Jl 



r 



iiii: iJATRAcir.v or north amurica. 



199 



TIjo idopoitioiis oftlie fingers are as in iKJ'usea; they are entirely free. 

 Tiie eyes are prominent, witli tliieli oi>a(iiie paljtebrue. A tubercle oeeu- 

 pies tlie iinterior angle, wliicli, after an exiuninatioti of tliat in D./usca, 

 is i)roven to be a disMienibernient of the superior eyelid. 



The coloration is uniform in about twenty specimens examined. It 

 is simple, viz: Uniform blaclc above and below, except the muzzle from 

 between the eyes, the lower Jaw, the end of the tail, and the soles of 

 the feet, which are brown. 



Fi<i 



4 3 



.Irt. DfHinoijnrithiii' iii'i/rn 



Ni». 39'.':i. Ahbovill.', S. O.; }, f. 



MiiiaiiirmciilH (»/ No. '.V,^>'.\, in inches. 



Indies. 



I,i'n;;tli, ;ixi,il, from ciul of iiiii/zlc to oiliit 2'.) 



I,('ii«;tli, axial, from t'lid of iiiii/./'i^ to cuntliiis oris !'>rt 



l,('ii,;;lli, ;i\i.ii, from cud of iiiiiz/l(> to ax II In l.'J'J 



l.i'M;;lii, iixial, fiom ciui ol iiiii/zU^ to }iroiii ;t. i»;$ 



1/iijilli, axial, fioiM I'lul of muzzle to cml (.f voiit, I?. 7() 



l.c'ii^lli, axial, from t'lid of mtizzlt> to cud of tail (i. i)G 



I, CM Hill ol' fore liiiili (i!> 



l.eili;tll of fore foot i!(5 



l.cii^lli of liiiid liml) l.O'i 



I.eiiu'lli of liiiid fool 47 



Willi li of hind -fool sole 27 



Willi li lici wccii cyc.s ill front :iO 



Width at can 111 us oris Cm 



Will 111 of hoily 7't 



Will 111 of liody ;il sacriiiu ,')4 



ll(ihil>!, cIc.—TUis creature is aquatic; but iifter the fashion of the 7). 

 fiisca it occurs only in slmllow stony brooks. It is, so far its known, 

 conrincd to the AUeohiiny mountain ranges from Pennsylvania south- 

 w;»rds. It is abundant in the streams of the rocky ravines and cold 

 springs in the remotest depths of the forest, where its retreat is cool 

 and dark. It seeks .'.onceaime.it uiuler loose stones and sliibs of slate 

 with great activity, and is not easily caught. Its habitat does not seem 

 to be shared by any species but the D./tiRcn; the fijirinophilKH porpliji- 

 riticiis, the other characteristic Alleghany species, haunting standing 

 springs and bogs, where stones are not so numerous. Green described 

 it from Pennsylvania, but IJaird, who i.s familiar with the Alleghany 

 fauuiiof our State, says he has not observed it near Carlisle; nor have 

 :\ met with it north of Virginin, where it is common. Besides Green's 



I .' 



1 1 



4 





■ui 





