54 PROCEEDINGS OF THE ACADEMY OP 



Dimensions of $. Length from end of muzzle to vent 4" 9'"; from muzzle 

 to behind tympanum \ ,f 8 /// ; of anterior extremity V 9 /// ; of posterior 

 6" V". 



Color above stone brown in alcohol, with traces of two paler dorsal bands. 

 Tubercles fulvous-tipped ; extremities shaded with the same. Below whitish, 

 immaculate. 



Habitat. California. Mus. Smithsonian, 3695. From Fort Reading, lat. 

 40 20'. 



S. holbrookii Baird, Rept. Surv. Pac. R. R., v. x. Lieut. Abbot's Rep., pt. 



iv., p. 12, pi. XXVIII. f. 1. 

 Rana holbrookii Harl., Med. and Phys Res., 1835, p. 105. 

 Scaphiopus solitarius Holb., N. Am. Herp., 183(3, vol. i., p. 85. pi. XII. Ibid 



(edit, alt.) 1842, iv. 109, pi. XXVII. Tschudi, Mem. Neuchatel, i., 



1838, p. 83. Dum., Bibr., Erp. Gen., 1841, viii., 473. Le Conte, Pr. A. 



N. S. Phil., 1855, 429. Gunth., Catal. Batr. Sal. Brit. Mus., 1858, p. 38. 



Head large, maxillary outline rounded. Profile of front a rather steep descent 

 from the swollen occiput, where the skin is thin, closely adherent and penetra- 

 ted by osseous granules. Ejes prominent ; tympanum distinct, half its extent 

 vertically elliptic. Tongue large, elongate, emarginate. Choanse equal or 

 larger than ostia pharyngea; vomerine teeth in two fasciculi between and 

 opposite their posterior borders. Paratoids small, rounded, prominent ; no 

 gland on the tibia; one on each side of the thorax near the axilla. Skin of 

 back minutely tuberculous; of sides more coarsely ; below nearly smooth. 

 Cuneiform process longer than in any other species of the genus, but not more 

 prominent. 



Dimensions of $. 5 // 8 r// from end of muzzle to vent; from same to poste- 

 rior border of tympanum 2 // V" ; length of anterior extremity 3 // 3 /// ; of 

 posterior 12 // 5 /// . 



Color above, in spirits, either earth-brown, fulvous-brown cr ashy-brown, 

 with a pale ashy band from each orbit; these converge on the interscapular 

 region, then diverge, and converge again on the coccyx. These bands are 

 rarely unbroken, and are sometimes exceedingly indistinct; they sometimes 

 inclose a pale area. Sides sometimes marbled with pale asli, sometimes uni- 

 form. Sometimes a pale interorbital crossband, sometimes two longitudinal 

 bands on muzzle. A vertical light line on end of muzzle. 



Habitat. From Massachusetts into Florida and Mississippi. 



Specimens in Mus. Smithsonian from Cambridge, Mass., are nearly unicolor, 

 while Floridan forms are lightest and most variegated; the head seems to be a 

 little broader and more obtuse. These forms graduate into the intermediate 

 and most common type. 



AMBLYSTOMIDJ3. 



Spelerpes chiropterus Cope, sp. nov. 



Head elongate oval ; muzzle prominent, truncate, as broad as length of 

 antebrachium. Series of palatine teeth arched, commencing behind the choa- 

 nal. Anterior limb extended forward, reaches orbit. A prominent wing-like 

 rudimeDt only of the inner digit on both pairs of extremities. Thirteen lateral 

 folds between axilla and groin ; the extended posterior limb reaches the sixth, 

 counting fiom the groin. Soles broad, smooth. Tail cylindrical, rapidly 

 tapering, one-fifth longer than head and body. 



Length from muzzle to vent 3" 1'"; from muzzle to axilla 12 //P/ ; length of 

 tail 4". 



Color, brown above, paler medially ; dirty white below. 



Habitat. Mirador. near Vera Cruz, Mexico. Sent by Dr. Sartorius to the 

 Smithsonian Institution. 



This is the third species of Salamander known to inhabit Mexico. Tn its 

 characters it approaches the genus Batrachoseps Bonap. One of Dr. Sartorius' 

 most interesting disco veiies. 



[Mar. 



