410 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xsxvi. 



but in the two Challenger specimens I have examined the arm tips 

 are broken off, as delineated in all Carpenter's figures. 



One of the specimens was dissected to determine the presence or 

 absence of infrabasals. They were found to be present, resembling 

 closely those of Isocrintui decoi-it.s. 



Genus METACRINUS P. H. Carpenter. 



METACRINUS WYVILLII P. H. Carpenter. 



One broken specimen from station 523(); off the eastern coast of 

 Mindanao, north of Lianza Bay; 494 fathoms. 



It agrees well with a specimen taken near the Kermadec Islands 

 in G30 fathoms, in the U. S. National Museum. 



