302 JORDAN & SNYDER : NINE NEW SPECIES OF 



1. Acipenser kikuchii, Sagami Bay ; Imperial University. 



2. Lepidopus aomori, Aomori ; type in Museum at Aomori. 



3. Tetrapturus mitsukurii, Misaki ; Matsushima ; Otaru. 



4. Tetrapturus mazara, Misaki. 



5. Bentenia œsticola, Kashiina ; Imperial University. 



6. Ebisus sagamhis, Misaki ; Imperial Museum. 



7. Reinhardtius matsumurœ, Misaki ; no. 456, Imperial, 



Museum. 



8. Trachypterus ishikaivcu, off Tokyo ; no. ;589, Imperial, 



Museum. 



9. Trachypterus ijimce, off Tokyo ; no. 590, Imperial Museum. 



1. Acipenser kikuchii Jordan and Snyder, new species. 

 (PI. XV., figs. 1, 2). 



Head, 4 7.3 i'l body; depth 7; snout 2"/;? i'l head. Dorsal 

 plates, 11 ; lateral 32 ; ventral, 11. Dorsal rays III, G3 ; anal, 

 III, 37. 



Head longitudinally concave above ; snout shortish, rather 

 sharp. Plates of back large, rugose or warty, with no distinct 

 spines ; plates of side each with a spine in front ; those below 

 smooth. Dorsal and anal each followed by a large rugose 

 plate. No bony plates on body except a few small ones between 

 the large anterior ones of dorsal series. Skin of body soft and 

 smooth between the plates. Opercle rugose. Cheeks with fine 

 stellate prickles. Height of dorsal contained 2 Ys times in head. 

 Insertion of anal below posterior part of dorsal. Pectoral con- 

 tained 17.1 in head. Caudal, from above, lYs times head. 



Described from a mounted specimen 180 centimeters long, 

 in the museum of the Imperial University, Tokyo. 



Type locality, Misaki, Sagami Bay, Province of Sagami, Japan. 



