Jiatliven—Description of a Nem BdsilisniH fro'in Colombia. 11 
spots on tho biiso (;ilso n'lnmints ol' cross burs). A dull ytdiow stripe 
Iroin above tlu; (‘ai' to tb(‘ anal region, \V(‘II (l(‘rnied on the iK'ck, nior(' 
obscure but ilistin>jnishable on tiu' body; a broad white band I'roni the 
maxillary protul)erances to tiui fon' limb. Tail dark l)ro\vn basally, this 
color encroaclnno' broadly and irregularly on the palm- ci-(“.st, distally with 
alternatin.u'bands ot' pak* olive and dark ))rown. Ib'ail brownish olive, 
this color extending upon the bastm)f the crest; loix'of crest pale olive 
with bi'oad reti(;nl;dions of dark brown and a dark brown tip. pak* 
band from the superciliary region to above the ear, just indicated. Lower 
eyeliil whitish. Lower snrfaite of body and lind)S dull white more or less 
sntl'nsed with gray; chin, throat and breast white with blackish bands. 
Me(i.'<turiiienttt . — Total length, (It)? mm.; head length, mnt.; head 
width, lid mm.; length of head (a-est,* oS mm.; greatest height of dorsal 
crt‘st,t -to mm.; greatest height of tail crest, 32 mm.; head and body 
length, lt)d mm. ; length of fore liml), 78 mm.; length of hind limb, LSI 
mm. ; length of tail, 502 mm. 
Notes on parati/pes .—In })artly grown males the luanl crest has a form 
similar to that of the adults, i. c., it is not expanded and erect in the 
vertical plane, but more or less i-ibbon-like and dependent on the neck. 
The form of the crest diti'ers somewhat, however, in the dilLerent speci¬ 
mens, in that the {)OSterior margin of the base may be continued back¬ 
ward for a greater or less extent, thus reducing the relative length of the 
free tip. In a spt'cimen with a body length of 117 mm. the crest is indi¬ 
cated by a broad lobe folded on the occi])nt. In a specimen with a l)ody 
length of 138 mm. the lobe is diflerentiated from the base by longer and 
wider scales and has a free tip, the wdiole lying on the dorsal surface of 
the neck, and this form is maintained in larger specimens, the crest either 
Ixdng carried slightly al)ove the neck or lying flat on one side or the top, 
and when it reaches some length it is often twisted. A low })arietal 
ridge is present in specimens with a body length of 138 mm. and 144mm., 
but in older individuals it is only re[)resented by a short, low prominence, 
b(‘hind the pineal eye. 
In a skeleton the neural spines have the following development: Dor¬ 
sal spines Ki, increasing in length from the spine on the last cervical 
V(!rtel)ra, the twelfth the longest, the last four rapidly decreasing in size; 
the second to the sixth expanded (the third, fourth and fifth the most), 
the others slender, all strongly bent backward from the fourth; the spines 
of the last two lumbar vertebrae and the two pelvic vertebrae short and 
about ecjnal in length, the first bent caudad. Caudal si)ines elongated 
from the first, 24 in all, the tenth the longest, the last two minute. 
Remarks .—As previously stated, the writer can find no original descrip¬ 
tions that ai^ply to this form. In bis diagnosis of the species of Rasiliscus, 
Copet gives as the characters of R. goodridgii (Cray), “ one tassle-lik(' 
bead crest with small scales; more than one interorbital row; no longi¬ 
tudinal bands.” This description of the luaid en'st (hut not tIu' color) 
* Croni anterior a ngle on thi' liead. 
t Measureil along the spines, 
t Jour. .\c‘a<l. Nat. Sci., Pliila., 1875, p. 1-V>. 
