12 Rept. 
REPT1LIA AND BATRACHIA. 
n. sp., Boulenger, P. Z. S. 1890, p. 85, pi. viii, fig. 4, Kilifi, E. Africa. 
0. willsii , n. sp., Gunther, Ann. N. H. (G) v, p. 71, pi. vi, Madagascar. 
PYTHONOMORPHA. 
Dollo, L. Premiere Note sur les Mosasauriens de Maestricht. M6m. 
Soc. Belg. Geol. iv, pp. 151^-169, pi. viii. 
Deals with Mosasaurus giganteus, Somm. (= M. boffmanni , Mant.) and 
Plioplaty carpus marsbii, Dollo, and with the phylogeny of Mosasaurians 
generally. The author is inclined to regard the European Mosasaurians 
as descended from the American, and these from the New Zealand forms. 
Baur, G. On the Characters and Systematic Position of the large Sea- 
Lizards, Mosasauridce. Science, xv, p. 262. 
The author regards the Mosasauridce as very closely related to the 
Varanidce , of which they simply represent highly specialized aquatic 
forms. They are united with the Varanidce and Helodermatidce into a 
group, for which the old name Platynota is revived. 
OPHIDIA. 
Boulenger, Faun. Ind., Rept., abandoning the primary division of 
Snakes into poisonous and non-poisonous, arranges the Ophidia in 9 
families: — 1, Typhlopidce ; 2, Glauconiidce ; 3, Boidce ; 4, Ihjsiidce ; 5, 
Uropeltidce ; G, Xenopeltidce ; 7, Colubridce ; 8, Amblycephalidas ; 9, 
Viperidce. The Colubridce are divided into three parallel series : Aglypha , 
Opistlioglypha , and P voter oghypba. 
JagerskiOld, M. L. Notes sur le d^veloppement du Corps Pituitaire 
chez la Couleuvre. Biol. Foren. ii, pp. 92-95, pi. iv. 
Sibley, W. K. On the Incubation of Snakes* Eggs. Nature, xliii, 
pp. 68-70. 
F. Werner, Biol. Centralbl. x, pp. 233-238, remarks on variations in 
the lepidosis of Snakes of the genera Tropidonotus, Zamenis y and Vipera. 
Werner, F. Untersuchungen fiber die Zeichnung der Schlangen. 
Vienna : 1890, 8vo, 120 pp., 8 pis. 
Vidal, G. W. A List of the Venomous Snakes of North Kanara ; with 
remarks as to the imperfections of existing records of the distribu- 
tion of Snakes, and facts and statistics showing the influence of 
Echis carinata on the death-rate of the Bombay Presidency. J. 
Bomb. N. H. Soc. v, pp. 64-71. 
On the food of Europeau harmless Suakes ; F. Werner, Zool. Gart. 
xxxi, pp. 134-143. 
