13-1 BULLETIN : MUSEUM OF COMPARATIVE ZOOLOGY. 



Pseudolovenia hirsuta A. Ag. and Cl. 



Pseudolovenia hirsuta A. Agassiz and Clark, 1907. Bull. M. C. Z., 50, p. 255. 



These specimens cannot be distinguished from those of the same size from 

 Hawaii. 



Station 4906. Southwest of Koshika Islands, Japan, 369-406 fathoms. 

 Two specimens. 



Maretia tuberculata A. Ag. and Clark. 



This species is not at all like alta, elevata, or elliptica, and although it is very 

 similar to planalata in the form of the test and the petals, the latter are narrower 

 and shorter than in that species. The striking character, however, is the presence 

 of few, very large primary tubercles in the anterior and lateral interambuiacra, 

 like those of alta ; there are 1-3 in the anterior and 3-4 in the lateral spaces. 

 The absence of genital pores and the condition of the petals show that the speci- 

 men is immature bufit is evidently not the young of any known species. The 

 test is 26 mm. long and 22 mm. wide, and the general color is very light purplish- 

 gray. 



Station 4S75. Eastern channel, Korea Strait, 59 fathoms. 



One specimen. 



Echinocardium australe Gray. 



Ecldnocardium australe Gray, 1851. Ann. Mag. Nat. Hist., (2) 7, p. 131. 



The only specimen is immature, 14 mm. long, and almost pure white. 

 Station 4962. Between Kobe and Yokohama, Japan, 36 fathoms. 

 One specimen. 



Echinocardium dubium A. Ag. and Clark. 



The occurrence in the northwestern Pacific of an Ecliiuocardium allied to flaves- 

 cens and pennatifidum is interesting. This species is certainly very closely allied 

 to these north Atlantic forms, the only differences worthy of note being in the form 

 and position of the anal system and subanal fasciole. The posterior end of the test 

 does not overhang the anal system at all, but the latter is flush with the test ; its 

 vertical diameter is noticeably longer than the transverse. The subanal fasciole 

 is nearly circular and not at all pyriform. The color is pale brown with the 

 numerous small spines almost white, when dry. The largest specimen is 31 mm. 

 long. 



Station 4965. Between Kobe and Yokohama, Japan, 191 fathoms. 



5047- Between Hakodate and Yokohama, Japan, 107 fathoms. 

 " 5055. Suruga Gulf, Japan, 124 fathoms. 



Three specimens. 



