JAN., 1912. MAMMALS, VENEZUELA AND COLOMBIA OSGOOD. 57 



feet white except a slight extension of buffy and grayish on the tarsal 

 joint; inner sides of forefeet white, outer sides including the fourth and 

 fifth toes pale grayish; tail hair brown above, white below. 



Skull short, broad, and but slightly ridged ; parietals smoothly rounded 

 laterally; palatine foramina broad; palate with a median ridge, but no 

 lateral channels; pterygoid processes broad; teeth relatively large and 

 heavy; audital bullse actually and relatively larger than in P. guairce. 



Measurements. Type and one topotype, respectively: Total length 

 346, 341; head and body 196, 209; tail vertebrae 150, 132; hind foot 

 (c. u.) 45, 44. Skulls of same: Greatest length 49.1, 49; basilar length 

 34.9, 35; zygomatic breadth 24.7; 24.3; length of nasals 18.1, 17.6; 

 interorbital breadth 11.2, 11.3; interparietal 12x6.4, 12-5x7.1; dias- 

 tema 9.9, 10; postpalatal length 19.2, 19.2; palatal foramina 6.2 x 2.8, 

 5.7 x 3.1; width of pterygoid process 1.9, ; crowns of upper too throw 

 9.2, 8.8 



Remarks. The bright ochraceous or almost ochraceous buff color 

 of this species combined with its small size distinguish it from the other 

 forms of northern South America. Its closest relationship is perhaps 

 with P. guaira but it is readily distinguished by its paler color, nearly 

 pure white hind feet, and its small size. P. cherriei of the upper Ori- 

 noco evidently approaches it in size but is much darker in color. Prac- 

 tically all the other described forms are much larger. 



Our specimens were trapped about the roots of the wild pineapple, 

 locally known as maya and very abundant in the arid parts of the 

 northeast shore of Lake Maracaibo. 



Sylvilagus nigronuchalis continentis subsp. nov. Black-naped 

 Rabbit. 



Type from vicinity of Maracaibo, Venezuela. No. 18695 Field 

 Museum of Natural History. Collected Jan. 13, 1911, by W. H. 

 Osgood and S. G. Jewett. 



Characters. Very similar to S. nigronuchalis of the islands of Aruba 

 and Curagao but slightly more rufescent in color especially on the fore- 

 head and nose; ears more broadly tipped with black. Skull practically 

 as in nigronuchalis. Upper parts mixed with pale buffy or clay color 

 and black; interorbital region slightly more buffy or rufescent than 

 back; nape deep black extending in made skins about to the ends of 

 the laid back ears; ears ("proectote ") buffy brown except a grayish area 

 near the inner base and a broad intensely black tip ; a broad buffy ring 

 surrounding the eye except the anterior lower half; rump grayish; under- 



