﻿4 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 59 



HAMINEA CANALIS, new species 



Shell small, short, cylindrical, subequally rounded at both ends, 

 a shallow pit at the apex, a rather callous pillar with a very minute 

 chink behind it, more noticeable in the young shells ; outer lip paral- 

 lel with the body, but little elevated above the summit of the shell ; 

 surface polished, entirely and uniformly covered with sharp spiral 

 striae with wider interspaces. Some of the specimens show a feeble 

 constriction about the middle. Length 4.0; max. diameter 2.0 mm. 



Station 5850. Type, U. S. Nat. Mus. 214355. 



This species is notable for its short and cylindrical form and close 

 spiral striation ; the latter character varies a little in density in 

 different individuals, but always covers the whole shell. H. papyrus 

 A. Adams is perhaps nearest to it, but is proportionately longer. 



MARINULA COLONIA, new species 



Shell small, of about four whorls, brown, with a darker band at the 

 suture and another at the periphery ; the spire short and blunt with 

 an obtuse shoulder to the last whorl ; outer lip sharp, simple ; body 

 smooth with three very prominent lamellae, the posterior strongest ; 

 pillar curving evenly into the outer lip. Height 5.0; max. diameter 

 3.0 mm. 



Station 5868. Type, U. S. Nat. Mus. 214356. 



This genus is reported in the recent state to be confined to the 

 West Coast of Middle and South America, Australia and the Med- 

 iterranean. 



OLIVELLA MYRMECOON, new species 



Shell very small, stout, solid, short, of about five whorls ; the 

 spire about one-third the whole length, the suture narrowly but 

 deeply channelled. Surface smooth, whitish in the fossils ; body with 

 a thin coat of callus, pillar excavated, with a single prominent plait 

 on the outer edge ; anterior fasciole short, smooth, the posterior edge 

 abrupt. Length 4.0; max. diameter 2.0 mm. 



Station 5849. Types, U. S. Nat. Mus. 214357. 



This small but apparently adult species occurs in large numbers. 

 It is notable for its robustly oval form. O. mutica Say, is allied to 

 it but is much larger and with a much more profuse deposit of callus. 

 The young of O. mutica is proportionately more slender and longer. 



CERITHIUM (POTAMIDES?) MILIUM, new species 



Shell small, solid, compact, whitish with about eight whorls; 

 nucleus minute, smooth, of about two whorls, followed by reticulately 



