114 COL. R. H. BEDDOME ON NEW [Mar. 5, 



swollen, the latter much the largest; sculpture on the antepenultimate 

 a distant but rather fine costulation, on the whorl above much closer, 

 on the penultimate very fine, close, and inconspicuous, on the last 

 whorl rather distant but fine ; last whorl not ascending much on to 

 the penultimate ; a constriction ou the penultimate above the colu- 

 mellar margin : peristome very thick, about g breadth of shell, not 

 dilated at its outer margin ; inner portion of lip not expanded, 

 shining, yellowish, continuous round apex of aperture, where it is 

 striated : aperture vertical, circular ; no tooth. Length 3 millim. 

 Hab. Koror. 



7. DiPLOMMATiNAGiBBONi, sp. nov. (Plate XII. figs. 7, 7«, 76.) 

 Shell sinistral, gibboso-ovate, not rimate, white or pale yellowish, 



with a few dark blotches, rather thin, semitransparent : whorls 7, 

 penultimate very much the largest and most swollen ; sculpture a 

 fine, close, regular, oblique striation across all the whorls ; last whorl 

 not ascending much on to the penultimate, furnished with an incon- 

 spicuous blunt fold a little behind the peristome, a slight constriction 

 on the penultimate whorl, above the columellar margin : peristome 

 thin, single, not continuous round the apex of aperture (the striations 

 of the penultimate whorl running right into the orifice), dilated in- 

 side only at the columellar margin, where it is furnished with a small 

 papilla-like tooth, below which there is a lunate lamella-like process 

 running back into the shell to the opposite wall beyond the peristome ; 

 aperture subauriculate. Length 2g raillira. 

 Hab. Koror. 



8. DiPLOMMATiNA PATULA, Semper. (Plate XII. figs. 8, 8 a.) 



Shell sinistral, oblong, conical, slightly rimate, moderately thick, 

 reddish brown : whorls Q^-7 ; sculpture on the upper whorls a fine 

 close, oblique striation, rather finer on the penultimate, particularly 

 on the side above the aperture ; on the last whorl coarse, distant, 

 and lamella-like, except just behind the outer peristome, where it is 

 finer and close ; last whorl not ascending much on to the penultimate ; 

 the constriction on the penultimate indistinct, over centre of aperture : 

 peristome moderately thick, not \ breadth of shell, gradually dilated 

 outwards, the outer margin prominently winged, the interspace 

 finely costulate ; the inner lip continuous and faintly striated above 

 the aperture : aperture subcircular, no tooth ; within shining orange- 

 coloured. Length 5| millim. 



Hab. Koror. 



I at first thought this species undescribed, the lamella-like costula- 

 tions of the last whorl are so unlike those in the figure of Palaina 

 patula in M. Crosse's Journal, xiv. p. 349, pi. x. fig. 3 (1866); there, 

 however, being a general resemblance in size, shape, and colour, I sus- 

 pected some mistake of the artist of Semper's species, so I sent a speci- 

 men to M. Crosse, who has kindly compared it with his type specimen 

 and identified it, the artist having incorrectly represented the last 

 whorl in his plate. The species appears to be common in Koror, as many 

 examples were collected ; in some specimens the continuation of the 



