256 Recent Literature. { March, 
Comparing the number of genera and species for half a dozen 
orders, the following interesting results are obtained: 
‘GENERA. SPECIES. 
Coulter.| Gray. | Coulter.| Gray. 
SPOR ONE So iis SSeS i Neco ee | 20 35 143 98 
Rosaceæ 26 8 65 72 
Composite 83 85 357 288 
eae SEA LES a ss 10 8 19 67 
Cyperaceze 8 15 108 247 
Graminez.. 48 66 129 168 
SO li Ie ae 
As to the number of species common to the two regions, we 
have space for but a few comparisons. Taking a few of the 
orders as they occur at the beginning of the book, we obtain the 
following results, confining our comparisons to native species only, 
as in the previous cases: 
NUMBER OF SPECIES. 
va a 
in Coulter. | In Gray.  |Common to both. 
St eae 
RONUNCHINGEE Fc avicans Ccdswds 24 
Berberidaceze S g o 
Nymphæaceæ ..... a | 2 6 : 
‘Papavera 2 2 a 
Fumariaceæ | 5 7 I 
Cruciferze | 63 46 17 
Capparidaceæ | 7 I I 
Violaceæ 9 17 5 
Polygalaceze | 7 14 I 
No better argument as to the need of this book can be made’ 
than that derived from this comparison, which indicates that not 
more than about one-third of the Rocky Mountain species are 
described in Gray’s Manual.—Charles E. Bessey. 
THE CATALOGUE oF LIZARDS IN THE BRITISH MuseuM, new 
edition, Vols. 1 and 11.—This important work, by Dr. G. A. Bou- 
lenger, fills a desideratum in zodlogy which is of long standing. 
Previous to the publication of these volumes Dr. Boulenger had 
given us in the Ann. and Mag. Nat. Hist., 1884, p. 117, a SYNOP- ' 
sis of the families of existing Lacertilia, as understood by him. 
The classifications of Duméril and Bibron and of Gray, still gen- 
erally in use, are regarded as unnatural, and the osteology and 
structure of the tongue as well as the presence or absence and 
structure of the dermal ossifications are put forward as characters 
of primary importance. In this respect Cope is largely but not 
entirely followed. Twenty families of Lacertilia vera are recog- 
nized, separated into three series, the first (Gecconide, Euble- 
pharidz) with smooth tongue and the clavicle dilated and loop- 
shaped proximally; the second without the latter character, while 
ore oS NI 
cease re I TE 
