410 Reviews, and Notices respecting New Books. 
Herretotocia Mexicana, seu Descriptio Amphibiorum Nove Hispa- 
nie, que itineribus Comitis de Sack, Ferdinandi Deppe et Chr, Guil. 
Schiede in Museum Zoologicum Berolinense pervenerunt. Pars I. 
Saurorum Species amplectens, adjecto Systematis Saurorum Pro- 
dromo, additisque multis in hunc Amphibiorum ordinem observatio- 
nibus, edidit Dr. Arend Friedericus Augustus Wiegmann. Accedunt 
tabule lithographice decem, novorum generum typos exhibentes. 
Berolini sumptibus C. G, Liideritz, 1834. London, W. Wood, 
Tavistock-street. 
This Work is intended to form two volumes, of which the first con- 
tains the order Sauri, and the second will contain the Ophidii, Chelonii, 
and Batrachii. The author treats of the Sauri, on which he has 
founded the Prodromus of his system, at large, giving careful charac- 
teristic definitions of all known genera, appending the Crocodiles 
(Loricati, Merr.) and the Amphisbenoides, as he has done in a former 
work (Handbuch der Zoologie, Berlin 1832), as aberrant suborders. 
The anatomical characters of the typical subdivision (Squamati) and 
of both the aberrant (Loricati and Annulati) are investigated at length. 
The typical subdivision (Squamati) is divided into the series Lepto- 
glossi, Rhiptoglossi,and Pachyglossi,which are developed in a Synopsis. 
The central group is formed by the Chameleontes alone ; the Leptoglosst 
and Pachyglossi form the lateral divisions, and are subdivided into two 
sections. 
LEPTOGLOSSI. RuIPTOGLOSSI. PacnyYGLosslI. 
Sect. I. (aberrans.) Sect.II. (typica.) Sect. I. Sect.I. (typica.) Sect. II. (aberrans. ) 
(a.) Brevilingues. (b.) Fissilingues. Vermilingues. (b.) Crassilingues. (a.) Latilingues. 
(Agame.) 
Fam. Fam, Fam. ‘am, am. 
1. Lacertz. 1. Monitores. Chamzleontes. 1. Dendrobate. Ascalabote. 
2. Stychopleuri. 2. Trachydermi. 2, Humivage. 
3. Chamzsauri, 8. Ameive. 
4. Scinci. 
5. Gymnophthalmi. 
The families of the aberrant sections inhabit both hemispheres, 
those belonging to the typical only one, or the tribes belonging to 
the Old and New World show at least a great difference in their den- 
tition. The families are well characterized according to the pecu- 
liarities of their outward form and their osteological peculiarities. 
The author has added several observations to the genera, and has 
described a great number of new genera and species from all parts of 
the world. He refers, in describing the four last families of the Brevilin- 
gues, to a Synopsis of the genera, In the description of the Sauri of 
Mexico, which begins at p. 22, all the living genera are described 
with great accuracy, and he has often given a complete view of the 
anatomy of the typical species, also a Conspectus of all the species 
of the genus, with short diagnoses and descriptions of the Mexican 
species. The author has also endeavoured to show their relation to 
those from other parts of the world. The coloured plates surpass 
those of Wagler in accuracy, and give not only a true copy of the 
scaly covering of the animal, but so represent their habit and phy- 
siognomy, that they appear to be drawn after living specimens. 
