VT TABLE OF CONTENTS. 



Cook, O. F. East African Diplopoda <»f the Suborder Poly- 

 desmoidca, collected by Mr, William Astor Ohanler. — No, 

 1042. April 23, 1S9G 81-1 12 



New jjeuera : Antrodesiniin, Marplodesmus, (h'odefDniis. 

 New species: Astrodesmns sleVifer, MdrpfodcsMux chaiileri, Orodrsmiis 

 forceps, 0. hicolor, 0. iinicolor. 



■ On Geophilns attenuatis, Say, of the Class Chilopoda. — 



Xo. 1038. April 2.">, 180G 59-02 



Priodesmus, anew iienvis of Diplo])oda from Suriuam. — 



Ko. 1037. April 23, 1896 53-57 



New genus : Priodesmns. 



New species: Priodesmus acuK, P. para. 



Two new Diplopod Myriapoda of the (ienus Oxydesmus 



from the Congo.— Ko. 1036, April 23, 1896 47-52 



New species: Oxi/drsmns rrtwj^n', (>. jiahcllatiis. 



CoQUiLLETT, D. W. Revlslou of the North American JEmpi- 

 dtv — A Family of TwoAvinged Insects. — No. 1073. ^lay 25, 

 1896 387-440 



Newgeuera: Neoplasia, Empimorphu, Ntovoia, Kidiybiis. 



New species: Hemerodromia captns, H. rogatoris, Mantipeza palloris, 

 Brachy stoma rohertsonW, Hilara Johnsoui, If. cana, H. riridis, Empl- 

 morpha comantis, Empis loripedix, E. cliiiisd, E. lomatitis, K. valentis, 

 E. humUe, E. ravida, E. tenehrona, E. tersa, E. captiis, E. compia, E. 

 ai'ida, E. levicuJa, K. maiica, E. oiiosa, E. (jiilo^ta, E. virgata, Microph- 

 oi-ii.'s ravidi(s, Mythicomyia libiaJis, Rhamphomyla ravida, 11. loripedis, 

 Ii. caUfornica, B. pectoris, B. colorata, B. arvuata, B. amplipedis, 

 B. tertia, B. compta, R. nasoni, B. duplicis, B. bifilata, R. avida, B. oii- 

 osa, B. setosa, B. insecta, B. effera, B. niaiica, R. vaUja, B. ciliala, 

 R. sciitcllaris, B. fiitihriata, R. ahdita, R. virgata. A*. stidigtrotiiH, IL 

 amplicella, /'. atylata, B. piliyeronis, R. ftcxiiotia, R. parra, R. 

 gilvipiloxa, Xeocota wccdii, Mcghypcriis occideim, .Lcptope:a compta, 

 Syiicches dcbilin, »s'. hyaliiius, Hybos slossono', Plalypalpiis tcrsiin. P. 

 inciiltus, Tachydromia s(:hwar:ii. 



Dall, W. H. Diagnoses of new Speciesof Mollusks from the 



West Coast of America.— No. 1034. April 23, 1896 7-20 



New species: CaUiosloma iridium, C. tKrhiuiim, Aiiaplocainu-s borcalis, 

 Sola7-iellani(da, S. ceratophora, Rimula ( i)expansa, Eniargiinilajtabel- 

 lum, Choristes carpentcri, BenfhodoUiiin pacificiim, Phos coconeiisis, 

 Comiiiella bnnnieociiicta, I'nsiin (f) riifocaiidatus, Traclolira ■•^parta, 

 ScapheUa bcnthalis, Cnncellaria eenlrota, C. io, Plciiroioma (Stcir- 

 axis) aulava, Pleiirotornella casfauea, Xiiciila iphigenia, Limopsis 

 compresHHs, Philobrya atlautica, Callocardia Icpla, C. oralis, C.gigas, 

 ('allogo)iia angnlata, Periploma stcanisii, P. carpenieri. 



Diagnoses of new Mollusks from the Survey of the Mex- 

 ican Boundary.— No. 1033. April 23, 1896 1-6 



New sjiecies: Epiphragmopliora arizoiiensis, E. hacliitana, I'olygyra 

 chiricaliitarta, P. mearnsii, Holoapira {Ifetastoma) crosnei, H. (M.) 

 j)ilsbryi, H. {Dintomospira) bilamellata, H. (Haplostemma) mearnsii, 

 H. {Bostridiocentrum) reraeruziaua, Uiiio iiiitclitlli, Cerion (.1/aj/- 

 nardia) piveria. 



