[655] INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. 361 



6 to 25 fathoms ; Bay of Fundy, 4 to 20 fathoms. Fossil in the Post- 

 Pliocene of Canada. This species is usually brownish or chestnut-color, 

 but is also frequently white. 



Eissoa eburnea Stimpson, has been recorded (as Rissoella(f) eburnea) 

 by Dr. G. H. Perkins, from Long Island Sound, near New Haven, but 

 I have seen no undoubted shells of this species from any locality south 

 of Massachusetts Bay. The shell referred to by Dr. Perkins was beach- 

 worn, and may have been some other species. The figure given in the 

 second edition of Gould s Invertebrata (fig. 564, p. 297), does not rep 

 resent this species. See the figure in Stimpson s Shells of New England, 

 Plate 1, figs. 1, la. This shell appears to be a Jeffreysia. 



From Huutiugton, Long Island, I have seen a shell closely resembling 

 Rissoa latior Stimpsou, (M. and Adams, sp.), if not identical with it. 



SKENEA PLANOEBIS. Plate XXIY, fig. 142. (p. 383.) 



Forbes and Hanley, British Mollusca, vol iii, p. 156, Plate 74, figs. 1-3, and Plate 

 G. G, figs. 1 and la (animal) ; Stirnpson, Shells of New England, p. 35; Gould, 

 Invert., ed. ii, p. 296, fig. 563. Turbo planorbis Fabricius, Fauna Gronl., p. 

 394, 1780. Skenea serpuloides Gould, Invert., ed. i, 247, fig. 189. 



Long Island Sound to Greenland, Iceland, Spitzbergen, Scandinavia; 

 and northern and eastern coasts of Europe generally, to England and 

 France. Near New Haven, Connecticut, common; Watch Hill,Ehode 

 Island ; Cuttyhunk Island. Yery common on all rocky shores in Massa 

 chusetts Bay, Casco Bay, and Bay of Fundy. Fossil in the Post-Pliocene 

 of Scotland and Scandinavia. 



STYLIFER STIMPSONII Yerrill. (p. 460.) 



American Journal of Science, vol. iii, pp. 210 and 283, 1872. 



Shell white, short, swollen, broad oval ; spire short, rapidly enlarging. 

 Whorls four or five, the last one forming a large part of the shell ; con 

 vex, rounded, with the suture impressed, surface smooth, or with very 

 faint striaB of growth; a slightly impressed revolving line just below 

 the suture. Aperture large and broad. Length about .15 of an inch ; 

 breadth, .12. 



Parasitic on the dorsal surface of Strongylocentrotus Drobachiensis, 

 from oif New Jersey, in 35 fathoms (Captain Gedney); and Saint George s 

 Bank, north latitude 41 25 , west longitude 65 50 , 3&quot;, in 60 fathoms, 

 (S. I. Smith). 



EULIMA OLEACEA Kurtz and Stimpson. Plate XXIV, fig. 149. (p. 418.) 



Proceedings Boston Soc. Nat. Hist., vol. iv, p. 115, 1851; Stimpson, Shells of New 



England, p. 39, Plate 1, fig 6, 1851 j Gould, Invert., ed. ii, p. 332, fig. 603. 

 Vineyard Sound to Beaufort, North Carolina. In Vineyard Sound it is 

 not uncommon on Thyone Sria-reus, in 4 to 10 fathoms. Buzzard s Bay 

 (Stimpson). 



