ee 
a 
Bibliography. 379 
parts, and the descriptive text is full, and accompanied with a copious 
synonymy and references to other authors. We regret that our pres- 
ent limits do not permit giving a full conspectus of the genera and 
species of this group; but we must content ourselves with giving only 
the genera and the number of the species under each. 
I. Rotula, (Klein,) 2 species. I]. Runa, (Agass.,) 2 species. III. 
Millita, (Klein,) 5 species. IV. Encope, (Agass.,) 11 species. V. Lo- 
bophora, (Agass.,) 4 species. WI. Amphiope, (Agass.,) 2 species. 
“VIL Scutella, (Lam.,) 12 species. VIII. Echinarachinus, 4 species. 
IX. Arachnoides, (Klein,) 1 species. X. Scutelleria, (Agass.,) 5 spe- 
cies. XI. Laganum, (Klein,) 14 species. XII. Echinocyamus, (Agass.,) 
11 species. XIII. Moulinia, (Agass.,) 1 species. 
Like all the works of this distinguished author, the present livraison 
is marked by its great fidelity and the beauty of its mechanical execu- 
tion ; and our constant wonder is, how Prof. Agassiz can carry on at 
once so many great works as we know he has in hand, and yet devote 
to each a measure of labor which few other naturalists can command 
fer a single object. 
e beg again to call the attention of American naturalists to the re- 
quest of M. Agassiz, that all who are so disposed, will send him spe- 
cimens of the Echinodermata of America, for whi¢h due acknowledg- 
ment may be expected. 
10. Boston Journal of Natural History. Published by direction of 
the Boston Society of Natural History. Boston: Little & Brown, 1842. 
Vol. IV, PartI. pp. 136, with 7 plates—This part contains the follow- 
ing papers : 
~ Art. I. Dissection of two adult dromedaries, a male and a female, 
by J. B.S. Jackson, M.D. Il. Descriptions of the Fishes of the Ohio 
river and its tributaries, by J. P. Kirtland, M. D. III. Observations on 
the genus Scalops, (Shrew moles,) with descriptions of the species found 
in North America, by J. Bachman, D. D., Charleston, S.C. IV. On 
the occurrence of the Phosphate of Uranium in the Tourmaline locality 
at Chesterfield, by J. E. Teschemacher. V. Descriptions of twenty 
four species of the Shells of New England, by J. W. Mighels, M. D., 
of Portland, Me., and Prof. C. B. Adams, of Middlebury College, Vt. 
VI. Deseriptions and figures of the Araneides of the United States, by 
Nicholas Marcellus Hentz. VII. Descriptions of two new species of 
Fishes, by D. Humphreys Storer, M.D. VIII. On a new species of 
Rafflesia from Manilla, by J. E. Teschemacher. IX. Remarks upon 
Coral Formations in the Pacific, with suggestions as to the causes of 
their absence in the same parallels of latitude on the coast of South 
America, by Joseph P. Couthouy. X. Niagara Falls—their physical 
