EUTHRIA. 151 



E. LINEATA, Martyn. PL 72, figs. 229-231. 



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 inches. 



New Zealand. 



A broader species than E. plumbed, Yar. f erred, but the young 

 shells of this species are very like the latter. 



Yar. PERTINAX, Martens. Shell more ventricose, longitudinal 

 costse of the spire extending over the antepenultimate whorl ; 

 color bands less numerous. Length, 68 mill. 



Auckland Islands. 

 This variety has not been figured. 



Yar. LTTTORINOIDES, Reeve. PI. 72, fig. 231. 



Smaller, more ponderous, canal shorter. The t} T pe 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. MARTENSTANA, 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 synonym of 

 the above species. 



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



Vpper whorls longitudinally plicate, plicae becoming evanescent 

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

 revolving channels, making the interstices appear as though 

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

 divided by an impressed line into pairs. Grayish brown, revolv- 

 ing ribs darker; aperture yellowish 'brown, ribbed within and 

 stained darker in the interstices a the lip. 



Length, 1-25-1-75 inches. 



Monterey, Gal, to Sttka. 



F. Sitchensis, Midd., and F. incims, Glcl. (fig. 233), are 

 synonyms; the figure of the latter is, however, not very charac- 

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

 not sufficiently produced. 



