10 Rept. 
REPT1L1A AND BATRACHIa. 
Hoplurus sebce , D. & B., fig. 1, and cyclurus , Merr., fig. 2, figured by 
Peters, Reise n. Mossambique, iii. pi. vi. 
Chalarodon madagascariensis, Ptrs., described and figured ; id. 1. c. 
p. 34, pi. vi. fig. 3. 
Phymalolepis ( Uta ) irregularis , sp. n., Fischer, Abh. Ver. Brem. vii. 
p. 232, pi. xvii. figs. 1-4, Mexico. 
Uta eleguns, sp. n., Yarrow, P. U. S. v. Nat. Mus. v. p. 442, La Paz, 
California. 
Crotaphytus copii , sp. n., id. 1. c. p. 441, La Paz, California. 
S celoporus rujiclorsum, sp. n., id. 1. c. p. 442, California. 
Holbroolcia , Bd. Cope, Bull. U. S. Nat. Mus. 1880, No. 17, pp. 15 & 10, 
gives a synopsis of the four Texan species of this genus, viz., 11. propin- 
qua , Gir., maculata , Gir. (of which II. approximans , Bd.,is but a variety), 
texana, Trosch., and lacerata , sp. n., p. 10. 
Tropidocephalus, g, n. (?) for T. azureus , sp. n. (P), F. Miiller, Verb. 
Ges. Basel, vii. p. 161, pi., Uruguay. [No doubt identical with Ptygo- 
derus pectinatus (D. & B.) — Rec.] 
Phrynosoma douglassi pygmcea, subsp. n., Yarrow, l. c. p. 443, Oregon. 
MoSASAURl DAS. 
L. Dollo has notes on the remains of these Lizards in the Brussels 
Museum. He describes and figures the anterior part of the skull (pi. iv.), 
the pterygoids (pi. v. figs. 1 & 2), and the sclerotic ring ([>1. v. figs. 3 & 4), 
of Mosasaurus camperi y Mey., and establishes the two following new 
genera. A catalogue of the bones of Mosasauridtv in the Brussels Museum 
is appended ; Bull. Mus. Belg. i. pp. 55-80, pis. iv.-vi. 
Pterycollasaurus, g. n. (foss.), distinguished from Mosasaurus by having 
the pterygoids coalesced along the median line, for Mosasaurus inaxi- 
miliani, Goldf. ; id. 1. c. p. 61. 
Plioplatecarpu8, g. n. (foss.), characterized by the presence of a sacrum ; 
id. 1. c. p. 62. P. marslii , sp. n., id. 1. c. p. 64, pi. vi. (pectoral arch, 
fore-limb, tooth), Eben, near Maestricht (Lower chalk). 
Dacosaurus. A tooth from the greensand of Grandpre, France, 
described and figured by Sauvage, Mem. Soc. Geol. (3) ii. art. iv. p. 21, 
pi. xxx. fig. 11. 
Varan j das. 
Monitor saurus (Laur.). A young specimen figured by Peters, Reise 
n. Mossamb. iii. pi. iv. fig. 2. 
Monitor albigularis (Daud.). Head figured ; id. 1. c. fig. 3. 
Hydro saurus varius (Shaw), described and figured by McCoy, Prodr. 
Zool. Viet., Dec. v. p. 7, pi. xli. [1880]. 
Helodeematidac. 
J. G. Fischer publishes notes on the anatomy of Ileloderma horridum , 
Wiegm., describing the poisonous glands, which are very large, and 
