20 ZOOLOGY, 



sometimes 1 ; post-orbitals 3 or 4. Frequently a supplemental plate before the vertical. Dorsal rows of scales 29 to 35, the 

 seven outer rows smooth. Head spotted with black ; transverse frontal bar from one orbit to the other, well marked ; the 

 oblique post-orbital stripe rather narrow. Color of the body whitish yellow ; a dorsal series of 45 65 subquadrate blotches 

 from head to anus, transversely elongated posteriorly ; 3 or 4 smaller series on each side. The lateral blotches longitudinally 

 elongated near the head ; vertically elongated posteriorly, where they form a series of jet black vertical bars. Ten or fifteen 

 transverse black bands on the tail. Abdomen yellow with an external series of black spots on each side. (KKNNICOTT.) 



Nos. 1547 1522. Lt. Beckwith. 



MASTICOPHIS TAENIATUS, B. & G. 

 PLATE XXIII. 



Lcptophis tacniata, HAI.LOWELL, Pr. A. N. Sc. VI, 1852, 181. 

 Masticopkis tacniatus, B & G., Catal. Serp., 1853, 103. 



A broad brown dorsal stripe margined by a darker line. The four outer rows of scales on each side yellow, with a dark line 

 through the centre of each. A dark line along the edge of the abdomen, making six dark lines on each side. Beneath yellowish. 

 Dorsal rows 15, tail about one-third the total length. 



1984, 1980. Utah. Lt. Beckwith. 



BUFO WOODHOUSII, Girard. 



Bufo dorsalis, HALLOW, Pr. A. N. Sc., VI, 1852, 181. IB. Sitgreaves Rep., 1853, 142; pi. xix. 

 Bufo woodhousii, GIRAKD, Pr. A. N. Sc., VII, May, 1854, 86. 



SP. CH. Head short and thick ; upper central surface but little depressed, not to say grooved ; the suborbital ridge being 

 slightly elevated. The occipito-temporal ridge is thicker, and hence a little more conspicuous. Snout rounded, nostrils terminal. 

 Mouth wide, upper jaw emarginated. Tympanum and parotids of moderate size. Limbs rather short and stout. First finger 

 much longer than the second. A large metacarpal disk. Toes semipalmated. Two metatarsal tubercles, a very large and a 

 very small one. No membranous fold at the inner lower edge of the tarsus. Papillae of medium size upon the back. Inferior 

 surface, with rather small and crowded granular warts. Above dark brown, with numerous lines of yellow. A dorsal yellowish 

 vitta running the whole length of the body. Transverse blotches of black upon the thighs and fore arms. Beneath ochraceus. 

 ( GIRAKD.) 



2641. Upper Arkansas. Captain Beckwith. 



AMBLYSTOMA MAVOKTIUM, Baird. 



Ambyostoma mavortium, BAIRD, J. A. N. Sc., 2d series, I, October, 1849, 28. 



4062. Rocky mountains. Captain Beckwith. 



SIREDON LICHENOIDES, Baird. 



Siredon lichenoides, BAIRD, Pr. A. N. Sc., pi. vi, April , 1852, 68. IB. Stansbury s Report, 1852, 336; pi. i. 



40*76. Rocky mountains. Captain Beckwith. 



