14 Rept. 
REPTILIA AND J3ATRACHIA. 
DINOSAUBIA. 
G. Baur, Am. Nat. xxv, pp. 434-454, remarks on the Reptiles generally 
called Dinosauria , and, after reviewing the results of recent researches, 
expresses the opinion that the said group is an unnatural one, and con- 
tains three groups which ought to be called Iguanodontia , Megalosauria , 
and Cetiosauria. 
Marsh, 0. C. On the Gigantic Ceratopsidce (or Horned Dinosaurs) of 
North America. Rep. Brit. Ass. 1890, pp. 793-795, and Am. J. Sci. 
(3) xli, pp. 167-178, pis. i-x, and Geol. Mag. (3) viii, pp. 193-199 & 
241-250, pis. iv, v, & vii. 
Baur, G. The Horned Saurians of the Laramie Formation. Science, 
xvii, pp. 216 & 217. 
Triceratops elatus , n. sp., Marsh, Am. J. Sci. (3) xlii, p. 265, Laramie 
Formation, Wyoming. 
* Torosaurus , n. g. ( Ceratopsidarum ) for T. lutus and T. gladius , n. spp., 
Marsh, t. c. p. 266, Laramie, Wyoming. 
Stegosaurus ungulatus, Marsh : restoration by Marsh, t. c. p. 179, pi. ix, 
and Geol. Mag (3) viii, p. 385, pi. xi. 
Restorations of Triceratops prorsus, Marsh, and Brontosaurus excelsus, 
Marsh ; Marsh, Am. J. Sci. (3) xli, pis. xv & xvi. 
A Hops crassicornis , n. sp., id. op. cit. xlii, p. 268, Brontotherium Beds, 
S. Dakota. 
, Brontops validus , n. sp., id. t. c. p. 269, Brontotherium Beds, S. Dakota. 
Titanops medius , n. sp., id. ibid ., Brontotherium Beds, S. Dakota. 
Massospondylus rawest, n. sp., for a tooth from Taldi, near Nagpur, 
India (Cretaceous ?), Lydekker, Rec. Geol. Surv. Ind.xxiii (1890), p. 21, 
¥ 
4 Aniniosuurus, n. g. ( Anchisauridarum ), for Anchisaurus major, Marsh, 
and A. colurus , n. sp., Marsh, t. c. p. 267, Trias, Connecticut Valley. 
Ornithomim us, Marsh : on a specimen from the Denver Group, Colo- 
rado ; Cannon, P. Colorado Soc. iii, p. 253. 
Calumosaurus foxii, Lyd. : on two cervical vertebrae and a tibia ; 
Lydekker, Q. J. Geol. Soc. xlvii, p. 42, pi. v, figs. 1 & 2. 
^ A grosaurus macgillivrayi, n. g. & sp., for u Saurischian ” limb-bones 
from the N.E. coast of Australia ; Seeley, t. c. p. 164, figs. 
EMYDOSAURIA. 
Howes, G. B. On the Probable Existence of a Jacobson’s Organ among 
the Crocodilia ; with observations upon the Skeleton of that organ 
in the Mammalia, and upon the Basi-Maudibular Elements in the 
Vertebrata. P. Z. S. 1891, pp. 148-159, pi. xiv. 
Voeltzkow, A. Ueber Ei-Ablage und Embryonalentwickelung der 
Krokodile. SB. Ak. Berl. 1891, pp. 51-56. 
