CRANIA FROM THE MOUNDS OF FLORIDA. 385 



Lower Jaiv. Deflected angle ; condyle process angulated ; genial spine and 

 ridge present ; hyperostosis of molar and premolar region conspicuous ; mylohyoid 

 ridge lost in it. 



2,154* <?, Kotzebue Sound, Alaska, Dr. Benjamin Sharp. Aged 50 }ears, — 

 ooidocephalic. cvmbecephalic. 



Glabella and supra-orbital ridges rudimental, 2 mm.; supra-orbital margin 

 slightly inclined 10°. Frontal portion nasal bone 4 mm. long; maxillary portion 

 15 mm.; premaxillary portion 2 mm.; radix 12 mm., 80°; salient 13 mm., 50°. — 

 Nasal vestibule analophic. — Alveolus 22 mm. high. — Hard palate U-shaped. Torus 

 palatums present. — Choanae pa?domorphic. Pyramidal process 18 mm. Spinous 

 process overlapping sphenoido-tympanic fissure on right side. — Foramen lacerum 

 medium nearly closed. — Temporal ridge with fault at stephanion. Mortise on right 

 side. — Malar bone with marginal process ; suture-trace evident. Skull rests on 

 conceptacula. 



659 ^, Assinaboin. Aged 40 years, — eurycephalic. 



Glabella and supra-orbital ridge marked, 4 mm. — Nasal bones narrow at bridge; 

 frontal portion expanded, 5 mm. ; maxillary portion narrow, 25 mm. ;' premaxillary 

 portion 4 mm.; outer half orbital margin greatly inclined. Nasal vestibule micro- 

 lophic ; incisor and eminence and crest high, compressed ; spine mutilated, prominent. 

 Alveolar line discernible, defining fossa? between it and the incisor eminence. — 

 Alveolus high, scarcely inclined. The premaxilla small in horizontal limb, teeth 

 vertical. — Hard palate parabolic, deep ; external pterygoid plate very wide. — Sphe- 

 noido-tympanic fissure not overlapped by the spinous process. — Petrosa scarcely 

 inflated. — Symmetrical Wormian bones at asterion. Parietal slightly mortised at 

 post-squamosa. — Skull rests on conceptacula. Platybasic. Tapeinocephalic. 



1,230 9 , Assinaboin. Aged 24 years, — eurycephalic. 



Glabella and supra-orbital ridge almost nil ; supra-orbital margin scarcely 

 inclined. — Nasal bone 24 mm. long ; moderately depressed at bridge, not narrowed; 

 frontal portion 3 mm.; maxillary portion 18 mm.; premaxillary 5 mm. Nasal 

 vestibule maerolophic ; incisor eminence nil ; spine marked, simple, with small 

 ridges ; alveolar line defined ; incisor crest high. — Hard palate parabolic shallow ; 

 sphenoido-tympanic fissure not crossed by spinous process. Petrosa inflated ; 

 tapeinocephalic. 



Lower Jaw. Third molar partially concealed by the base of the coronoid 

 process; genial spine and crest nil. Upper molars 4-4-0, lower molars \°-l° . 



649 <?, Arickaree, — cymbecephalic. 



Glabella and supra-orbital ridge faint ; supra-orbital margin, 40°. — Nasal bones 

 25 mm. long; frontal portion 3 mm. long; maxillary portion 19 mm.; premaxillary 



1 This skull was received after the table of measurements was finished. 



