OPHIDIA, llept. 15 
Galapagos Islands described and figured by Steindachner, Festschr. 
z.-b. Ges. Wien, 1876, p. 306, pi. i. 
Psammophis leithi^ Gthr., and Taphrometopon lineolatum^ Brandt ; 
specimens described by Blanford, 1. c. pp. 421 & 422 ; the last named 
snake noticed by Strauch in Prejevalsky’s Mongolia, ii. pt. 3, 
p. 51. 
(Psammophis) Tomodon lineaUis, D. & B., T. vittatus^ Peters, and T. 
pulcher^ Cope, redescribed from specimens recently obtained from 
Mexico and Guatemala ; F. Bocourt, J. Zool. v. pp. 21-23. 
Leptopliis (Bruginosus, p. 132, pi. xxviii. fig. 9, and saturatuSy p. 133, 
pi. xxviii. fig. 10, Costa Rica (the generic name retained for species 
included by Bell which are not AhcetullcB), L. ortoni, p. 177, Middle 
Amazon, spp. nn.. Cope, Z. c. 
Dendrophis gracilis ^ sp. n., W. Macleay, P. Linn. Soc. N. S. W. i. 
p. 15, Queensland. 
Dipsas rhinopoma, Blanf. (1874), figured; W. T. Blanford, 1. c. pi. 
xxviii. figs. 2 a &.h. 
Leptognathus argus, pi. xxvii. fig. 1, and pictiventris, pi. xxviii. figs. 7 
& 8, p. 130, Costa Rica, spp. nn.. Cope, 1. c. 
Trimorphodon collariSy sp. n.^id. 1. c. p. 131, Orizaba, "Vera Cruz. 
Loxocemus sumichrastiy sp. n., F. Bocourt, J. Zool. v. p. 344, and Ann. 
Sci. Nat. vii. (6) iii. Art. vii. Tehuantepec. 
Liasis amethystinus, Schn. W. Peters figures the head and throat of 
a var. timoriensis ; MB. Ak. Berl. 1876, pi. figs. 2 & 3. 
Xiphosoma annulatum, pi. xxviii. fig. 6, Costa Rica, and ruschenhergeri, 
Panama, p. 129, spp. nn.. Cope, 1. c. 
Eryx jaculuSy L. Notice of this species, the Asiatic examples of which 
seem always to have the scales of the tail less strongly keeled than the 
African ; W. T. Blanford, Z. c. p. 401. 
Naia annulata, sp. n., W. Peters, MB. Ak. Berl. 1876, p. 119, W. 
Africa. 
Crotalus. Apparent decrease in numbers on the western plains, 
p. 513. Cope’s synopsis and list of species reduced from 18 to 15. 
Caudisona pyrrhiis, Cope, figured, pi. xxii. Yarrow, in Wheeler’s 
Report, Z. c. pp. 529-536. 
On the capture of Rattle-snakes and their pretended association with 
marmots and owls ; A. Trecul, CR. Ixxxiii. p. 603. 
Trigonocephalus blomhoffi, Boie, noticed by Strauch in Prejevalsky’s 
Mongolia, ii. pt. 3, p. 52. 
Halys pallasi, Gthr., redescribed; W. T. Blanford, Z. c. p. 430. 
Lachesis stenophrys, sp. n., Cope, Z. c. p. 152, Costa Rica. 
Bothrops microphtlialmuSy sp. n., id. 1. c. p. 182, Peru. 
Bothriopsis proboscideus, sp. n., id. 1. c. p. 150, pi. xxviii. fig. 13, & 
pi. xxvii. fig. 3, Costa Rica. 
Bothriopsis. Bothriechis, Porthidium, and Bothriopsis, Cope, are not 
natural sub-divisions; synopsis and comparative characters of B. 
lansbergii, Schl., brachystoma, Cope, and nasutus, Boc. F. Bocourt, 
J. Zool. V. pp. 24-26. 
Vipera euphratica, Martin, mauritanica, D. & B., Strauch, = obtusa, 
