70 ALLEN — GUADELOUPE ISLAND AGOUTI [^VoLV.*^" 



of the head, neck, shoulders, and back, a uniform shining black, with but 

 a trace of ochraceous tipping to the hairs on the anterior part of the back. 

 The reddish tints are almost entirely suppressed, and the sides of the belly 

 are blackish instead of brown. The skull is characterized by the relatively 

 broad posterior expansion of the nasals, the narrow palate, small teeth 

 and short tooth-rows. 



Color. — The type specimen may be described as shining blue-black 

 above, this color clear on the crown, sides of the neck, posterior part of the 

 back, forearm and manus, hind leg and pes. On the rostrum, sides of the 

 face, shoulders and center of the nape, there is a slight admixture of yellow- 

 tipped haii's, producing a fine 'ticking.' On the sides of the body these 

 yellow tips ai*e slightly more extensive, of a distinctly ochraceous color, 

 becoming nearly ochraceous rufous near the hips. Ventrally, the chin is 

 nearly bare, covered with minute white hairs, succeeded on the upper 

 throat by a band of pale ochraceous buff. The remainder of the inferior 

 surfaces is brownish black, minutely ticked with ochraceous buff, except 

 mid-ventrally, where the yellowish tips of the hairs are more extensive and 

 combine to form a pale yellowish median stripe from the chest to the anus. 

 The color is clearer, and a bright ochraceous, about the latter region. 



The second and younger specimen is quite like the type in its coloration. 

 Skull. — The skull more nearly resembles that of D. alhida, from St. 

 Ymcent, than that of D. anlillensis from the nearer island of Sta. Lucia. 

 From both it differs in its slightly narrower brain-case, and in the greater 

 breadth of the nasals posteriorly. In the Guadeloupe skulls the greatest 

 posterior width of the combined nasals is considerably more than half 

 their length along the median line. In the two other species the greatest 

 width of combined nasals goes ahnost exactly twice into the median length. 

 This broadening of the nasals posteriorly results in forcing the ascending 

 angle of the premaxilla laterally so that it is less evident in dorsal view. 

 In ventral aspect, the rostrum is slightly less inflated at the sides, com- 

 pared with D. anlillensis, the teeth are all shghtly smaller, the tooth-row 

 is shorter, the palate slightly narrower, and the opening of the posterior 

 nares somewhat more pointed anteriorly. The pit in front of the ant- 

 orbital foramen is slightly more pear-shaped. 



Measurements. — • No dimensions of the fresh specimen were recorded. 

 The skin as made up is 415 mm. in length of head and body; the hind foot 

 with claw, 102. To the following measurements of the skull are added, in 

 parentheses, the corresponding dimensions of D. anlillensis (M. C. Z., no. 

 10,110): condylobasal length, 90; palatal length, 48 (50); diastema, 25 

 (25); median length of nasals, 33.2 (34); greatest combined width of 

 nasals, 18.5 (16); greatest width of brain-case, 33.5 (35.5); alveolar length 

 of upper molar row, 15.8 (18); greatest width outside alveoli of anterior 

 upper molars, IS (19.4) mm. 



