58 THE NAUTILUS. 



viii INDEX TO CONCHOLOGIST'S EXCHANGE. 



Unio Buckley! ; U. Buddiantis ; U. Blaudingianus ; U. 



coruscus, . II, 95, 105 



Unio cacao Lea ; Unio Cunningham! B. H. Wright (n. 



sp.) ; U. floridensis Lea ; U. Jayanus Lea, . II, 105 



Uuio grauulatus Lea in Fla., ..... II, 111 

 Unio Jewettii ; U. Kleiniauus ; U. lepidus ; U. minor ; 



U. inodioliformis II, 112 



Uuio Liebii in Lake Erie I, 26 



Unio papyracea Gould in Lake Ashby, Fla., . . I, 81 



Unio monroensis Lea ; U. fuscatus Lea ; U. paludico- 



lus Gld. I, 27 



Valvata tricarinata Say and V. hicariuata Lea, . . II, SO 

 Valvata mergella AVesterlund, only a striate varietj' of 



V. sincera Say, II, 113 



Venus mercenaria Linn II, 102 



Yivipara intertexta ; V. subpurpurea ; V. contectoides, II, 65 

 Yoluta Gonldiana, found in 1 ~>0 to 200 fathoms off Fowey 



Rock Light, Fla., . . II, 9, 10 



Zirphrea crispata Linn., II, 34 



INDEX TO CONTRIBUTORS AND TITLES. 



Titles in brackets are the general subjects of notes placed under 

 " Correspondence." 



Ancey, C. F. Diagnoses of a few subgenera in Helici- 



dse, . 1,20 



Descriptions of new genera or subgenera of Hel- 



icidre, I, 53, 64, 75, II, 22, 38 



[Notes on new subgenera, and some American 



Helices] . . . . I, 54 



A Catalogue of the Bulimini found in Central 



Asia, II, 5 



On the generic name of a remarkable bivalve shell 



found in the Congo II, 22 



Description of North American shells, . . II, 53, 79 



Baker, F. C. [A collecting trip to Onset Bay, Mass.], II, 119 

 IVaiiclianip, Rev. Wm. M. Erosion of fresh water 



shells, . 1,49 



Notes on American Shells, .... 11,114 



