40 ZOOLOGY. 



CROTALUS CONFLUENTUS, Say. 



Crotalus conflventus, SAY, Long s Exped. II, 1823, 48. B. & G. Catal. N. Am. Serp. 1853, 8 

 Crotalus tecontii, HALLOW. Pr. A. N. Sc. VI, 1851, 8. 



SPFC CHAR. Plates on crown irregular, angulated, imbricated, and frequently tuberculated, smoother and less elongated 

 than in C. atrox. Three, rarely four, rows of scales between ths sub-orbital series (which extends to the centre of the orbit) 

 and the labials. Labials 14-18 above, 14-18 below. Dorsal rows of scales 25-29. Dorsal blotches brown, margined by narrow 

 whitish lines, sub-quadrate, emarginate before and behind ; posteriorly intervals greater and spots transversely quadrate, 

 ultimately becoming twenty-five to thirty half rings. Colors not deeper posteriorly in old specimens. Two transverse lines on 

 superciliary enclosing about one-third, sometimes obsolete. Light stripe from orbit below superciliary to angle of jaw passes 

 angle of mouth on the second or third row of scales above the labials. Rostral margined with lighter. (Kennicott.) 



No. 291. Canadian river. B. Mollhausen. 



CROTALOPHORUS MILIARIUS, Holbrook. 



Crotalus miliarius, LINN. Syst. Nat. I, 1766, 372. 



C i otaluphorus miliarius, HOLBROOK, N. Am Herp. Ill, 1842, 25; pi xv. B. & G. N. Am. Serp. 1853, 11. 



SPEC. CHAR Twenty-one to twenty-three dorsal rows of scales all carinated, the two lateral rows but slightly. Greyish ash 

 with black blotches A vertebral reddish line. Vertical plate obtuse posteriorly, widening but little anteriorly, slightly concave 

 on the sides. A narrow white line from the lowest point of the orbit passes obliquely backward to the angle of the mouth. 

 (Kennicott.) 



No. 489. Fort Smith, Arkansas. B. Mollhausen. 



TOXICOPHIS PISCIVORUS, B. & G. 



Trigonocr.phatns piscirorus, HOLBROOK, N. Am. Herp. 1st ed. II, 1838, 63; pi. xiii. IB. 2d ed. Ill, 1842, 33; pi. vii. 

 Toxicopkis piscivorus, B. & G. Catal. N. Am. Serp. 1853, 19. 



SPEC. CHAR. No loral. Inferior wall of orbit constituted by third labial. Twenty-fi,ve dorsal rows. Dark chestnut brown, 

 with indistinct vertical dark bars. Line from superciliary along the edge of the head, through the middle of the second supra- 

 labial row. A second line from the lowest point of the orbit parallel to the first. 



No. 823. Fort Smith, Arkansas. B. Mollhausen. 



EUTAENIA PROXIMA, B. & G. 



Cohihcr proxim-is, SAY, Long s Expedition, I, 1823, 187. 

 Eutainia proxima, B. & G. Catal. N. Am. Serp. 1853, 25. 



SPEC. CHAR. Body stouter than E. saurita or E. fairvyi. Brown or blackish above. Three longitudinal stripes; the dorsal 

 ochraceous yellow or brown ; lateral greenish white or yellow on the third and fourth lateral rows. Dorsal stripe one and over 

 two half scales wide. Lateral row of scales usually the color of the abdomen. Total length about 3^ times that of the tail. 

 Dorsal rows 19. (Kennicott.) 



No. 7G2. San Antonio, Texas, 742. Between Pecos and Rio Grande. Dr. Kennerly. 



EUTAENIA DORSALIS, B. & G. 



Eutainia dursalis, B. & G. Catal. N Am. Serp. 1853, 31. 



Dimensions of E. sirtalis. Color olivaceous green. Dorsal stripe broad, whitish yellow, margined with black. A row of spots 

 ab..ve the lateral stripe. Lateral stripe on second and third rows. Dorsal rows 19. 



No. 978. Fort Conrad, New Mexico. Dr. Kennerly. 



