180 AMERICAN JOURNAL 



British Conchology, or an Account of tlie Mollusca -which no^w 

 inhabit the British Isles and the surrounding seas. By J. Gwyn 

 Jeffheys. Vol. iv. Marine Shells, in continuation of the Gasteropoda 

 (from Rissoa) as far as the Bulla family. 8 vo. 490 pp. 9 pi. London, 



1867. 



This latest and best of the British Conchological manuals is 

 drawing to its conclusion ; another volume (5th) will complete it 

 and furnish the colored illustrations of all the species described. 

 Like Weinkauff's Mollusca of the Mediterranean Sea, and 

 Brot's Melanidce, Mr. Jeffreys' work is a monument of the learn- 

 ing, accuracy, and exhaustive research distinguishing the best of 

 the present generation of conchologists. The work is, of course, 

 indispensable to all public and private libraries. 



Aporrhais Macandrece, Jeffreys, is proposed instead of A. 

 pes-carbonis, F. & H., the species being different from the fossil 

 species described under the latter name by Brongniart. 

 Cerithiopsis Barleei, n. sp. 



Biiccmopsis, n. gen. Type Biiccinum Dalei, J. Sowerby. 

 Nassa nitida, Jeffreys, n. sp. 

 Columbella Haliceeti, n. sp. 

 UtriculuH ventrosus is proposed in place of U. globosa, the 

 latter name being preoccupied by Loven. 



PMline angulata, Jeffreys, n. sp. 



" nitida, " " 



British Conchology, or an Account of the Mollusca which now 

 inhabit the British Isles and the surrounding seas. Vol. v. 

 Marine Shells, Supplement and Plates. By John Gwyn Jeffreys. 12mo. 

 3G0 pp. and 103 lithographic plates. London, 1869. 



It is impossible to do justice to the merits of this great work 

 within the time and limits at my disposal. Never before has 

 the molluscous fauna of any country been treated so learnedly 

 and so thoroughly, and yet one knows not which most to admire, 

 the vast knowledge displayed in its pages or the simple, unob- 

 trusive manner in which it is conveyed in words suitable to the 

 thorough comprehension of all classes of readers. I cannot 

 even take the time to advert to many changes of nomenclature 

 of genera and species here adopted. I may mention, however, 

 that Mr. Jeffreys adopts the Auricula bidentata of Montagu 

 into the genus Melampus, and thus preoccupies Say's name for 

 the American species, which, he says, must receive the name 

 given to it by Deshayes in 1830 — M. eorneus; but the fact is, 

 . that the two species do not belong to the same genius. 



Odostomia Warreni, Thompson, previously quoted as a variety 

 of 0. obliqua, is now described as a new species. 



