CONTENTS. 



I'agk 



Notes on the Spermatogenesis of the Wild and the Domesticated 

 Silkworms. 



By Naoiïipe Yatsu 215 



On a New Stalked Crinoid from the Sagami Sea (Phrynocrin/ts 

 obtortus). 



By H. MATSUMOTO 221 



Preliminary Notice of a New Interesting Ophiuran (Astrophiura 

 kawamurai). With Plate III. 



By H. MATSUMOTO ! . 225 



A Revision ot the Mantispidae of Japan. 



By Waro Nakaiiara 229 



A New Fresh-water Nemertine from Japan {Stichostemma gran- 

 dis). With Plate IV. 



By Dr. Iwaji Ikeda 239 



On a New Species of Chloromyxum from the Gall-bladder of the 

 Carp. 



By T. FujlTA 257 



A Hand-List of Japanese and Formosan Mammals. 



By B. AOKI . . . . 261 



A Catalogue of Hermit-crabs found in Japan (Paguridea exclud- 

 ing Lithodidae), with Descriptions of Four New Species. 

 {With 4 lextfigs.) 



By Arata Terao 355 



