106 Merriam New Brocket from Yucatan. 



113 mm. long), deeply plicated or furrowed longitudinally; neck haired 

 like rest of body (not scantily as in M. sartorii). 



Color. Animal drab brown above and below, becoming grayish on 

 neck; hairs of back annulated subapically with pale fulvous; chin, un- 

 derlip, front of upperlip, inguinal region, and inner sides of thighs and 

 foreleg while or whitish; anal region and upper side of tail dull fulvous; 

 underside of tail white; ears drab brown with white spot or edging at 

 anterior base of opening; muzzle and sides of face drab brown; anterior 

 base of ear, eyelids, and upperlip washed with fulvous: forehead 

 marked with patches of rusty red; foreleg and fore and hind feet dull 

 fulvous. 



Cranial character*. Skull similar in general to that of sartorii but a 

 trifle larger; rostrum broader, especially anteriorly; nasals decidedly 

 longer; frontal** very much broader behind orbits; lachrymal larger, the 

 lachrymal depression larger and more evenly rounded (basin shaped), 

 outer edge of squamosal root of zygoma with a strong and abrupt up 

 ward curve or bend near base; posterior projection of palate broader; 

 foramina ovale more broadly open and looking more directly downward 

 [in sartorii they are narrowed and look more obliquely forward and out 

 ward]; basioccipital with a strongly developed constriction or notch on 

 each side immediately in front of condyles; mastoids larger, descending 

 on outer sides of paroccipital processes; molariform teeth larger; crown 

 of 2d lower premolar much longer; crown of 3d lower premolar thicker 

 and larger in every way; true molars nearly the same size as in sartorii 

 although the last is slightly larger. 



Measurements. Type specimen ($ ad.): total length 112*>: tail verte- 

 bne 140; hind foot 273; height at shoulder 572. 



Skull. Type specimen (^ a.d.): basal length 103: occipitonasal length 

 1.17; least breadth of frontals between horn cores and orbits (58; breadth 

 across posterior rims of orbits 73.5: breadth of horn cores just below 

 burr 77: zygomatic breadth 82; least interorbital breadth 44; length of 

 nasals 59: joint length of basioccipital and basisphenoid 45.5; length of 

 upper molar series on alveoli 50; length of antler 113. Adult 9 fi'om 

 Apazote, Campeche: basal length 1(50; occipionasal length 1(51; length 

 of nasals 57.5: breadth of frontals at posterior corner, of orbits 57: least 

 interorbital breadth 3D: palatal length 100; length of upper molar series 

 on alveoli 52.5. 



