URSUS. 481 



of upper tooth row, 74; length of molar, 34; length of lower jaw, 229; 

 of lower tooth row, 79. 



B. Euarctus. 



"Fur uniform throughout, either black, brownish, or cinnamon; 

 hair darkest towards tips; nose brown; feet moderate; fore claws not 

 twice as long as the hinder." 



478. machetes (Ursus), Elliot, Pub. Field Columb. Mus., in, 1903, 



p. 235. Zoology. 

 FIGHTING BEAR. 



Type locality. Casas Grandes, Sierra Madre, State of Chihuahua, 

 Mexico. 



Geogr. Distr. Northern Mexico. 



Genl. Char. Color, cinnamon or black. Skull long, frontals 

 broad, raised above level of face; nasals very broad, posterior ends 

 on a line with ends of maxillae; superior outline convex, highest just 

 behind postorbital processes, and declining gradually anteriorly, 

 sharply posteriorly; occipital crest prominent, extending forward to 

 coronal suture; zygomatic arches very wide; basioccipital and basi- 

 sphenoid wide; pterygoid fossa equal in width throughout its length, 

 broad and rounded anteriorly; mandible heavy, deep beneath last 

 molar; coronoid process very broad, and rounded on top without 

 hook over posterior margin ; upper and lower molars much worn, the 

 larger one quite smooth, so that their characteristics are absent. 



Color. Black with tan nose, or all cinnamon. 



Measurements. Skull: total length, 315; occipito-nasal length, 

 282; Hensel, 267; zygomatic width, 196; interorbital width, 75; 

 across postorbital processes, 103; mastoid width, 132; posterior width 

 of basioccipital, 39; length of pterygoid fossa, 49; palatal length, 145; 

 length of nasals, 75 ; anterior width of nasals, 30; width at mid-length 

 of nasals, 26; anterior edge of canine to posterior edge of last molar, 

 alveolar border, 99; length of last molar, crown, 24; width, 19; width 

 of palate at anterior edge of last molar, 53; between canines at pos- 

 terior edge, 46; breadth of muzzle at outer side of canines, 66; length 

 of mandible, angle to symphysis on top, 212; height at condyle, 36; 

 at coronoid process from angle, 89 ; breadth of coronoid process above 

 condyle, 62; length of condyle, 65; length of lower molar series, 

 alveolar border, 58. 



The Raccoon family includes the various forms of "Coons" (the 

 animals so familiar to all the inhabitants of North America), such as 

 the well-known Coati-mondis of South America (one species ranging 



