203 



19) distinct caninus fossa: 0 = absent; 1 = present. 



20) depth of unnamed fossa on ventrolateral side of premaxilla: 0 = shallow; 1 = medium; 2 = deep; 

 9 = absent. 



21) anterior opening of infraorbital canal relative to nasolacrimal foramen: 0 = anterior; 1 = ventral 

 (or posterior). 



Orbit and zygomatic arch (35 characters) 



22) swelling of maxilla anterior to zygomatic arch: 0 = absent; 1 = present. 

 *23) distinct preorbital process of maxilla: 0 = absent; 1 = present. 



24) size of preorbital process of maxilla: 0 = small; 1 = medium; 2 = large; 9 = absent. 

 *25) distinct postorbital process of maxilla: 0 = absent; 1 = present. 

 26) size of postorbital process of maxilla: 0 = small; 1 = medium; 2 = large; 9 = absent. 

 *27) nasolacrimal (= lacrimal) foramen: 0 = absent; 1 = present. 



28) size of nasolacrimal foramen: 0 = small; 1 = medium or greater; 9 = absent. 



29) location of inferior oblique muscle origin relative to nasolacrimal foramen: 0 = widely separate; 



1 = closely adjacent. 



30) lacrimal: 0 = absent / not visible; 1 = visible. 



31) amount of bone reduction along maxillo-frontal suture in interorbital region: 0 = none / irregular 

 perforations; 1 = little - small foramen or narrow fissure; 2 = great - large foramen and/or greatly 

 widened suture. 



*32) morphology of bone reduction along maxillo-frontal suture in interorbital region: 0 = none; 1 

 = irregular perforations; 2 = round / ovoid; 3 = inverse teardrop-shaped; 4 = roughly rectangular; 5 

 = crescent-shaped. 



*33) shape of maxillary (antero ventral) edge of widened maxillo-frontal suture: 0 = concave; 1 = 

 straight; 2 = convex; 9 = n/a - maxilla and frontal in contact. 



*34) shape of frontal edge (posterodorsal) of widened maxillo-frontal suture: 0 = concave; 1 = straight; 



2 = convex; 9 = n/a - maxilla and frontal in contact. 



*35) degree of invagination of maxillary edge (anteroventral) of widened maxillo-frontal suture: 0 = 



none to slight; 1 = medium or greater; 9 = n/a - maxilla and frontal in contact. 



*36) degree of invagination of frontal edge (posterodorsal) of widened maxillo-frontal suture: 0 = 



none to slight; 1 = medium or greater; 9 = n/a - maxilla and frontal in contact. 



*37) anterior process of orbitosphenoid: 0 = absent / barely extends onto palatine; 1 = present. 



38) degree of anterior extension of orbitosphenoid: 0 = extends to distinctly less than one-half length 

 of palatine; 1 = extends to about one-half length of palatine; 2 = extends to distinctly greater than 

 one-half length of palatine; 9 = absent / barely extends onto palatine. 



39) ethmoid / turbinal bones in wall of interorbital region: 0 = absent; 1 = present. 



40) approach of palatine to lacrimal region: 0 = does not reach lacrimal region; 1 = reaches or almost 

 reaches lacrimal region. 



41) location of sphenopalatine vacuity: 0 = enclosed in palatine; 1 = not enclosed in palatine. 



42) relationship of sphenopalatine foramen and pterygopalatine canal: 0 = totally confluent, only 

 single foramen visible; 1 = confluent, but individually distinguishable; 2 = separate. 



43) continuity of sphenopalatine vacuity and widened maxillo-frontal suture: 0 = separate; 1 = 

 confluent; 9 = n/a - widened maxillo-frontal suture absent. 



44) relative vertical position of optic foramina: 0 = in lower third of interorbital region; 1 = between 

 lower third and upper two-thirds of interorbital region; 2 = in upper two-thirds of interorbital region. 



