new Japanese Marine MoUusca. 35 



Nutica ovata, sp. ii. (PI. 11. fig. .'».) 



Testa ovato-turbiiiata, ponderosa, breviter umbilicata, pallide luteo- 

 liisca, alitor liaiul coloruta ; spira coiiica, elatiuscula ; anfractus 

 4, convexi, fere hcves, irregubiriter oblique sculpti, sutura aii- 

 guste impressa sejuiicti; anfractus iiltimus | longitudiiiis testae 

 ujquaiis, ovalis, infra rotuiidatus ; umbilicus vix profundus, tri- 

 goniforniis ; apertura cUiptica, latiuscula, intus fusco tincta, 

 lacvis ; peristoma crassiusculum ; columella crassicallosa, alba, 

 polita, iu regiouo umbilicali lobata. 



Alt. 59, maj. diam, 48 mm. 



I/ab. Ilidaka, Japan. 



'J'liis species is allied to i\^ ianlhostoma, Desli., but of a 

 much more ovate form ; tlie callosity in the uuibilical 

 region is different in form, leaving the umbilicus very nar- 

 rowly open. 



Katica hihalteata, sp. n. (PI. II. fig. 7.) 



Testa globosa, orassa, umbilicata, albida, fusco-carneo bibalteata ; 

 sjiira parva, vix elevata, anfractus 5, primi minuti, leviter con- 

 vexi, oblique tenuissime striati, sutura anguste impressa scjuncti ; 

 anfractus ultimus inflatus, rotundus ; apertura semicircularis, 

 intus alba; peristoma acutum ; columella oblique rectiuscula, 

 postice valde callosa, in medio effuso ; umbilicus vix profundus, 

 callo columellari semi-obtectus. 



Alt. 17, maj. diam. 17 mm. 



Hah. Nagasaki. 



This double-banded species bears some external resemblance 

 on a small scale to N. spadicea, Gmel., but tlie umbilicus is 

 much less open and the columella callus spread in a diti'ereut 

 form. 



Naticafigurata, sp. n. (PI. II. fig. 6.) 



Testa globosa, tenuis, griseo-albida, aurantio dense fulgurata ; 

 spira parva, levissime elevata ; anfractus 4, convexi, laeves ; an- 

 fractus ultimus intlatus ; apertura semicircularis; peristoma 

 acutum ; umbilicus callo columellari obtectus. 



Alt. 14, diam. 13 mm. 



Hah. Rikuzen, Japan. 



A species characterized by elaborate figure-colouring ; its 

 umbilicus is completely covered, as in N. imperforata^ fcjow., 

 from which species it differs somewhat in form and more iu 

 pattern. 



3* 



