72 NORTH AMERICAN FAUNA 60, FISH AND WILDLIFE SERVICE 



Color. — UppcM- parts in general li<::ht ereain hiift", tlie dorsal area 

 thinly overlaid with black; nuchal patch iindifrerenliated or faintly 

 indicated by a very pale buffy line; sides lighter, the l)lack-tipped hairs 

 inconspicuous; top of head grizzled gray and l)lack; })lack mask 

 extending across face and along median line from nasal pad to middle 

 of forehead; white supraorbital lines continuous to sides of neck; 

 sides of muzzle, lips, and chin white; under parts, in general, thinly 

 overlaid with very pale creamy buff, the light brown underfur show- 

 ing through; throat patch brownish flecked with gray; ears grayish, 

 the black patches at posterior base, usual in the group, obsolescent; 

 limbs about like sides, becoming dull whitish on feet; hind legs 

 brownish on outer sides near ankles; tail above with about seven 

 })lack rings and a black tip, alternating with broader cream buffy 

 or light ochraceous buffy rings, the dark rings interrupted below. 



Cranial characters. — Skull large, angular, and massive, with remark- 

 ably heavy zygomata, the squamosal arm, especially, very broad 

 anteriorly and extended vertically (as apparent when viewed from 

 ^he side). Similar in general to that of P. lofor, especially , P. I. 

 mexicanus and P. I. hernandezii, but more angular; zygomata broader 

 and heavier, the squamosal arm broader anteriorly, more extended 

 vertically; transverse squamosal portion of zygoma bearing a more 

 conspicuous process on anterior border near posterior end of jugal; 

 palatal shelf relatively narrow^er, the lateral borders more deeply 

 concave; postorbital processes of frontals well developed as in mexi- 

 canuf^ and hernandezii: large molariform teeth narrower; crown of 

 second upper molar subquadrate, instead of subtriangular, the inner 

 border more evenly rounded. 



Remarks. — P. insularis is clearly allied to P. I. mexicanus and 

 P. I. hernandezii of the adjacent mainland and was regarded by its 

 describer as a subspecies of the widely ranging continental animal. 

 The characters pointed out are so trenchant, however, that its position 

 in the group is better expressed by according it specific rank. It is 

 subdivisible into two closely related insular forms. 



PROCYON INSULARIS INSULARIS Merriam 

 MarIa Madre Island Raccoon 

 Procyon Intor insularis Merriam, Biol. Soc. Washington Proc. 12: 17, .Jan. 27, 1898. 

 Type locality. — Maria Madre Island, Tres Marias Islands, off west 

 coast of Nayarit, Mexico. 



Tyj)e. — No. 88978, old male, skin and skull, United States National 

 Museum (Biological Surveys collection); collected by E. W. Nelson 

 and E. A. Goldman, May 10, 1897. 



