[NDEX 



713 



Pavlovsky, E. N., and Zarin, E. J. 



On the Structure of the Aliment- 

 ary Canal and its Ferments in the 

 Bee (Apis mellifera, L.), 509- 

 556, pis. 15-17. 



Peripatus ; infra-cerebral organs, 

 Dakin, 409. 



Pheretima, Bahl, 49. 



Pigments, Fulton, 339. 



Robson, G. C. On the anatomy and 

 affinities of Paludestrina ven- 

 trosa, Montague, 159-186, 



Saccocirrus ; gametogenesis, Ga- 



tenby, 1. 

 Segmentation of Head in Squalus, 



de Beer, 457. 



Sex-determination in Abraxas, 

 Doncaster, 397. 



Simocephalus ; labral glands, 

 Cannon, 213. 



Situs inversus among Echinoid 

 larvae, Ohshima, 105. 



Spermatogenesis : 



Lepidoptera, Bowen, 595. 

 Lice, Cannon, 657. 



Squalus ; segmentation of Head, de 

 Beer, 457. 



Stephenson, T. A. On the Classifi- 

 cation of Actiniaria : Part III. 

 Definitions connected with the 

 forms dealt with in Part II, 247- 

 321. 



Zarin, E. J. See Pavlovsky, 509. 



