NATURAL SCIENCES OF PHILADELPHIA. 103 



black below, dorsal region yellow to orbits, with black spots ; sometimes form- 

 ing a median band 0. carbonarius. 



" Body short, stout ; plicse ? ; bead width more than one-sixth length to groin ; 

 black, with pale specks, which may form series or not" (Peters). 



0. adspersus. 



Body short, stout; twelve costal plicte ; vomerine series commencing within 

 inner nares ; width of head less thaii five times in length to groin ; black 

 above ; brown, white speckled below 0. rufesc e n s. 



OEdipus morio Cope. 



Geotriton carbonarius (black variety) Cope, Proc. Ac. Nat. Sci. Phila. 1868, 

 313. 



This species is near the G. carbonarius, and differs almost entirely in 

 its free terminal phalanges, shorter body, and in coloration. 



The muzzle is slightly truncate and the head flat, and not so wide as in G. 

 fuscus; its width enters the length to the groin 5-33 times, indicating a 

 shorter body than in 0. carbonarius. The plicas of the sides are, how- 

 ever, equal in number and well marked. Similar folds mark the sides of the 

 tail. Those behind the eye are similar to those of G. fuscus, but less 

 marked. The vomerine series are well arched, and nearly meet medially; 

 they are nearly approached by the prolonged poimt of the parasphenoid 

 patches, which together form a triangle, with the (posterior) basal angles 

 rounded. The patches are separated by a groove for only about half their 

 length. The distances between inner and outer nares are the same. The end 

 of the muzzle projects beyond the mandible. 



The limbs appressed leave two intercostal intervals between them. The in- 

 ner toe is not free on either foot ; one phalange of the others is free, »xcept the 

 median, where 1^ phalanges project. The free termination has a rounded 

 thickening below. 



Tail thickened, round, tapering. 



Color. Black above ; leaden black below ; the under surfaces and lower 

 parts of sides, with outer faces of limbs, speckled with indistinct whitish dots. 



Measurements. No. 



Inches. 



Length (axial) from end muzzle to orbit '105 



" " " canthug oris '22 



" " " axilla. -63 



" " '< groin 1-66 



" " " end vent 1-94 



" " " end tail 3-29 



" fore limb , "45 



" " foot -145 



" hind limb , '45 



" " foot 17 



Width " " (sole) -IV 



" head -28 



" body -28 



" sacrum "22 



The only specimen I have ^een is the following: 



No. 6888, 1 specimen. Mountains of Guatemala, Dr. Van Patten. 



(EoiPtTS CARBONARIUS Cope. 



Proceed. Ac. Nat. Sci. Phila. 1860, p. 373. 



? ^^ Salamandra platyclactyla Cuvier, Mus. Paris," not described. 



?" (Edipus platydactylus Tschudi, Classif. der Batrachier, p. 93, 1838, not de- 

 scribed, 



Bolitoglossa Mexicana Dumeril, Erp. Gen. vol. ix, p. 93, 1854 (specimens from 

 Vera Paz) pi. 105, fig. 1. 



1869.] 



