opiJimA. 
Rept 13 
O.tyrrhina maculata, Jan, figs. 2-4. 
Stenorrhina degenhardti^ Berthold, var. Jau, fig. 5, vai\ quinque- 
lineata, Jan, fig. 6. 
Rhinochilud lecontii, Bd. & Gir., pi. iii. fig. 1. 
Ilcterodon platyrrhinas, Latr., fig. 2, dorhigyiii, D. & B., figs. 3 & 4, 
semicinctup, D. & B., fig. 5. 
Xenodon {Liosophis) gigas, D. & B., fig. 6. 
Periops Jiippocrepis, L., pi. iv. fig. 1, algira^ Jan, fig. 2, neglectus, Jan,, 
figs. 3-5. 
Spilotes corais, Cuv., fig. 6, & pi. v. fig. 1, mclanurus, D. & B., pi. V 
fig. 2^ pcecilostoma, Neuw., figs. 3 {Dipsas dieperincki^ Schl.) & 4. 
Coryphodon constrictor^ L., pi. vi. fig. 1, wxv.fiaviventris^ Say, fig. 2. 
Zamenis dahli^ Fitz., fig. jlorulcntnt^ G. St. H., fig. 4, viridijlavus, 
Wagl., figs. 5 3c 7, \ar, per'sica, Jan, fig. 6. 
E. D. Cope, J. Ac. Philad. (n.s.) viii. — 1. On the Reptilian fauna of 
Costa Rica, based chiefly on the collections made by W. Gabb & Dr. 
von Patten; 2. On the Reptiles collected by J. Orton in the Middle 
and Upper Amazon and Western Peru, — describes and figures a large 
number of Snakes from these and other American regions. The copious 
notes and redescriptions of species already known to science are too 
numerous to be severally recorded. The new species of Oqjhidia, 26 in 
number', are referred to below. 
Typldops Blanf. (1874), figured; W. T. Blanford, Eastern 
Persia, ii. pi. xxvii. figs. 5 a & b. 
Stenostoma phenops, sp. n., E. D. Cope, 1. c. p. 128, Tehuantepec. 
■ Platyplectrurus hewstoni, sp. n., R. H. Beddome, P. Z. S. 1876, 
p. 701, Wynad, elevation 2700 feet. 
Catostoma psephotiim, sp. n., E. D. Cope, 1. c. p. 146, Costa Rica. 
Aspidura guentheri,- sp. n., W. Ferguson, P. Z. S. 1876, p. 819, Ceylon. 
Cycloqdiis {Ablahes, Gthr.) modestus, Martin: specimens described, 
with remark that Tyria argonauta, Eichw., is distinguished by having 
two prae-oculars. W. T. Blanford, 1. c. p. 404. 
Cyclophis {Ahlahes^ Strauch) collaris, Menetr., description of specimen 
from Teheran. Id. 1. c. p. 405. 
Cyclophis {Eirenis, Jan) fasciatus, description of specimen. Id. l. c. 
p. 406. 
Cyclophis persicus, Anders. (1872), figured; id. Z. c. pi. xxviii. figs, 
la & h. 
Lygophis ptcecilostonius, sp. n., E. D. Cope, 1. c. p. 180, Peru. 
Rhadinea f ulvivittis, sp. n.,id 1. c. p. 139, Orizaba, Vera Cruz. 
Geagras rediniitus, sp. n., id. 1. c. p. 141, Tehuantepec. 
Tantilla himaculata, Mazatlan, rubra., Tehuantepec, canula, Yucatan, 
pp. 143 & 144, T. cajnstrata^ p. 181, Peru, spp. nn., id. 1. c. 
Contia pachyur a, p. 145, calligaster, p. 146, pi. xxviii. fig. 12, Costa 
Rica, spp. nn., id. 1. c. 
1876. [voL. xiii.] D 2 
