110 ART. 7. — 1. ijima: hexactin lleida, 



b^. — Dermalia, pentactins or predominantly pentaclins. Macrodiscohexaster iiiny measure 



nearly 1 mm. in diameter; its principals fused into a spherical mass 



Anlof^fiiru.'i Hchulzd I J. 



''• — With conuli, from the apex of which ]iroject needle-like prostalia. 



e'. — Dermalia, ])redominantly staiiiactins. Macrodiscohexaster not over I'JO \>. m diame- 

 ter; its principals separate Aalosaccux mil--<akiirii Ij. 



AULOSACCÜS SCHÜLZEI Ij. 



PI. VIII., figs. 26-28, and PL IX. 



AulosacGus Schulzei, Ijima, '96, p. 252. 



Ill Mr. Owston's collection there existed a single specimen 

 from which I have described this genus and species. It subse- 

 quently passed, together with the type specimen of Hyalascus 

 sagamiejisis, into the possession of Prof. B. K. Emerson of Am- 

 herst College, Mass. A second specimen of the species has never 

 been obtained. 



The type specimen (PI. IX., fig. 1) was procured by Mr. 

 OwsTON by purchase from a fisherman of the village Koshigoe, 

 near Enoshima, and there could be no doul)t of its having been 

 taken from the Sagami Sea. 



It is exquisitely vase-like, being broadest in the upper third 

 of its length and gradually narrowed below. The basal end is 

 cut oft' and not preserved. Total length of the specimen, 450 mm. 

 Greatest breadth, about 225 mm. Superiorly from the broadest 

 part the wall more or less curves in to terminate with a thin 

 oscular margin, which is much injured and may have been in 

 part somewhat out-flaring. The osculum is irregularly circular 

 with a diameter of approximately 150 mm. Thickness of wall 

 in the middle of the upper half, 25 mm.; same in the middle of 

 the lower half, 39 mm. The lower or severed end is somewhat 



