NO. 22 MAMMALS FROM PANAMA AND MEXICO — GOLDMAN II 



DASYPROCTA PUNCTATA DARIENSIS, new subspecies 



Type from near head of Rio Limon (altitude 5,200 feet >. Mount 

 Pirri, Eastern Panama. No. 179056, female adult, U. S. National 

 Museum (Biological Survey Collection), collected by E. A. Gold- 

 man, April 24, 19 12. Original number 21637. 



General characters. — Closely allied to D. punctata isthmica, but 

 size larger and general color darker; top of head blacker; long 

 hairs on rump lacking- basal annulations usually present in D. p. 

 isthmica, the tips very pale buff or silvery gray in contrast with 

 orange buffy back (rump and back more nearly uniform in D. p. 

 isthmica). Somewhat similar to D. colombiana, but general color 

 much more ochraceous, less grayish. 



Color. — Top of head, nape and shoulders black coarsely mixed 

 with varying shades of pale buff or ochraceous, the black predomi- 

 nating on top of head ; back heavily overlaid with rich orange buff, 

 the long hairs here dark and without rings below the broad orange 

 buff tips; long hairs of rump dusky basally and tipped with pale 

 buff or silvery gray, the general color thus contrasting with the 

 richer tints of back ; under parts in general mixed black and varying 

 shades of buff, becoming grayish on throat, and white or silvery gray 

 on lips, chin, inguinal region and along median line of abdomen 

 where the hairs are pure white to roots ; feet black with a few buffy 

 banded hairs on proximal portion of metatarsus. 



Skull. — Similar to that of D. p. istJunica, but larger; palate with a 

 short posterior median projection, absent in D. p. punctata and the 

 more northern forms of the group, but sometimes present in D. p. 

 isthmica. Differing from that of D. colombiana in more slender 

 rostrum and lesser vertical extent of anterior part of jugal ( in D. 

 colombiana the jugal, more developed upward along the orbital 

 border, approaches the lachrymal). 



Measurements. — Type: Total length, 610 millimeters; tail verte- 

 brae, 25 ; hind foot, 133. Average of two adults from Cana (near 

 type locality): 579 (572-586); 25.5 (21-30); 128.5 (127-130). 

 Skull (average of three adults from type locality and vicinity) : 

 Greatest length, 115. 3 (113-117.8); condylobasal length, 112.8 

 (105.6-118.8) ; zygomatic breadth, 53.3 (51.5-55.5); nasals, 45.5 

 (44.5-47.2) ; interorbital breadth, 31.5 (29-34) ; palatal length, 58.9 

 (57.2-60) ; maxillary toothrow, 19.3 (18.5-20.8). 



Remarks. — Contrasted with D. p. isthmica of the Canal Zone the 

 Darien representative of the D. punctata group differs in characters 

 which seem to set it off as a fairly well marked geographic race. It 



