TABLE OF CONTENTS. V 



Dall, William Healey. A review of some bivalve shells 

 of the group Anatiaacea from the west coast of America, page. 

 No. 2116. November 27, 1915 ^ 441-456 



New species: Thrada beringi, T. challisiana, T. diegensis, T. colpoica, 

 Cyathodonta dubiosa, C. lucasana, C. pedroana, C. galapagana, 

 C. cruziana, Kennerlyia granulata, K. convexa, K. patagonica, 

 Coelodon radians, Foveadens panamensis, Lyonsiaf retails. 



New name: Lyonsia gouldii. 



Notes on the species of the molluscan subgenus 



Nucella inhabiting the northwest coast of America and 

 adjacent regions. No. 2124. December 11, 1915 ^ 557-572 



New varieties: Thais lamellosa franciscana, T. I. hormica, T. I. nep- 

 tunea, T. I. cymica, T. I. sitkana, T. canaliculata compressa, T. 

 emarginata projecta. 



DoDDS, G. S. Descriptions of two new species of Ento- 

 mostraca from Colorado, with notes on other species. 

 No. 2096. August 13, 1915 1 97-102 



New species: Streptocephalus coloradensis, Diaptomus arapahoensis. 



Evans, Arthue, T. A collection of amphibians and rep- 

 tiles from Gogebic County, Michigan. No. 2109. July 

 26, 1915^ 351-354 



Gahan, a. B. a revision of the- North American Ichneu- 

 mon-flies of the subfamily Opiinae. No. 2095. August 

 23, 1915 1 63-95 



New genus: Allobracon. 



New species: Opius mellexis, 0. ferrugineus, 0. flaviceps, 0. vierechi, 



0. brunncitarsis, 0. crassiceps, 0. cincticornis, 0. fuscipennis, 0. 



canaliculatus, 0. mandibular is, . foersteri, 0. coloradensis, 0. rufo- 



cinctus, 0. apicalis, 0. ehrhorni, 0. commodus, 0. striativentris, 



0. gracillariae, 0. americanus. 



GiLMORE, Charles W. A new restoration of Stegosaurus. 



No. 2110. August 23, 1915 1 355-357 



-. On the fore limb of Allosaurus fragilis. No. 2120. 



November 27, 1915 ^ 501-513 



Osteology of Thescelosaurus, an orthopodous dino- 

 saur from the Lance formation of Wyoming. No. 2127. 

 December 23, 1915^ 591-616 



GoRTNER, Ross Aiken. See Banta, Arthur M 377-379 



' Date of publication. 



