VI TABLE OF CONTENTS. 



Page. 



Treadwell, a. L. Nereis (Ceratonereis) alaskensis, a 

 new polychaetous annelid from Alaska. No. 2397, 

 Januarys, 1922 ' 1-3 



New species: Nereis (Ceratonereis) alaskensis. 



TuBANGUi, Marcos A. Two new intestinal trematodes 



from the dog in China. No. 2415. May 3, 1922 ^ 1-12 



New species: Prohemistomum industrium. 

 New variety: Echinochasmus per/oliatus shieldsi. 



Washington, Henry S. The jade of the Tuxtla statuette. 



No. 2409. February 23, 1922 1 ; 1-12 



Wilson, Charles Branch. North American parasitic 

 copepods belonging to the family Dichelesthiidae. No. 

 2400. March 22, 1922 1 1-100 



New genus name: Bassettithia. 



New species: Lernanthropus caudatus, L. rathbuni, L. leidyi, L. 



chlamydolus , L. paenulatus, Nemesis atlantica, Pseudoofcnus 



buccatus. 

 New names: Lernanthropus tenuis, L. nordmanni. 



' Date of publication. 



