162 LOO CHOO MOLLUSKS. 



face irregularly wrinkle-striate, and in places showing an excessively 

 fine, superficial spiral striation. Spire low conoidal, composed of 6 

 convex, slowly widening whorls, the last nearly twice as wide as the 

 preceding, a trifle descending in front, rounded at the periphery and 

 beneath. Aperture oblique, wide lunate ; peristome flesh-tinted, 

 narrowly expanded and subreflexed, and slightly thickened within, 

 dilated at the columellar insertion. Alt. 17, greater diam. 27j, 

 lesser 23 mm. 



Yaeyama (Okinawa) Island, Loo Choo group (Frederick Stearns). 



This species is apparently most nearly allied to the Chinese H. lati- 

 labris Mlldflf., but the umbilicus is more open, the lip narrower, 

 aperture more oblique, etc. The umbilicus is wider and more open 

 than in H. quoesita. 



Another specimen is smaller (alt. 15, greater diam. 24, lesser 

 diam. 20} mm.), and straw-colored, with the usual dark girdle. 



Eulota (Euhadra) quaesita Desh. Yaeyama. 



Eulota (Euhadra) mercatoria Gray. PI. X, figs. 1, 2, 3, 4, 5, 6. 



Yaeyama I. (Stearns, 29 specimens). 



Of this species I believe H. caliginosa Adams & Reeve (Voy. 

 Samarang, Moll., p. 62, pi. xvi, fig. 6) to be a synonym. The local- 

 ity " Mindanao " is, if I am right, probably incorrect. The species 

 shows the same great range of variability that is characteristic of 

 the Japanese Euhadras. 



Figure 4 represents a large specimen uniform blackish in color 

 except for slightly marked light bands above and below the periph- 

 ery. 



Figure 6 is the lightest specimen seen, being of a clear yellow tint 

 with a dark line at periphery. It is light below the sutures, like 

 the type of caliginosa. Figures 1, 2, 3 represent an average speci- 

 men. 



Figure 5 is the smallest shell, measuring 17j mm. diam. It is dis- 

 tinctly carinated in front, as are some other stunted specimens of the 

 lot. 



All gradations of form, size and coloring between these selected 

 specimens are represented in the series secured by Mr. Stearns. 



Eulota (Euhadra) connivens Pfr. 



Yaeyama Island (Stearns). 



This species varies from 17^ to 27 ram. in greatest diameter, and 

 shows much mutability in the degree of depression of the spire. 



