ornithosauriA, mnosauria. 
Kept. 27 
Crotalus horridus , L., pi. ix, adamanteus , Pal. de Beauv., pi. x, lepidus , 
Kenn., pi. xvi, and mitchelli , Cope, figured by Stejneger, £. c. C. 
enyo , Cope, and mitchelli , Cope : notes by Van Denburgh, P. Calif. 
Ac. (2) y, pp. 157 & 159. C. omiltemanus , p. 192, pi. lviii, fig. c, 
guerrero , Mexico [= C. triseriatvs , Wagl. — R ec.], pallidus , p. 193, 
pi. lix, fig. b, City of Mexico [= ( 7 . triseriatus , Wagl. — R ec.], and 
salvini , p. 193, pi. lix, fig. A, Huamantla, Mexico [= C. scutulatus , 
Kenn. — R ec.], n. spp., Gunther, ojl c«'A C.pricei, n. sp., Van Den- 
burgh, P. Calif. Ac. (2) v, p. 856, Arizona. 
On formation and loss of segments of the caudal appendage in Rattle- 
snakes ; Mole, J. Trinidad Club, ii, p. 189. 
ORNITHOSAURIA. 
Pterodactylus elegans, Wagn. : on variations in the proportions of the 
fore-arm and metacarpus ; Boule, Bull. Mus. H. N. 1895, p. 172. 
Ornithostoma ingens , Willist. : on the mandible ; Williston, Kansas 
quart, iv, p. 61, pi. i. 
DINOSAURIA. 
O. C. Marsh, Amer. J. Sci. (3) 1, p. 491, proposes the following modifi- 
cation of his previous classification of the Dinosaurs, which are 
divided into 3 Orders : — 
I. TiiERorODA. MegalosaitridcCy Dryptosauridce , Ldbrosauridce , 
Plateosauridce , A nchisauridcc. 
A. Cieluria. Coduridic. 
b. CoMrsoGNATHA. Compsognathidcc. 
c. Ceratosauria. Ceratosauridce , Ornithomimidce. 
d. Hallopoda. Ilallopidce. 
II. Sauropoda. Atlantosauridce, Diplodocidce , Morosauridce , Pleuro- 
ccelidce , Tilanosauridce. 
III. Prasdentata. 
a. Stegosauria. Stegosaur idee , Scelidosauridce , Nodosauridce. 
b. Ceratopsia. Ceratopsidce. 
C. Ornithopoda. Camptosauridce , Laosauridce , Uypsilopho- 
dontidee , Iguanodontidce , Trachodontidce , Claosauridai , 
Nanosauridce. 
Marsh, <. c. p. 407, pis. v-viii & x, gives restorations of the principal 
types of Dinosaurians of America and Europe. Also Rep. Brit. 
Ass. 1895, pp. 685-688. 
Iguanodon , Mant. : on a tooth from the Wealden of Schude near Lehrte, 
N. Germany ; Struckmann, Zeitschr. Deutscli. geol. Ges. xlvi, p. 828, 
figg. I. bernis8artensis, Blgr. : on the cast exhibited in the British 
Museum ; H. Woodward, Geol. Mag. (4) ii, p. 289, pi. x. 
Bothriospondylus madagascariensis , n. sp., Lydekker, Quart. J. Geol. 
Soc. Ii, p. 329, figg., Jurassic, Madagascar. 
