Mr. A. Adams on the Scalidre of the Sea of Japan. 479 



XLVII. — On the Scalidse or "Wentletraps" of the Sea of Japan ; 

 with Descriptions of some new Species. By Arthur Adams, 

 F.L.S. &c. 



The Japanese Islands form a portion of that great submarine 

 chain of mountains, upwards of six thousand miles in length, 

 which extends from the Philippine Islands on the south to the 

 Kurile and Aleutian Islands on the north. It is therefore 

 natural to suppose that species of Mollusca hitherto found only 

 among the Philippine group should be discovered among the 

 Japanese Islands, especially when the influence of the Gulf 

 Stream is taken into consideration, which extends as far as 

 Niphon, and even induces a current through the Korea Strait 

 into the Sea of Japan. 



I have observed in the waters of Japan numerous species of 

 Bullidce, Cithara, and Mangelia, brought by Mr. Cuming from 

 the Philippines; and the same is the case, as we shall now 

 show, with the Scalida or " Wentletraps." 



1. Genus Scala, Klein. 



Shell solid, turbinate or turreted ; whorls ribbed. Aperture 

 circular; peritreme with a marginal varix. 



1. Scala Pallasii, Sow. Mon. Scalaria, figs. 14, 15, 16. 

 Hab. Korea Strait ; 46 fathoms. 



Found also by Mr. Cuming in the Philippines. 



2. Scala aculeata, Sow. Mon. Scalaria, figs. 35, 36,37. 

 Hab. Tsu-Sima; 16 fathoms. 



Found by Mr. Cuming in the Philippines. 



3. Scala replicata, Sow. Mon. Scalaria, figs. 23, 24. 

 Hab. Mino-Sima; 63 fathoms. 



Brought by Mr. Cuming from Lord Hood's Island. 



4. Scala obliqua, Sow. Mon. Scalaria, fig. 69. 

 Hab. Mino-Sima ; 63 fathoms. 



No locality is given by Mr. Sowerby. 



5. Scala muricata, Kien., Sow. Mon. Scalaria, figs. 29, 31, 32. 

 Hab. Mino-Sima; 63 fathoms. 



" A common West-Indian species." (Sow.) 



