rrucecdliif/s of the Biological Society of Washington. 
G4 
iii 2 tlie black mask posteriorly, fjri/.zled, not white; sides of muzzle and 
lower lip wlnte; ear svhite on apical half of outer snrfac(‘, black, sliglitly 
,(grizzled, on basal half, with a blackish band, about eighty-five inilimeters 
in length, extending along the base of the ear and well behind it at the 
side of the neck; fore and hind lindjs, including feet, fuscous with soine 
admixture of grayish; tail with a black tip and six blackish rings, which 
become obsolete proximally on the under side; upper throat benzo brown ; 
overhair of remaining underparts grayish white, the drah underfur every¬ 
where visible between the scanty hmg hairs; underfur of upperparts fus¬ 
cous; whiskers mostly white, some of the short anterior ones blackish 
drab, and a few of the longer ones tipped with the same. 
External measurements of the type (old male; measured fresh by the 
author).—Total length, hOO mm.; tail vertebne, 290; ear above crown, 
58; hind foot, with claw, b)2; longest whisker, 95; hmgest hairs on 
dorsum, 50. 
Cranial and dental measurements of type, compared with measurements 
of largest adult male in a series of one hundred specimens of Procyon. 
lotor lotor,* the latter in parenthe.ses.—Condylobasal length, 125 (122); 
zygomatic breadth, 85 (80); breadth of braincase, 57 (56); postorbital 
constriction, 22 (25); interorbital constriction, 27 (25); rostral breadth 
over canines, 29 (30.5); least rostral breadth, 28 (28); from posterior 
border of middle incisor to interpterygoid notch, 72 (75); from the last 
point to the foramen magnum, 43 (38); length of interpterygoid notch, 
17 (15); posterior breadth of iuterpterygoid notch, 18 (—); distance 
between anterior premolars, across palate, 19 (21); distance between 
posterior premolars, 20 (23); distance between posterior molars, 21 (26); 
length of audital bulla, 22.5 (20); length of mandible, 93 (91); length 
of upper lateral tooth row, including canine, 48 (46); combined length of 
upper molars, measured on crowns, 15 (15); length of upper incisor tooth 
row, measured on alveoli, 17 (16.5); length of lower lateral tooth row, 
including canine, alveoli, 54 (53) ; combined length of lower molars, meas¬ 
ured on crowns, 21 (20); lower incisor tooth row, measured on alveoli, 
13 (12). 
Geographical range. —Devils River to Matamoras, south to San Luis 
Potosi. 
Remarks. —A raccoon, very doubtfully from Texas and from no definite 
locality, was described by Gray as Procyon nivea (Charlesw. Mag. N. H., 
1, 1837, p. 580); but several forms of Procyon inhabit Texas, and, Gray’s 
type of nivea being an allnno, its identification is impossilde. 
Procyon lotor ochraceus subsp. nov. 
SONOY'I'A RACCOON. 
Pype-speciinen. —Male, subadnlt (skull with sutures remaining open, 
but all of permanent teeth in place). Cat. No. 59900, U. S. Nat. Mus.; col¬ 
lected on the Sonoyta River near (,)uitohaquita, at -5[onument No. 172, 
678 kilometers (421 miles) west of the Rio Grande and 181 kilometers 
*(;at. No. 1S792(), C. S. Nationiil Museum; Elk River, Minnesota ; from Merriam col¬ 
lection. 
