OP CONCHOLOGY. 47 



REVIEWS AND NOTICES 



OF 



NEW CONCHOLOGICAL WORKS 



BY GEO. W. TRY0N, JR. 



I.— AMERICAN. 



American Journal of Science and Arts. January, 1868. 



Note on the Shell-structure and Family affinities of the genus 

 Aviculopecten. By F. B. Meek. 



The American Naturalist. Vol. 1, No. 11. January, 1868. 



The Land Snails of New England, By Edw. S. Morse. 

 (Continued.) 



IL— FOREIGN. 



BRITISH. 

 Concbologia Iconica. Parts 266, 267. Sept. 1867. 

 Unio, plates 57 — 60. 



U. nocturnis, Lea, is made a synonym of U. funebralis, Lea, 

 both from Uruguay River. 



U. suhtrigonus, Sowerby, Siam. No mention is made of the 

 teeth in this species, but externally it reminds one of Monocon- 

 dylcea. 



U. cariosus, Say. Mr. Sowerby makes U. ochraceus a syno- 

 nym. The specimen figured is an ochraceus. 



U. Dolabrceformis, Lea. U. excavatus, Lea, is written a 

 synonym with doubt. It is, however, very different. 



U. eonfragosus, Say, = Margaritana. 



U. rugosus, Barnes, = Margaritana. 

 Tellina, plates 35 to 42. 



