122 ZOOLOGICAL LITLllATUllE. 
them according to their range into the neighbouring provinces, and points 
out that, herpetologically, tlie Sonoran and Lower Californian provinces are 
nearly as distinct from each other as the Sonoran is from the Central, and 
that these and the Pacific province are more nearly related to each other 
than to the Eastern province. 
Vancouver Island. Mr, Lord, in the work mentioned above, p. 6 (vol. ii. 
pp. 301-309), mentions 19 Reptiles observed by him in Vancouver Island 
and British Columbia. They are named after the publications of Baird and 
Girard, and require revision. 
Central America. Prof. Cope has continued his examinations of various 
collections received from Tropical America. Proc. Ac. Nat. Sc. Philad. 1866, 
pp. 123-132, 317-323, He has made a most valuable addition to our know- 
ledge of the Herpetology of that zoologically almost unknown province of 
Yucatan) enumerating 38 species. Another collection, made in Belize and 
Honduras, contained only 11 species. He describes also a considemble 
number of species from Mexico and Vera Cruz which he regards as new. 
CHELONIA. 
Cyclemys dentata is described and figured by Giebel, Zeitsclir. ges. Natur- 
■mss. 1866, p. 16, tab. 3. 
Hydromedusa hankce, sp, n., Giebel, 1. c. p. 19, tab. 4, from Banka. 
Stcrnothcerus. Notes on St. derbiamts and yahoncnsis by Dr. Bocage, 1. c. 
p. 67, 
SAUEIA. 
. Dr. Alex. Strauch has published a most elaborate memoir 
on recent jCrocodiles generally, and on the species in the St. 
Petersburg Museum especially (Mem. Acad. Sc. St. Pet. x. no. 13, 
1866, pp. 120). It is divided into three parts. In the first the 
author gives a systematic synopsis of all the species known, 
adding to each a detailed account of the synonymy and a dia- 
gnosis, and stating as exactly as possible the localities whence 
they have been obtained. He admits only the three genera 
CrocodiluSj Alligator, and Gavialis, stating that although in the 
first two, and in the second three, groups of species may be 
recognized, they can scarcely be regarded as subgenera. Croc, 
planirostris of Graves is considered distinct from Or. rhomhifer; 
Cr. frontatus (Murray, 1862) is identical with Osteolcemus te~ 
traspis (Cope, 1860). Adanson^s Crocodile noir^^ is not Cr. 
frontatus, but Cr. cataphractus (Cuv.), with which Mecistops 
bathyrhynchus (Cope) is identical. In the second part detailed 
descriptions are given of the species known to the author from 
autopsy, viz. Alligator mississippensis, niger, latirostris, sclerops, 
punciulatus, trigonatus, Crocodilus frontatus (plate), rhombifer, 
vulgaris, palustris, biporcatus, acutus, cataphractus. Pinallyi 
the third part contains general remarks On the geographical 
distribution of these Reptiles (pp. 110-116) : North America 
has 1, South America 9, Africa 3, and Asia (with Australia) 6 
species. This part is illustrated by a map. 
