MAMMALS O 



yH CAKIACUS VIKG1NIA.NUS VAK. 



75 



mottlings of the muzzle just behind the dark band referred to, but no dis- 

 tinctly light ring. The under surface of the head is white." 



The under jaw of the buck taken by Dr. Rothrock measures 7f inches 

 from the back of the condyle to the ends of the incisors. The skull of the 

 doe gives the following measurements : 



Indies and decimals. 



Occii>il;il oondylcs to apex of iutermaxillarics 8.25 



Back ufmaiidibnlar coudylcs to ( uds of incisors G.90 



Apex of coronoid to ends of incisors 7.50 



lleifjht of coudyle above an^Ic of jaw 3.25 



Width ot skull across orbits 3.75 



Interzygomatic width 3.50 



Interparoccipital width 1.75 



Length of nasal boues 2.05 



Specimens. 



This is the animal carefully described by Professor Baird in 1858 as C. 

 mexicamis, Gm. ; but he applied this name provisionally, remarking that 

 there was some doubt whether it was the true C. mexicanus of authors or not. 

 According to the descriptions, the C. mexicanus, to which is ascribed a range 

 from Mexico to Brazil, appears to be distinct from C. virginianus ; but the 

 present animal is beyond doubt only a small southern form of that wide 

 ranging species, to which it must unquestionably be referred. Dr. Rothrock's 

 specimens fix its characters with the desired precision ; but further compari- 

 sons with more material from Mexico and Central America will be required 

 to establish its relationships to the small deer of those countries. Should it 

 prove distinct from these, it may bear the name applied to it in Dr. Rothrock's 

 MSS. ; but at present we are indisposed to formally recognize this designa- 

 tion. 



The foregoing account may be properly supplemented by the notice 

 published recently by Dr. Rothrock in the " American Sportsman," which 

 gives measurements taken in the flesh, and various interesting particulars res- 

 pecting the general appearance and habits of this deer. 



