VI TABLE OF CONTENTS. 



Page. 



Clark, Austin Hobart. On a Collection of Recent Crinoids 



from the Philippine Islands.— No. 1673. May 13, 1909 «. 391-410 



Xew genus: Crotalometrn. 



New species: Phanogenia minima, P.delicata, Comanthus poli^cnemis, 

 Pontiometrn insperatus, Cenometra delicata, Ptilotnetra pulcherrima, 

 Stenometra arachnnides, Crotalometra eupedata, Pachylometra 

 levigate, Iridometra exquisita. 



. Revision of the Crinoid Family Comasteridse, with 



Descriptions of New Genera and Species. — No. 1685. 



June 7, 1 909 « 493-507 



New genera: Cominia, Comactinia, Leptonemaster, Comissia, 



Nemaster. 

 New species: Leptonemaster venustus, Comissia lutkeni, Nemaster 

 grandis. 



CocKERELL, T. D. A. Descriptions of some Bees in the 



U. S. National Museum.— No. 1674. May 13, 1909 « 411-420 



New species: Emphoropsis vierecJd, Mesotrichia abbotti. 

 New subspecies: Emphoropsis murihirta murina. 



. See under Robbins, W. W 381-384 



CouTiERE, Henri. The American Species of Snapping 

 Shrimps of the Genus Synalpheus. — No. 1659. January 

 30, 1909 « 1-93 



New name: Synalpheus lochingtoni. 



New species: Synalpheus paulsonoides, S. Intastei, S. apioceros, 'S. 



townsendi, S . fritzmiilleri, S. hemphilli, S. nobilii, S. sanlucasi, S. 



digv£ti, S. goodei, S. sanctithomx , S. grampusi, S. pandionis, S. 



brooksi, S. herricki, S. pectiniger, S. androsi, S. rathbunse, S. 



paraneptunus,S.albatrossi, S.merospiniger, S.trionychis, S. bakeri, 



S. pkysocheles, S. otiosus, S. mushaensis, S. maccullochi, S. lopho- 



dactylus, S. sladeni. 

 New subspecies: Synalpheus apioceros sanjosei, S. a. mayaguensis, 



S. a. leiopes, S. a. desterroensis, S. paulsoni liminaris, S. p. sene- 



gambiensis. 



CusHMAN, Joseph A. Ammodiscoides, a New Genus of 



Arenaceous Foraminifera.— No. 1676. May 13, 1909 «. . . 423-424 



New genus: Ammodiscoides. 



New species: Ammodiscoides turbinatns. 



EvERMANN, Barton Warren. See under Jordan, David 



Starr 165-172 



Gay, M. E. See under Holmes, S. J 375-379 



GiDLEY, James Williams. Notes on the Fossil Mammalian 

 Genus Ptilodus, with Descriptions of New Species. — No. 



1689. June 19, 1009" . 611-626 



New species: Ptilodus gracilis. 



« Date of publication. 



