156 BIBLIOGRAPHY OF PUBLICATIONS OF ISAAC LEA, LL. D. 



256. 



1868. Lea, Isaac. Descriptions of Twelve New Species of UnionidiB | from South 

 America. | Notes on some members of the Feldspar Family. I Description of 

 Two New Species of the Genus | Lithasia. | Descriptions of Five New Species 

 of the Genus Uuio. | On Two New Minerals from Chester Co., Pena. | De- 

 scriptions of Five New Species of Unionidas and ] One Palndina of the United 

 States. I Descriptions of Nine Species of Unionidse from Lake | Nicaragua, 

 Central America. | Descriptions of Sixteen New Si^ecies of the Genus | Unio 

 of the United States, | Notes on some Singular forms of Chinese Species of | 

 Unio. I Descrii^tions of Four New Species of Exotic Unionidtc. | Descriptions 

 of Twenty-six New Species of Melauidaj | of the United States. | Descriptions 

 of Seven New Species of Unio from | North Carolina. | Descriptions of Two 

 New Species of Unionid* from | Equador. | Descriptions of UnionidsB from 

 the Lower Creta- | ceous Formation of New Jersey. | — | by | Isaac Lea, 

 LL. D. I — I Philadelphia: | Merrihew & Son, Printers, | No. 243 Arch 

 Street, | 1868. 8°. pp. 32. 



This con.si8t8 of Numbers 238, 239, 240, 241, 246, 247, 248, 249, 250, 251, 252, 253, 254, and 255. 



257. 



1868. Lea, Isaac. New Unionidse, Melanidse, etc., chiefly of the United States. 

 <^Journ. Acad. Nat. Sci. PMla.,yi, New Series, pp. 249-302. Plates 29 to 45 in- 

 clusive. 



Eead before the Academy of Natural Sciences, .June 2, 1868. Extra copies printed for 

 the author, December, 1868. (See Journ. Acad. Nat. Sci., Phila., vi, n. e., p. 3.) This, with 

 No. 258, forms No. 259. 



The place where the Latin descriptions of these species first occurs is given after each 

 species. 



Zfnio Homsensis, Lea, pi. 29, fig. 63 249 



Proc. Acad. Nat. Sci., 1864, p. 285. 

 Unio Orphaensis, Lea, pi. 29, fig. 64 250 



Proc. Acad. Nat. Sci., 1864, p. 285. 

 Unio Kullethensis, Lea, pi. 29, fig. 65 251 



Proc. Acad. Nat. Sci., 1864, p. 285. 

 Utiio Mardineiisis, Lea, pi. 30, fig. 66 252 



Proc. Acad. Nat. Sci., 1864, p. 286. 

 Monocondylcea Mardinensis, Lea, pi. 30, fig. 67 252 



Proc. Acad. Nat. Sci., 1864, p. 286. 

 Unio Emesaensis, Lea, pi. 30, fig. 68 254 



Proc. Acad. Nat. Sci., 1864, p. 286. 

 Unio mnrginis. Lea, pi. 31, fig. 69 255 



Proc. Acad. Nat. Sci., 1865, p. 89. 

 Unio proprius, Lea, pi. 31, fig. 70 256 



Proc. Acad. Nat. Sci., 1865, p. 89. 

 Unio protensus, Lea, pi. 31, fig. 71 256 



Proc. Acad. Nat. Sci., 1865, p. 88. 

 Unio amabilis, Lea, pi. 31, fig. 72 257 



Proc. Acad. Nat. Sci., 1865, p. 89. 

 Unio OrormveUii, Lea, pi. 31, fig. 73 258 



Proc. Acad. Nat. Sci., 1865, p. 89. 

 Unio Lyonii, Lea, pi. 32, fig. 74 259 



Proc. Acad. Nat. Sci., 1865, p. 89. 

 Unio doliaris. Lea, pi. 32, fig. 75 260 



Proc. Acad. Nat. Sci., 1865, p. 88. 

 Unio punctatus. Lea, pi. 32, fig. 76 261 



Proc. Acad. Nat. Sci., 1865, p. 89. 

 Unio parens, Lea, pi. 33, fig. 77 262 



Proc. Acad. Nat. Sci., 1866, p. 34 

 Unio apprimus. Lea, pi. 33, fig. 78 263 



Proc. Acad. Nat. Sci., 1866, p. 34. 

 Unio locellus. Lea „ 264 



Proc. Acad. Nat. Sci., 1866, p. 34. 



