stimpsox’s prodromes, etc. 
105 
suggest that it should he carefully preserved and bound up as part of the 
“ Review” at the close of this year. 
While our own publishers (Messrs. Williams and Horgate) are ever 
foremost in introducing to the notice of British naturalists the works of 
our Continental brethren, Messrs. Triibner and Co. are not the less active 
in keeping us acquainted with the productions of our Transatlantic friends. 
Prodromes Descriptions Aximalium Evertebratorum, ix Expe¬ 
dition: AD OCEAXTTM PaCIEICTJM SePTEXTRIOXALEM A RePTJBLICA 
Eederata missa. Cadwaladaro Ringgold et Johanne Rogers Ducibus; 
observavit et descripsit W. Stimpson. Pars II. 
With the first Part of Mr. Stimpson’s “ Prodromus” our readers are 
already familiar (vide “ Hatural History Review,” vol. x. p. 79). The 
present Part, containing eight pages, is entirely devoted to the Turbel- 
la/ria nemertina , of which the author describes ten new genera, including 
fourteen species. In accordance with the views of other naturalists, the 
species included under the old genus Meckelia are referred by the author 
to four genera, namely, Lineus, Cerebratulus, Serpentaria, and Meckelia 
proper. We trust ere long to have the pleasure of noticing the third 
Part of our author’s useful descriptions. 
Ox the Hew Red Saxdstoxe Eormatiox of Pexxsylvaxia. 
Descriptiox of a Hew Stjb-Gtexijs of Haiades. 
Descriptiox of a Hew Species of Triqtteta. 
Descriptiox of Hew Eresh-water Shells from Califorxia. 
Descriptiox of Twexty-five Hew Species of Exotic Dxioxes. 
By Isaac Lea, LL. D., &c. &c., Philadelphia. 
The above list includes the names of a series of papers read by the author 
before the Academy of Hatural Sciences of Philadelphia, and extracted 
from its Proceedings. An abstract of the first paper, with a full Latin 
description of each of the new forms mentioned in the others, is conti¬ 
nued in the little eight-page tract before us. In the Pennsylvanian 
Hew Red Sandstone Mr. Lea has found the tooth of a Saurian reptile, 
which he proposes to name Centemodon sulcatus. In the same formation 
he has detected two new species of Posidoniee, footmarks of a supposed 
species of Chelichnus, impressions of coniferous plants, of which one 
of the cones was nearly six inches in length, and a Ganoid scale, which 
bears some resemblance to those of the Pygopteris mandibularis of 
Agassiz. The descriptions of the new species in the remaining papers 
speak for themselves, especially those of the twenty-five new Exotic 
Dnios, the account of which will be of most interest to those who are 
familiar with the elaborate monograph of the distinguished author. 
vol. v.-— rev. p 
