. CHELONJA — RHYNCHOCEPHALIA. 
Itept. 21 
figured by Boulenger, Faun. Ind., Kept. fig. 6. T. galapagoensis, n. sp., 
for T. elephantopus, Jackson, nee Harl., and T. guentheri, n. sp., for T. 
elephantopus , Gthr., nec Harl. ; Baur, t. c. p. 1044. T. leberonensis, n. sp. 
(foss.), Deperet, C.R. cx, p. 915, Upper Miocene, Mt. Leberon, France. 
T. brontops, n. sp. (foss.), Marsh, Am. Journ. (3) xl, p. 179, pi. viii, Lower 
Miocene of Dakota. 
G. Baur, Am. Nat. xxiv, p. 486, divides the recent Chcloniidce into 
four genera, viz., Chelonia , Brongn., Caretta , Ritg., Thalassochelys, Fitz. , 
and LcphloclicbjSy Fitz. 
Chelone imbricata , L., figured by Boulenger, Faun. Ind., Rept. fig. 16. 
iothyosauria. 
Ophthalmosaurus pleydelU , n. sp., Lydekker, Cat. iv, p. 268, figs. 
Kimeridgian, Dorsetshire. 
Gavialis mutinensis , n. sp. (foss.), Pantanelli, Boll. Soc. Geol. Ital. viii, 
p. 43, = Ichthyosaurus campylodon y Carter ; Capellini, Mem. 1st. 
Bologna (4) x, p. 1, pis. i & ii, and Atti Acc. Pontif. Lincei, Rend, vi, 
p. 79. 
PLESIOSAURIA. 
Williston, S. W. Structure of the Plesiosaurian Skull. Science, xv, 
pp. 262 & 290. 
Pliosaurus ferox , Sauv. : on remains from the Oxford Clay of Peter- 
borough ; Lydekker, Q. J. Geol. Soc. xlvi, p. 49, pi. v. 
Cimoliosaurus portlandicus , Ow. : remarks by id. t. c. p. 47, fig. 
Capitosaurus silesiacus , n. sp., Kuniscii, Z. geol. Ges. xlii, p. 377, pi. xx, 
Muschelkalk of Silesia. 
E. Koken has notes on the skull, brain-case, and auditory organ of 
Nothosaurus ; SB. Nat. Fr. 1890, pp. 108-111. 
Anarosaurus , n. g., allied to Nothosaurus , H. v. M. A. pumilio, n. sp., 
Dames, Z. geol. Ges. xlii, p. 74, pi. i, Muschelkalk of Remkersleben, near 
Magdeburg. 
J Ditrochosaurus, n. g., allied to Mesosaurus i Gerv., D. capensis , n. sp., 
Gurich, Z. geol. Ges. xli, p. 641, pi. xxvii, Karroo formation. 
THECODONTIA. 
Zittel, Palaeontologie, iii, p. 644, proposes a new Suborder, Pseudo - 
suchia , intermediate between Parasuchia and Eusuchia , for A ctosaurus, 
Fraas, and allies. 
RHYNCHOCEPHALIA. 
G. B. Howes, P. Z. S. 1890, p. 357, figs., remarks on the proatlas and 
vomerine teeth of Sphenodon punqtatus , Gray. 
