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44 



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LLETIN :)l, IINITKI) RTATKS NATIOXAI. Ml'SHUM. 



SU if:- 



nicnuis in tlic absence of the loii^Mtiuliiiiil .lernial fold on the si.h", aa.l of 

 the papilla' on tlie, ni»per surlac' of the hea 1. lii botii tiiesi- icspcets 

 ita;^ive.s with some siH'i:iiii>Mis fi'^ai Abbeville, S, C. (No. 7()0.">), already 

 refiM ivd to. I do not attacii niaeh importance to the abstMiee of tiie lat- 

 eral folds, as distension of the alidomen from any oMiise would be apt to 

 canse it to disappear. These two characters, however, with the brown 

 color, supplement the three important ones f-iven in the dia,unosis, and 

 c(»iifiim the propriety of recoj^iiizinj,' the species. Nevertheles-^. tiu' ob- 

 servaion of other specimens prescntin;;' the same features will be neces- 

 sary befoie the siiecies can be rejiarded as fully estalilislied. 



Tiieheiid hasthewi.lc, (1 ir form of t lie other species, with the very slim- 

 and broadly rounded mu/zle, but these characters are e\ ij>j;erated. 

 Thus the Icnjith from the end of the muzzle to the lines c.oiinecMii.j; the 

 anj^lcs orcauthusof the mouth entt'rs the greatest width of the head 

 loar times and a fraction ; while in the ('. ((Ilriihciiini.sis it is one-half tlir 

 liwuo. measurement of the width of the lu>ad, or even a little Ioii;^rr. 

 The sliortness of the <;ape as compared with its width is also indicated 

 by the fact that the canthus oris is below a j)oint anterior to the anterinr 

 canthusof the eye in the C./iihciih, while in the (\ (tllnilicnifiisis i\w nu<^\v 

 is below the posterior canthusof the latt /r. The eye is smaller than is 

 usual iu the C aUc(jhcntci}.sis, its lonj^ diameter entei'inj; the iidcroeulai' 

 Bpace a little over seven tiniL's; while in the more abundant species it en 

 ters five times to nearly six tiiru's. The extremity of the maxillary series 

 of teeth corresponds with the canthus of the month. TIm^ vonu-rincs 

 have only half us much length. The int.rnal nostril is a slit, nearly 

 closed, in line with the series of vomerine teeth at tiieir extremity. I 

 have not found it closed in tiiis way in any specimens of tlu^ ('. nlhulir- 

 nicii.sis. The characteristics of the toii,i;ue form one of tlu^ slroiij^cst 

 character* of this species, Its superior surface is covered with lai',n-e 

 truncate papilhe, so closely placed us to be everywliero in cont;icl. 

 Tliey are only distinguished, as in the human tongue, by Ixuiding the 

 surface. Xotliing like this is known in the other si)ecies. Here tlu^ 

 surface of the t')ngue is murked with longitudinal plica', separated by 

 considerable intervals, .wliich are tluunselves subdivided by smaller ami 

 lower plica', the general result being an appearance somethiMglike tripe. 

 The width between the external nares is half of that between the orbits 

 or the posterior nares. 



Thecrtptsof the skin of the superior surfaces are coarser than in 

 the r. aUcghcnicnsis, especially on the posterior half of the head. The 

 anteri(U- half of the latter is smooth. X.. trace of the double papilla' 

 is to be found on t'u', sii'iir.or surfaces, but they exi^t iu tlie arched 

 series rouiul the lower jaw below the lip, as in the other specie's, bnt 

 with thisdiflVrence: the papilhe one above the other ai'c net round, 

 but short longitmlinal keels, so as to be parallel to each other. 



The fingers are entirely free, ami the phalanges are, begM„ning^ on the 

 ninerside,'J, 2, ;5, -. The ala on the posten.u- edge of the n|.pcrann is 



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