1904.] Allen, The Tamandua Anteaters. 395 



Measurements. Total length, 1185; head and body, 585; tail, 600; 

 hind foot, 95. Three adults, all females, measure, total length, 1178 

 (1155-1195); head and body, 598 (583-627); tail, 580 (568-600); 

 hind foot, 94 (93-95). Skull, occipito-nasal length, 133; width of 

 braincase, 42; length of nasals, 55 (much longer than width of brain- 

 case). Four skulls measure, total length, 127.5 ( I22 ~ I 33)" width of 

 braincase, 41 (40-42); length of nasals, 47.2 (43-51). 



The present form is especially characterized by the narrow 

 and tapering form of the skull anterior to the braincase. In 

 size it agrees well with the Chiriqui form, described below, 

 but in coloration the light area is clearer white, and the form 

 of the skull is strikingly different. 



The relation of Cope's Myrmecophaga sellata (Amer. Nat., 

 XXIII, 1889, p. 133), founded on a somewhat imperfect skin, 

 without skull, from "Honduras/' to the present form cannot 

 now be determined. His description of the color and mark- 

 ings of this specimen does not, however, agree well with the 

 present series from Vera Cruz. 



Tamandua tetradactyla chiriquensis, subsp. nov. 



Fig- 4, P- 39- 



Type, No. 18883, ? ad.; Boqueron, Chiriqui, Panama, Oct. 16, 1901; 

 coll. J. H. Batty. 



Size large; length of tail about equal to length of head and body. 

 Dark areas deep brownish black; light areas dull brownish buffy white, 

 instead of nearly clear white as in T. t. tenuirostris , more deeply colored 

 on the nuchal-interscapular region. The black extends for nearly 

 four inches on the basal portion of the tail, but mixed more or less with 

 light hairs. The light median dorsal stripe terminates considerably 

 in front of the hips. Two other specimens are similar, with the black 

 on the base of the tail equally extensive but clearer black. 



Measurements (type). Total length, 1180; head and body, 610; 

 tail, 555; hind foot, 100; ear, 50. Two other females, not fully adult 

 {as shown by the skulls), measure, respectively: Total length, 1120, 

 1165; head and body, 540, 580; tail 580, 600; hind foot, 90, 90; ear, 

 40, 45. Skull (type), occipito-nasal length, 132.5; width of braincase, 

 42; length of nasals, 55. Another younger skull (female) measures a 

 little less, as follows: Occipito-nasal length, 129; width of braincase, 

 41 ; length of nasals, 51. 



An adult female from the Rio Cauquita, southwestern 

 Colombia, is exactly like the Boqueron specimens in size, 



