306 REVIEWS. 
cus levicaudus, and a new genus and species of snakes, Enulius 
murinus. In the “ Catalogue of Reptilia and Batrachia obtained 
by C. J. Maynard in Florida,” Prof. Cope describes a new lizard, 
Plistodon onocrepis Cope, and a new salamander, Manculus remi- 
Jer. Dr. Packard in a ‘‘ List of Insects collected at Pebas, Equa- 
dor, and presented by Prof. James Orton” describes as new 
Attacus Amazonia. Mr. Smith in the “ List of the Crustacea col- 
lected by J. A. McNiel in Central America,” describes a number 
of new crabs: Leptopodia debilis, Ozius integer, Arenceus bidens, 
Gebia spinissima, Atya rivalis, A. tenella, Evatya (n. g.) crassa, 
Leander gracilis and Paleemon tenellus. 
CoraLts AND Potyps or THE West Coast or America. *—Of 
this elaborate work, with its careful and detailed descriptions and 
most excellent illustrations, we can only give the author’s general 
results, both from want of space, as well as a knowledge of the 
subject. Two years ago Prof. Verrill called attention to the re- 
markable contrast between the assemblages of polyps found on 
the Atlantic and Pacific coasts of Central America, and the bear- 
ing of these facts upon the supposed former connection between 
the two oceans, across the Isthmus of Panama. He is now able 
to state that ‘‘the additional forms now presented make these con- 
trasts still greater and more remarkable, and add greater force to 
the evidence then brought forward to show that no deep or exten- 
sive water connection, sufficient to modify the ocean currents, can 
have taken place since the existence of the species now living 
upon each coast.” 
“ The polyps of Panama prove to be remarkably rich in sea fans 
aA no et than forty-three species having been already 
se the genus Muricea appears here to attain to 
ie adit paretei since fifteen species, besides several 
peculiar varieties, perhaps distinct, are in our collection from Pan- 
ama Bay, and others from Acapulco and Peru, while from the 
West Indies there are but four well-ascertained species.” ‘‘ The 
occurrence of two peculiar, gigantic species of Pavonia, a genus 
* Notes on Radiata in the Museum of Yale College. By A. E. Verrill. No. 6.— Re- 
view of the Corals a fakin of the West Coast of America (with 6 plates). No. 7.— 
hic n of the Polyps and of the West Coast of America. 
No. 8. — Additional Okaidi on Echinoderms, chiefly from the Pacific Coast of 
ica. No. 9.—The Echinoderm-fauna of the Gulf of California and Cape St. Lu- 
. (From the Transactions of the Connecticut Academy of Arts and Sciences. Vol. 
1 D March 1871. 8vo, pp. 219. 
