TABLE OF CONTENTS 



CoKER, Robert. Habits and economic relations of the Page. 



guano birds of Peru. No. 2298. September 11/ 1919.. 449-511 



CusHMAN, Joseph A. A new foraminifer commensal of 

 Cyclammina. No. 2290. July 31/ 1919 101-102 



New species: Iridia convexa. 



Recent foraminifera from off New Zealand, No. 2302, 



December, 16/ 1919 593-640 



New species: Technitella mestayeri , Hyperammina mestayeri, Toly- 



pammina horrida, Ammodiscus mestayeri, Reophex advena. 

 New variety: Reophax spiculifera, var. pseudodistans. 



CusHMAN, R. A. Notes on certain genera of Iclmeumon- 

 flies, with descriptions of a new genus and four new species. 

 No. 2296. August 27/ 1919 _ - '_ 373-382 



New genus: Zagryphus. 



New species: Neliopisthus similis, N. nigridorsum, Neliopistlms 

 luggcri {Ashmcad) , Thymaris americanus. 



Dall, William Healey. Descriptions of new species of 

 mollusca from the North Pacific Ocean in the collection of 

 the United States National Museum. No. 2295. Au- 

 gust 30/ 1919 293-371 



New genus: Elachisina. 



New species: Acteocina smirna, A. magdalenensis , Rehisa xystrum, 

 R. paziana, R. galapagana, Volvulella cooperi, V. californica, V. 

 panamica, V. catharia, V. callicem, Scaphander ivilletti, Diaphana 

 brannea, D. californica, Cylichnella (Ballinella) diegensis, Haminoea 

 olgae, Philine bakeri, P. hemphilli, Cryptogemma eidola, C. orcgon- 

 ensis, Borsonella civitella, Lorajtora, L. casentina, L. galgana, L. 

 amiata, L. rassina, Philbertia capaniola, Mangilia {Kxirtziella) 

 alesidota, M. (K.) tersa, Agathotorna pomara, Zetekia cvrta, Admete 

 rhyssa, Marginella albuminosa, M. politula, M. eremus, M. anticlea, 

 Hyalina myrmecoon, Strigatella (Atrimetra) catalinae, S. (A.) 

 diegensis, S. (A.) mexicana, Volutopsius rotundus, V. filosus, V. 

 diminutus, Beringius marshalli, B. indentatus, Ancistrolepis cal- 

 ifornicus, A. beringianus, A. trochoideus, Plicifusus (Retifusus) 

 incisiis, P. (R.) oceanodromae, Colus {Lalifasus) pharcidiis, C. 

 (Aulacofusus) nobilis, C. (A.) ombronius, C. {A.) adonis, C. (A.) 

 bristolensis, C. {A.) barbarinus, C. (A.)sapius, C. (A.) calathus, C. 

 {A.) capponius, C. {A.) halidonus, Aulacofusus (Limatofusus) 

 pulcius, A. (L.) timetus, A. (L.) trophius, A. (L.) morditus, A. 

 (L.) dimidialus, A. (L.) severinus, A. (L.) halimeris, A. (L.) trom- 

 binus, Colus {Latisipho) errones, C. (L.) clementiniis, C. (L.) dal- 

 masius, Chrysodomus smirnius , C .nuceus, C. pribiloffensis, C. vino- 



i Date of publication. 



