BBPTILIA AND BATRACH1A. 
18 llept. 
Trachodon cantabrigiensis , n. sp., Lydekker, Q. J. Geol. Soc. xliv, p. 47. 
and Cat. Foss. Rept. i, p. 244, fig., Cambridge Greensand. 
Stegosaurus, Marsh. O. C. Marsh’s article on the Skull and Dermal 
Armour \cf. Zool. Rec. xxiv, 'Rept. p. 20] is reprinted in Geol. Mag. (3) v % 
pp. 11-15, figs., pis. i-iii. 
Oeratops , n. g., type of a new family, Geratopsulce , allied to Stegosaurus ■,» 
but differing especially in the presence of a pair of large horns on the 
upper part of the head. G. montanus, n. sp., Marsh, Am. J. Sci. (3) xxxvi,\ 
p. 477, pi. xi, Cretaceous (Laramie Formation) of Montana. Is probably 
identical with Polyonax, Cope ; Cope, Am. Nat. xxii, p. 1108. 
Priconodon crassus , n. g. & sp. : for a tooth of an herbivorous Dino- 
saur from the Potomac Formation ; Marsh, Am. J. Sci. (3) xxxv, p. 93, 
figs. 
Ccelurus gracilis i n. sp., id. t. c. p. 94, Potomac Formation, North 
America. 
Ccelurus longicollis , Cope, and bauri, Cope, are described and referred 
to Tanystrophceus , v. Mey. ; Cope, P. Am. Phil. Soc. xxiv, pp. 221 & 226. 
Tanystrophceus willistoni , n. sp., id. t. c. p. 227, Trias, New Mexico. 
Ornithopsis hulkii, Seeley : maxilla and tooth figured by Lydekker, 
Q. J. Geol. Soc. xliv, pi. iii. 
Thecospondylus daviesi , n. sp., Seeley, t. c. p. 79, figs., Wealden of 
Brook, Isle of Wight. 
Allosaurus medius , n. sp., Marsh, Am. J. Sci. (3) xxxv, p. 93, Potomac 
Formation, North America. 
Massospoiidylus carinatus (Owen, nom. nud.), n. g. & sp. : for bones of 
. Theropoda from the Karoo system of Basutoland, S. Africa, which agree, 
at least generically, with others from the Maleri beds of India ; Lydek- 
ker, Rec. Geol. Surv. Ind. xxi, p. 147, fig. 
Pleurocoelus , n. g., most nearly allied to Morosaurus , Marsh, for P. 
nanus, p. 90, figs., and altus , p. 92, n. spp. ; Marsh, Am. J. Sci. (3) xxxv, 
figs., Potomac Formation, North America. 
EMYDOSAURIA. 
Alligator raississippiensis , Daud. : notes on the nest and eggs ; F. 
Clarke, Zool. Anz. xi, pp. 568-570, and Ann. N. II. (6) ii, pp. 509-511. 
Isselosaurus , n. g., for Grocodilus doduni , Cuv. (foss.) ; Filiiol, Mem. 
Soc. G<§ol. (3) v, p. 174. 
Goniopholis lucasii , n. sp. (foss.), Cope, Am. Nat. xxii, p. 1107, Jurassic 
of Colorado. 
Oweniasuchus, n. n. for Brachydestes , Gw., nsc Cope, (foss.) ; A. S. 
Woodward, Geol. Mag. (3) ii, p. 506 (1885). 
Belodon buceros, Cope, p. 217, and scolopax , Cope, p. 221 : notes by 
Cope, P. Am. Phil. Soc. xxiv. The brain of Belodon buceros is described 
and figured, and compared with that of Alligator and Diadectes \ id. t. c. 
p. 219, pi. ii. 
Episcoposuurus , n. g., allied to Belodon, for E. horridus, n. sp. ; id. t. c. 
p. 213, Trias. New Mexico. 
