78 



ART. 2. — H. MATSUMOTO 



Sagami Sea. Suruga Gulf; 108 fathoms (Claek). Off Omai 



Zaki, Yenshii Sea, 34-36 fathoms (Claek). Kagoshima (Dödeelein). 



Colnett Strait; 83-84 fathoms (Claek). Eastern Sea; 103-152 



fathoms (Claek). Fusan, Korea (Claek). 



Wladiwostok (Dödeelein). ? Off Agattu Is. ; 482 fathoms 



(Claek). Indian Ocean. 



I fail to find any marked distinction between the coniferus 



and the dofleini type. There are many specimens which must be 



referred to the coniferus type 

 in most characters, but are 

 beset with a few or many 

 large hemispherical tubercles 

 on the dorsal side of the arms, 

 as observed by Dödeelein 

 himself, but there are others 

 which gradually pass over into 

 the dofleini type. The large 

 tubercle on the back of each 

 radial shield near its outer 

 end, present in most speci- 

 mens of the coniferus and in 

 some of the 2:)ardaUs type, is 

 also often present in smaller 

 and moderately large speci- 

 mens of the dofleini type. 

 Such a tubercle is indicated 

 on some of the radial shields 

 in Dödeelein's fig. 5, PL IV. 

 This tubercle later becomes 



quit>«-,Q indistinguishable, owing to the increase in number of similar 



«/v 



Fig. 23. Astrodadus coniferus. a. Erom above. 

 x|. 1). From below. x|. c. From below. x2. 



