Vrn TABLE OF CONTENTS 



Article 



Rathbun, Mary J. A new crab from the Eocene of Florida. 



No. 2786, pp. 1-4. May 6, 1929 ^ 15 



New genus: Ocalina. 



New species: Ocalina floridana. 



Reardon, Lucy. A contribution to our knowledge of the 

 anatomy of the fresh-water mussels of the District of Co- 

 lumbia. No. 2782, pp. 1-12. April 22, 1929 ^ II 



Riley, J. H. A review of the birds of the islands of Siberut 

 and Sipora, Mentawi group (Spolia mentawiensia). No. 

 2775, pp. 1-45. April 6, 1929 1 4 



Roe, Glenwood C. A new nematode, Sincosta aherrans, new 

 genus and new species from a rodent. No. 2788, pp. 1-3. 

 May 11, 1929' 17 



New genus: Sincosta. 



New species: Sincosta aherrans. 



Sandground, J. H. A new liver fluke from a monkey and new 

 parasitic roundworms from various African animals. No. 

 2783, pp. 1-11. June 10, 1929 1 12 



New genera: Leiperiatus, Colobostrongylus. 



New species: Dicrocoelium colobusicola, Osivaldocruzia agaynae, 



Colobostrongylus strongi. 

 New combination: Leiperiatus hopkeni. 



Treadwell, a. L. Two new species of polychaetous anne- 

 lids from the Argentine coast. No. 2797, pp. 1-5. June 7, 

 1929 ' 26 



New species: Halosydna grisea, Leodice argentine nsis. 



• Date of publicat ion. 



