Mearns The American J</iirx. 141 



series, measured on alveoli, 41), 08.0; crown of upper carnassial tooth, 

 25.8 by 13.7. 26.5 by 18.0; crown of middle upper premolar, 17.5 by 0, 18 

 by 9. 



Felis hernandesii (Gray). 



MAZATLAN JAOUAK. 



dun hernandesii Gray, Proc. Zool. Soc. London, 1857, p. 278, 

 Mamm. pi. LYI1I (colored). Type from Mazatlan, State of Sinaloa, 

 Mexico. 



Feli* onca Alston, Biologia Centrali-Americana, Mammalia, 1879-'82, 

 p. 58. (Part.) 



Character*. Size larger than FeMs central, smaller than F. onca. 

 Coloration pale, with black markings greatly reduced in size, on a ground 

 color of ochraceous buff, the black-bordered rosettes being confined to 

 the upper portion of the middle dorsal region and elsewhere broken up 

 into isolated spots. 



Color. Ground color ochraceous buff. The pattern of the black 

 markings is quite different from Feli* onca and F. centralist, as pointed 

 out by Doctor J. E. Gray (P. Z. S., 1857, p. 278) and shown in his ex 

 cellent colored figure, taken from the living animal. He states that 

 "instead of the spots being all placed in rings or roses, as they are 

 usually called, the spots on the front part of the body are single and 

 scattered, and those on the hinder part of the body are alone placed in 

 rings or roses." Later (P. Z. S., April 11, 1867, p. 1402), Gray continues: 

 "The specimen which I described under the name of Leopard us hernan- 

 defiii * * * has come into the British Museum collection; and I can 

 not find any difference in the skull to distinguish it from the other 

 specimens of the Jaguar; so I suppose it must be considered one of the 

 varieties of that species, marked by the distance at which the small 

 spots are placed from each other, only now and then forming anything 

 like a distinct ring or row of spots." The skin described below, lent me 

 by Doctor A. K. Fisher, is essentially a topotype, collected at Cacalotlan 

 (near Mazatlan), in the State of Sinaloa, Mexico, by Mr. Edward W. 

 Nelson. In this specimen, the chain of black markings along the ver 

 tebral line is disorganized anteriorly, and consists of paired round or 

 elliptical spots, more or less fused and irregular on the posterior half of 

 body, and traceable to the middle of the tail as a dorsal series of nar 

 rowly-elongate, black spots: it appears as a narrow, interrupted line on 

 the crown and neck. The rosettes are restricted to the region behind 

 the shoulders, and, even there, are mostly broken up into scattered spots; 

 and they do not tend to completely encircle light areas, which latter 

 seldom contain black spots. The rosettes become vague after the first 

 two or three rows, disappearing in a succession of scattered spots upon 

 the sides so that it is impossible to count the number of rows, as is 

 easily done in Felis onca and F. central, though the number of rows 

 suggested by the scattered spots is obviously greater than in those 



