186 



ART. 2. — H. MATSÜMOTO 



Awiphipholis Japoniea Matsx .moto. 



Amphipholis japoniea : Matsumoto, Proc. Acad. ZSat. 8ci. Pliiladelpliia, 

 1915, p. 71. 



Numerous specimens ; Aral Beach, ÙMisaki Marine Biological 

 Station. One specimen ; Tomo, Bingo. One specimen ; Asami 

 Bay, Tsushima. One specimen ; Akuné, Satsuma. Several speci- 

 mens ; Shimabara, Hizen. 



Diameter of disk 3 mm. Length of arms 1 2 mm. Width of 

 arms at base 0.5 mm. 



Disk circular, covered with fine, thin. im])ricating scales, 

 which are again covered over by a thin skin, so that the surface 



of the disk is very 

 smooth. Radial 



shields comparative- 

 ly large, pear- seed 

 shaped, slightly 



shorter tlum half the 

 disk radius, al>ou!f- 

 two and a lialf 

 times as long as 

 wide, completely 

 joined in pairs, ex- 

 cei>t at the very 

 inner ends, where 

 tlicy are separated 

 from each other by 

 a triangular, wedge- 

 shaped scale. Inter- 

 bra chial ventral sur- 

 facivs covered also 



Fig. 49. Amph'qiltolis japoniea. x27. u. From above. 

 h. From below, c. Side view of two arm joints neai- 

 disk. 



