LIST OF CONTRIBUTORS, 



With reference to the several articles contribtited by each. 

 For Verbal Communications see General Index. 



Bland, Thos. and W. G. Binney. On the Lingual Dentition and Jaw 

 of Certain Terrestrial Pulmonata from the United States, with 



remarks on their Systematic Value 240 



Cope, E. D. On two new species of Saurodontidae 337 



On some new Batrachia and Fishes from the Coal Measures of Linton, 



Ohio 340 



Cresson, E. T. Descriptions of Mexican Ichneumonidge 104, 374 



Crotch, G. R. Materials for the Study of the Phytophaga of the United 



States 19 



Notes on the Species of Buprestidse found in the United States 84 



Dall, W. H. Catalogue of the Recent Species of the Class Brachio- 



poda 177 



Garrett, A. Descriptions of new species of Marine Shells inhabiting 



the South Sea Islands 209 



Description of a new species of Goniodoris 232 



Descriptions of new species of Land Shells inhabiting the South Sea 



Islands 233 



Gentry, T. G. Observations on change in structure of a Larva of 



Dryocampa imperialis 274 



Influence of Nutrition on Sex among the Lepidoptera 281 



Observations on Nests of Sayornis Fuscus 292 



Observations on the Habits of the Neuters of Formica Sanguinea. . . 298 



Gill, T. On the Affinities of the Sirenians 262 



On a New American Species of Pleuronectoid (Glyptocephalus Aca- 



dianus) ^ 360 



Hoopes, B. A. Description of a new variety of Butco 238 



Lea, I. Description of Seven New Species of Unionidse of the United 



States 422 



Description of Three New Species of Uniones of the United States. . 424 



Le Conte, J. The Pterostichi of the United States 302 



Synonymical Remarks upon North American Coleoptera 321 



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