216 AMERICAN JOURNAL 



In tlie portion of the work relating to Strepomatidse, over 

 8500 references to publications are made, which will indicate 

 the amount of labor required in this, the easiest branch of the 

 subject; for the principal labor consisted in the critical ex- 

 amination and comparison of specimens, very few decisions 

 being based on the published descriptions. The following is 

 a portion of the Preface to the 1st Part of the Synonymy 

 (published in 1863): — 



"The following synonymy of the very numerous species of 

 North American shells, heretofore considered Melanians, is 

 offered as the result of a year's study of the extensive collec- 

 tions of the Smithsonian Institution and of the Academy of 

 Natural Sciences, as well as those of Messrs. Lea, Haldeman, 

 Anthony and Gould, together with my own and several smaller 

 collections." 



It is not necessary to advert here to our views of the syno- 

 nymy of the family or of its genera, as we have already fully 

 treated of this subject, in the 2d No. of the Journal of Con- 

 chology. 



I 



II.— FOEEIGN. 



BRITISH. 



Conchologica Iconica: by lovell reeve. 

 Parts 244, 245, (1865,) contain:— 



Marginella, Plates 14 — 27, and species 58 — 159, completing 

 the genus. 



The new species herein described are : — 



M. DeBurghise, Adams, MS., Swan River. 

 " ovum, Reeve, (?) 



" Sondurasensis, Reeve, Honduras. 



