VI TABLE OF CONTENTS. 



Boone, Pearl L. Description of ten new isopods. No. 



2253. October 16, 1918 ^ 591- 604 



New family: Pterisopodidae. 



New genus: Pterisopodus. 



New species: Gnathia triospathiona, Cirolanahermitensis, Excorallana 

 berbicensis, Braga occidentalis, Pterisopodus bnrtschi, Sphaeroma 

 exosphaeroma, Exosphaeroma barrerae, Astacilla californica, Philos- 

 cia minutissima, Leptotrichus vedadoensis. 



Clark, Austin H. A new genus and species of multibra- 

 chiate ophiuran of the family Gorgonocephalidae from 

 the Caribbean Sea. No. 2257. November 1, 1918 ^ 637-640 



New genus: Astrocynodus . 



New species: Astrocynodus herrerai. 



CocKERELL, T. D. A. Ncw spccics of North American 

 fossil beetles, cockroaches, and tsetse flies. No. 2237. 

 July 5, 1918 ' 301-311 



New genera: Cobaloblatta, P tilomylacris . 



New speciea: Atimoblatta reducta. Phoberoblntfn reticulata, Coba- 

 loblatta simulans, Brachymylacris bassleri, Ptilomylacris medialis, 

 Phthinomylacris (?) pauper, Atimoblatta (?) Jlexuosa, Carabites{?) 

 arapahoensis, Balaninus (?) becklyi, Calandrites (?) ursoi'um. 



Dall, William Healey. Notes on Chrysodomus and 

 other mollusks from the North Pacific Ocean. No. 2234. 

 April 5, 1918 1 207-234 



New species: Turris (Crassispira) rugitecta, Plidfusus (Retifusus) 

 scissuratus, P. (Aulaco/usus) rhyssoides, P. (Latifusus) ualcasanus, * 



Colus (Latisipho) lepidus, C. (Limatofusus) tahivitanus, Searlesia 

 constricia, Ancistrolepis latus, Siphonalia lubrica, Boreotrophon 

 xestra, B. echinus, Anachis bartschii, Lepeta (Cryptoctenidia) lima, 

 Venericardia (Cyclocardia) morsei, Venericardia hirasei. 



Notes on the nomenclature of the mollusks of the 



family Turritidae. No. 2238. April 5, 1918 ^ 313-333 



DoDDS, Gideon S. Altitudinal distribution of Entomos 



straca in Colorado. No. 2226. October 27, 1917 ' 59-87 



Dyar, Harrison G. Descriptions of new Lepidoptera 



from Mexico. No. 2239. April 5, 1918 ' 335-372 



New genera: Melanchroiopsis, Eumulleria, Fotopsis, Bouda, Pu- 

 mora, Neophaeus, Marzigetta, Alesua, Postanita, Platygraphis, 

 Anarnatula, Tapinolopha. 



New species: Charis craspediodonta, Tpidecla monenoptron, Thccla 

 bunnirae, T. viggia, T. nippia, T. janthodonia, T. vevenae, T. 

 muridosca, Errietas lachesis, Butleria penaea, Catia jobrea, Prenes 

 hemizona, Thespieus gayra, Lerema hypozona, Padraona sophistes, 



i Date of publication. 



