274 THE AMERICAN NATURALIST. (Vor. XXXVI. 
Hilgendorf,’ Tarenetzkij? Calorij? Matiegka," etc. In other 
mammals cases of complete malar division have thus far been 
found in two Cercopithecit sabei (Laurillard,? Breschet ?) ; 
four Mycetes seniculi (Laurillard,. Breschet) ; in one. Mycetes 
niger (Breschet); in an orang (Flesch®); in a hippopotamus 
(Breschet); and in a Phascolomys wombatus (Gruber ?). 
The complete malar divisions present some variety. In a 
very large majority of the cases, both in man and the lower 
mammals, the malar was found divided into two portions by a 
suture running antero-posteriorly from the malo-maxillary to 
the zygomatic articulation. In the orang described by Flesch 
the posterior extremity of the anomalous division terminated 
on the temporal border of the malar bone, a short distance 
anterior to the upper end of the zygomatic suture. In two of 
Calori's cases the posterior termination of the anomalous suture 
was situated respectively at the base and above the middle of the 
ascending portion of the temporal border. The second of these 
cases shows much similarity with one I have at hand, in which 
the malar division is due to fracture (v. the end of this paper). 
‘Testut reports a case ? in which the division ran in a curve 
from the ascending portion of the orbital border to the middle 
of the malo-maxillary suture. Spix,!* Breschet,? Riccardi,’ and 
Ruggeri,” finally, observed a division of the malar into three 
portions, the location of which differed in each instance. 
Of incomplete malar divisions there have been described 
thus far only horizontal ones in which the suture connects with 
either the zygomatic or the malo-maxillary suture. 
8 Arch. f. patholog. Anat. und Phys., Bd. lxx (1879), pp. 113 et seg. 
? Beiträge zur Craniologie der Ainos und Sachalin, Mém. de / Acad. nbi Sci. 
de St Pétersbourg, Sér. 7, tome xxxvii (1890), p. 
u le anomalie dell' osso zigomatico, etc., Mer. d. R. Accad. d. Sei. del" 
Zstit. d Bologna, Ser. . 5, tomo iii (1893), p. 415. 
u Prvni Lebka z janl s “Os Malare Bipartitum,” Véstnik Král. České Spoled. 
Néuk, vol. xxviii, pp. 1 Prague, 1899. Also in Germ 
12 In Cuvier’s Leg. FW npe 2d ed., tome ii (Padi, 1837), pp. 385, 386. 
Cit. Gruber. 
13 Traité d’ Anatomie Humaine, toii i, p. 174. . Paris, 1889. 
M Cephalogenesis s. capitis ossei MORAN eic et eit Ss kra 
' 1815), p. te Cit. Graber, enr 
35 Un zigomatico tripartito, jc Serin. di Pivetiqie tomo 
(1897), p- 460; refer. Central. f. Anthropol., Bd. iii (1898), p. 20. Cit. de 
