EUTHRIA. 151 



E. LiNEATA, Martyn. Fl. 12, figs. 22l»-231. 



Yellowish white regularly lineated with chestnut revolving 

 bands, which are sometimes raised into low ridges ; pink or pur- 

 plish within the aperture. Length, 1-25 to 2 inclies. 



Wew Zealand. 



A broader species than E. plumbea, Ysxr. ferrea, hut the young- 

 shells of this species are very like the latter. 



Var. PERTiNAX, Martens. Shell more ventricose, longitudinal 

 costge of the spire extending over the antepenultimate whorl ; 

 color bands less numerous. Length, 68 mill. 



Auckland Islands. 

 This variety has not been figured. 



Var. LiTTORiNoiDES, Reeve. PI. 12, fig. 231. 



Smaller, more ponderous, canal shorter. The type figured by 



Reeve (fig. 229), is a very different-looking shell, but I have a 



specimen before me which seems to connect it with lineata. 



New Zealand. 

 E. Martensiana, Hutton. 



Smaller than Littorinoides, much thinner, spiral whorls more 



distinctly costulate. Length, -7 inch. 



New Zealand. 



Not figured. Will very probably' prove to be a S3'nonym of 



the above species. 



E. DiRA, Reeve. PI. 72, figs. 232, 233. 



Upper whorls longitudiuallv plicate, plicae becoming evanescent 

 on the body-whorl ; whole surface deeply engraved with narrow 

 revolving cliannels, making tlie interstices appear as though 

 covered with revolving, flat-top ribs ; sometimes these ribs are 

 divided ])y au impressed line into pairs. Grayish brown, revolv- 

 ing ribs darker; aperture yellowisli brown, ribbed within and 

 stained darker in the interstices at tlie lip. 



Lengtli, l-2.5-l'75 inches. 



Monterey, Gal., to Sitka. 



F. Sitchensis, Midd., and F. incisus, Gld. (fig. 233), are 

 synonj^ms; the figure of the latter is, however, not very charac- 

 teristic of the species, being too much inflated and with the canal 

 not sutficientlj' produced. 



