NATURAL SCIENCES OF PHILADELPHIA. 561 



196. D. margaritiferus Fitz. Herpetodryas margarilifcrus Schl. Leptophis 

 margaritiferus Dum. & Bibr. Zamenis tricolor Hallow. Dromicus (.') margariti- 

 ferus Gthr. 



One sp. Omoa, Honduras. Dr. Le Conte. 



One " Honduras. Dr. Woodhouse. 



One " Panama. Dr. LeConte. 



Three " Central America. Mr. Cuming, in ex. 



197. D. Boddaertii nobis. Coluber Boddcerlii Steetzen, 1795. Col. fuscus 

 Hallow. Proc. A. N. S. Phila. 1845,11. p. 241, nee Linn. Herpetodryas Boddcerlii 

 Schleg.,Dum. & Bibr., Gthr. 



Unicolor var. Two sp. Surinam. Mr. Wood. 



Two " Caraccas. Mr. Ashmead. 



One " ? Mr. Cuming, ex. 



One " Veragua, N. Grenada. Mr. R. W.Mitchell. 



Banded var. One " Caraccas. Mr. A. B. Durand. 



One " ? Mr. Cuming, ex. 



In the banded variety a light band runs along the fourth row of scales. In 

 our second specimen the light color of the abdomen involves the first two rows, 

 leaving a narrow brown band upon the third row, below the light one. 



198. D. Rappii nobis. Herpetodryas Rappii Gthr., Catal. Snakes Brit. Mus. 

 1858, p. 116. 



One sp. Caraccas. Mr. Ashmead, 



Two " ? ? 



b. Preoculars two, scales keeled. Dendrophidium Fitz. 



199. D. dendrophis nobis. Herpetodryas dc?idrophis Schleg., Gthr. H.Poitei 

 Dum. & Bibr. 



One sp. S. America. ? 



c. Preoculars two, scales smooth. Masticophis Bd. & Grd. 



200. D. flagelliform is nobis. Herpetodryas psammophis Schl. H. ftagelli- 

 formis Dum. & Bibr., Gthr. Psammophis flagelliformis Holbr. Masticophis flagelli- 

 formis Bd. & Grd. 



One sp. Georgia. ? 



One sp. Young. S. Carolina. Dr. Blanding, (" Coluber reticularis. ") 



201. D. t esta c eu s nobis. Coluber testaceus Say, 1853. Psammophis flavigu- 

 laris Hallow., 1852. Masticophis flavigularis et testaceus Bd. & Grd., 1853. Her- 

 petodryas flavigularis Hallow, et Gthr. (Quid Coryphodon testaceus? Gthr.) 



Three sp. Texas. Dr. Heermann. 



Two sp. Cross-Timbers, Ind. Ter'y. Dr. Woodhouse. 



Une sp. Cape St. Lucas, Lower Cal. Smithsonian Inst. 



In one of the specimens from Texas, the anterior part of the tail, and part of 

 the body are lustrous black ; in all three the teeth are of alight sea-green 

 color, at their bases. In the specimen from Cape St. Lucas, the head is deep 

 brown; alight line extends anterior to the eye, and one along the median 

 upper labials, which sends a vertical branch to the postoculars. Throat and 

 chin brown with yellow variations, anterior part of the body crossed for a 

 short distance by incomplete cross bands. (Vid. Hallowell, U. S. Pac. R. R 

 Surv. Rept. x. Williamson's Exp. Reptiles, p. 12.) 



202. D. taeniatus nobis. Leptophis tceniata Hallow. Proc. Ac. Nat. Sci. Phil. 

 1852, p. 181. Masticophis tceniatus B. & G. Cat. Serp. 1853, 108. Leptophis later- 

 alis Hallow. Proc. Acad. 1853, p. Masticophis Schottii B. & G. Cat. Serp. 1853, 

 p. 160. 



The fundamental pattern of coloration in this species consists in a unicolor 



I860.] 



