notches of the nasal 
aperture. 
