290 



AET. 2. — H. MATSUMOTO : 



Eastern Sea ; 103-152 fathoms (Claek). 

 Malaysian waters. 



Ophioniiisiuiii trychnum Claek. 



Ophiomusmm trycJmum : Clark, Bull. U. S. Kat. Mns., LXXV, 1911, 

 p. 109, fig. 40. 



Two specimens ; Iwatogaké, Sagami Sea ; 300 fathoms. Two 

 specimens ; Okinosé, Sagami Sea. Three specimens ; locality- 

 unknown. 



Surnga Gulf; 94-150 fathoms (Clark). Uraga Channel; 70- 

 302 fathoms (Claek). Off eastern .Japan; 191-578 fathoms (Claek). 



In my specimens, 

 there are always two, 

 instead of three, very 

 large plates in each 

 dorsal interbrachial 



space. The radial shields 

 and the large interradial 

 marginal plates are often 

 very rough and tuber- 

 cular. The dorsal side 

 of the arms also shows 



Fig. 78. Ophiomusmm irychnum. From above, xi. 



a tendency to be rough and uneven. 



Ojjhiomusiiitn lïïtkeMl Lyman. 



Opldomushim liUkeni : Lyman, BuU. Mus. Comp. Zool., V, 1878, p. 114, 

 PI. V, figs. 138-140; Lyman, Eep. ClialleDger, V, 1882, p. 91, PL I, figs. 

 16-18 ; Clark, Bull. U. S. Nat. Mus., LXXY, 1911, p. 107. 



Eastern Sea ; 139-152 fathoms (Claek). 



