il; 



M4 



MONOGUAPna OF SOUTH AMERICAN RODENTIA. 



i } 



V.i- 



origiiml colore cniiiiot be in llio least discovered. The oilier, in lictlcr state, 

 kIiows the characters pretty well. There is n strong fulvous or salmon- 

 colored stripe along the whole body, just as in P. fascidtun. The light color 

 of the iijiper parts is rntiier n pale cinnamon than the sandy yellowish of 

 P. fmcialiis. The hairs are light plumbeous at base, and many of them arc 

 lipped with Idack, giving the tiark surface-lining. The tail is sharply bicolor, 

 lo corrcsj)ond with the body. The under parts, including the whole fore leg 

 and the foot and inside of the hind leg, are white. 



As in the case of /'. monticoln, further information rcs|>ecling tiiis species 

 is much to be de.<iired, particularly as there appear to be some Mexican ani- 

 mals of this gcnufi with which we are at present not well acquainted. The 

 following measurements are those given by Buird in his original notice : — 



Tahlr III. — J/«uHreiiwiif(a/fi(«<j)gciin«iiai/PRRoo2iATii8 uisriDua. 



In my previous " Review '' of this family (Proc. Phila. Acad. 1876, 29H), 

 I quoted the original noti-.T* of "Abromys lordi" of Gray (P. Z. S. 1868, 202), 

 observing that "we may suppose the animal to be a Perognathus, from (he 

 general tenor of Dr. Gray's remarks, and his curiously mixed-up quotations ; 

 and it is perhaps P. monticola " This supposition is probably verified 



r * Tko followiu); Is tbe origiual notice of tbo g<!iiai) and iipeaieH iu fnll : — 



"3. ABKOMYS,Gray. 



" Upper cutting teeth with a lonfjitudinal Rroovo ; far soft, abundant, nniform, long, and close. 

 Tiiil tapering, cylindrical, covered with abort hair almost biding tbe rings of scales. 



" Perognathiu, sp., 8. Baiid, Hamm. N. A. 423. 

 "AflnoMYS i.i>i(Di. B. H. 



" Fnr soft, abnndnnt, gray-woHbrd, with blackish tips ; chin and nndcr side of body whitish ; tail 

 tnporing, grny, with ft blackish-brown upper snrface and tip ; hair of tbe back dark lead-color, with a 

 short gray Irand and niinnte black tip. 



" Perognathus inoiiticolor [sio], Lord, in B. H. 



" f Perognathus monticola, S. Baird, Hamm. N. A, 48S, t. 51, f. 3 (skull). 



"Hab. British Columbia (£ord). 



"The l«eth destroyed. Length of body and bead 3 inches, of tail 3 inches. It differs from 

 Dipodoniys phillipsii and other species of that genua in having no white spot over tbe eye at tbe base 

 uf tbo ear, or white band ooroas the thigh." 



>Mi 



