90 LIST OF CONTRIBUTORS. 



Lea, Isaac. Continued. 



New Unionidse of the United States. J IV, 51, 191 ; V, 53 



— — Descriptions of exotic Unionidse. J IV, 235 



New Unionidse of the United States and northern Mexico. 



J IV, 327 



New Unionidse of the United States and Arctic America. 



J V, 187 



— New Melanidse of the United States. J V, 217 



— New exotic Unionidse. J V, 377 

 Descriptions of the soft parts of one hundred and forty-three 



species and some embryonic forms of Unionidse of the United 



States. J V, 401 

 — New Unionidse, Melanidse, etc., chieny of the United States. 



J VI, 5 

 — ■ New Unionidae, Melanidge, etc., chieny of the United States. 



J VI, 113, 249, 303 



— Description of fifty-two species of Unionidse. J VIII, 5 



— Supplement to paper on Unionidae. J VIII, 55 



LeConte, John. An enumeration of the vines of North America. 

 P '53, 269 



Description of a new species of Pacane nut. P '53, 402 



Description of three new species of American Arvieolse, with 



remarks on some other American rodents. P '53, 404 



Observations on the so-called Crotalus durissus and C. 



adamanteus of modern authors. P '53, 415 



— Notice of American animals, formerly known, but now for- 

 gotten or lost. P '54, 8 



— On Magnolia pyramidata. P '54, 174 



— Descriptions of four new species of Kinosternum. P '54, 180 



— Arrangement of the tortoises. P '54, 186 



— Catalogue of American Testudinata. P '54, 189 



— Observations on Vespertilio leporinus of Linnaeus. P '54, 190 



— Descriptions of new species of Astacus from Georgia. P 



'55, 400 



— On a new species of Gelasimus. P '55, 402 



— Remarks on two species of American Cimex. P '55, 404 



- — ■ Descriptive catalogue of tbe Ranina of the United States. 

 55, 423 



— Observations on the North American species of bats. 



'55, 431 

 — Description of two new species of Hesperomys. P '55, 442 



