390 BULLETIN OF THE 



Liotia miniata n. s. 



Plate XXVIII. Fig. 11. 



Shell minute, white, picked out with streaks of pale brown, or dots, or radi- 

 ating blotches of bright rose-color. Whorls about three, surface finely sha- 

 greened in a granular manner; no radiating sculpture other than incremental 

 lines; spiral sculpture of, on the last whorl, one generally minutely nodulous 

 small spiral rib at the suture, one strong spiral not nodulous near the periph- 

 ery, another at the periphery, and on the edge of and within the wide umbili- 

 cus two or three very strong evenly noduled spirals, the outer forming the bor- 

 der or umbilical carina, the others ascending within the umbilicus, all separated 

 by very deep channels. On the outer surface there are occasionally fainter 

 intercalary spirals. Suture distinct, hardly channelled. Aperture circular, 

 slightly varicose in the adult. Operculum chiefly calcareous, multispiral, 

 concave, with a central perforation when weathered. Max. diam., 2.5; min. 

 diam., 2.0; alt., 2.0 mm. 



Habitat. Barbados, in 15 fms. Nassau, N. P., and Samana Bay, Santo 

 Domingo, dead on beach, DalL 



This pretty little shell has much the general appearance of L. tricarinata on 

 a much smaller scale and with a different umbilicus and details of sculpture. 



Liotia variabilis n. s. 



Plate XXIII. Figs. 2, 2 a. 



Shell trochiform, white or waxen, of about five turns, with a minute smooth 

 nucleus; suture distinct, channelled; radiating sculpture of sharp close ele- 

 vated lamellae, a good deal like those of L. Briarcus but less elevated and 

 irregular, more nearly conforming to the lines of growth; these are continuous 

 over the whole surface. Spiral sculpture consisting, on the last whorl of the 

 adult, of a ridge near the suture, with a much smaller adjacent one just out- 

 side of it; a very stout spiral near the periphery, another at the periphery, an- 

 other below and slightly within the periphery which forms the basal margin. 

 There is a stout rib with pointed nodules at the edge of the umbilicus, a groove 

 outside this, then a much finer spiral with rounded nodules; between this and 

 the basal margin the flattened area has five or six fine simple raised spirals, 

 crossed by the surface lamellae. The umbilicus is small, mostly smooth, with, 

 in the typical form, a single spiral thread bearing sparse lamellar spines near 

 the umbilical carina. Aperture nearly circular, hardly reflected, produced 

 above with a small row of faint round tubercles on the lower edge just within 

 the margin. Operculum multispiral, horny, dotted with bead-like limy 

 granules. Max. diam., 6.0; min. diam., 5.0; alt., 4.5 mm. 



Variety microforis. Shell with radiating undulations which granulate the 

 basal sculpture, and with the last whorl so compactly coiled as nearly or quite 

 to close the umbilicus. 



