IV TABLE OF CONTENTS. 



Page. 



Berry, Edward W. A revision of several genera of gym- 

 nospermous Plants from the Potomac group in Maryland 

 and Virginia.— No. 1821. May 8, 1911 l _ 289-318 



New combination: Abietites longifolius. 



Berry, S. Stillman. Preliminary notices of some new 



Pacific Cephalopods — No. 1838. * May 31, 1911 1 589-592 



New species: Cirroteuthis macrope, Eledonella heathi, Polypus cali- 

 fornicus, P. leioderma, Rossia pacifica, Loligo opalescens, Galiteuthis 

 phyllura. 



Busck, August. Descriptions of tineoid Moths (Micro- 

 lepidoptera) from South America. — No. 1815. April 13, 

 1911 ! 205-230 



New genera: Filinota, Hasta, Gonada, Ordupia, Plumana. 



New species: Pleurota literatella, Psoricoptcra apicepuncta, Filinota 

 hermosella, F. peruviella, Peleopoda maroniella, P. notandella, P. 

 irenella, Hasta argentidorsella, Gonada falculinella, Cryptolechia 

 roseomarginella, Stenoma major, S. io, S. aa'onitis, S. mendoron, 

 S. nestes, S. trastices, S. apicalis, S. lactis, S . fasciatum, S. venatum, 

 JS. gunni, S. comma, 8. speratum, S. salome, S. inscitum, S. thoristes, 

 S. maroni, S. vanis, S^addon, S. phcebe, S. similis, S. demas, S. 

 hamon, Gonioterma rosa^G. anna, G. stella, G. inga, G. emma, G. 

 vita, Olethreutes gerda, Tortrix auriferana, T. parana, Ordupia 

 friserella, Tinea boliviana, Plumana piperatella. 



Clark, Austin Hob art. The recent Crinoids of the coasts of 



Africa.— No. 1808. March 15, 191 1 > , 1-51 



New species: Necomatella, Commissia ignota, Amphimetra africana, 



Craspedometra ater, C. madagascarensis, Heterometra joubini, H. 



gravieri, Colobometra chadwichi, Decametra mobiusi, D. modica, D. 



alaudse, Tropiometra encrinus, Cosmiometra gardineri, Iridometra 



mauritiana, I. segyptica, Peromeira afra. 

 New variety: Oligometra serripinna, var. oceidentalis. 



. The systematic position of the Crinoid genus 



Marsupites.— No. 1845. June 24, 1911 * 649-654 



©ockerell, T. D. A. Bees in the collection of the United 

 States National Museum. 2. — No. 1818. April 11, 

 1911 * 241-264 



New species: Halictus nikko'ensis, Andrena prxcociformis, A. rup- 

 shuensis, Coelioxys siamensis, Steiis louisse, Proanthidium Icash- 

 garense, Megachile pamirensis, M. ladacensis, M. rupshucnsis, 

 Dasypoda japonica, Tetralonia mitsuhurii, Anthophora eversa, A. 

 hilgendorfi, A. venerabilis, A. robbi, A. retusiformis, A. melan- 

 ognaiha. 



New subgenus: Coelioxys (Liothyrpis) apicata. 



New subspecies: Megachile sayi paludicola, Anthophora zonata 

 buruensis. 



New variety: Anthidium philorum, var. abbotti. 



1 Date of publication. 



