60 XORTH AMERICAN FAUNA GO, FISH AND WILDLIFE SERVICE 



Honduras, and Guatomala to western Honduras; limits of range 

 unknown. Tropical Zone. 



General characten-i. — A lar^e, rather pale, short-haired subspecies, 

 with massive skull. Similar in general to P. I. hernandezii of the 

 Valley of Mexico, but pelage shorter, color duller, top of head grayer 

 and back less modified by black-tipped hairs; black j)ostauricular 

 spots (small in hernandezn) still less distinct; skull more massive and 

 differing in detail. Size about as in P. I. crassklens of Costa Rica, but 

 color decidedly paler and grayer, the upper parts less heavily overlaid 

 with black, and the subterminal light zone of longer hairs more 

 extended and thus affecting the general tone; skull less flattened. 

 Differing from P. I. dickeyi in larger size, much grayer color, and in 

 cranial characters. 



Color. — Upper parts in general usually light buffy gray, with rather 

 thinly distributed overlying black-tipped hairs resulting in a coarsely 

 grizzled blend; nape patch rusty rufous; sides lighter, the black tips of 

 hairs inconspicuous; top of head clearer gray, mixed with black, lacking 

 the light buffy tone suffusing the back; black mask across face extend- 

 ing downward along median line of muzzle to nose and upward to 

 middle of forehead; lines bordering mask above, sides of muzzle, lips, 

 and chin white as usual in the group; under parts in general thinly 

 overlaid with very light buffy hairs, the light brownish underfur show- 

 ing through, but short and scarcely concealing the skin; throat patch 

 brownish; ears grayish; black postauricular spots small and incon- 

 spicuous; limbs similar in color to under parts, but over hairs denser, 

 becoming dull whitish on feet; hind legs with outer sides of ankles 

 brownish; tail above with seven to eight narrow blackish rings and a 

 black tip, alternating with light ochraceous buffy rings, less distinct 

 and tending to become confluent below, especially near base. Varying 

 in some specimens from paler and grayer to darker, with dorsum more 

 profusely overspread with black, and rusty rufous nape patch indis- 

 tinct or absent. Young (in first pelage) : Similar to P. I. hernandezii, 

 but paler above, especially the top of head, which is scarcely dift'er- 

 entiated from back. 



Cranial characters. — Skull similar in size to that of P. I. hernandezii, 

 but more massive; interorbital and postorbital regions broader; denti- 

 tion about the same. Similar in size and angularity to that of P. I. 

 crassidens, but less flattened, the frontal region higher arched behind 

 postorbital processes; dentition and other cranial details about as in 

 crassidens. Compared with that of P. I. dickeyi the skull is decidedly 

 larger, more massive; sagittal and lambdoid crests heavier, thicker and 

 less trenchant; palate broader; auditory bullae usually larger. 



Measurements. — Type: Total length, 874 mm.: tail vertebrae, 292: hind foot. 

 116. An adult female topotype: 909; 296; 128. Skull: Type: Greatest leii.eth, 



