VIII BULLETIN 10 0, UNITED STATES NATIONAL MUSEUM 



Four New Species of Polychaetous Annelids Collected 

 by the United States Fisheries Steamer "Albatross" 

 during the philippine expedition of 1907-1910 



" By Aaron L. Treadwell p 



1. Macellicephala maculosa 314 



2. Iphionella elongata 315 



3. Onuphis branchiata 318 



4. Maldane philippinensis 320 



The Philippine Land Mollusks of the Genus Opisthoporub 



By Paul Bartsch 

 . Operculum of Opisthoporus 324 



