[661] INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. 367 



RHIPIDOGLOSSA. 



MARGARITA OBSCURA Gould. Plate XXIV, fig. 156. (p. 508.) 



Invert, ed. i, p. 253, fig. 171*, 1841 ; ed. ii, p. 283, fig. 545. Turbo obacurua Cou- 

 thouy, Boston Jonru. Nat. Hist., vol. ii, p. 100, Plate 3, fig. 2, 1838. 



Stonington, Connecticut, to Labrador. Eare and confined to the outer 

 waters south of Cape Cod ; off Martha s Vineyard, 20 to 25 fathoms. 

 Stonington, from haddock s stomach, (Linsley). Common in Massachu 

 setts Bay, Casco Bay, and in the Bay of Fundy, from extreme low- 

 water mark to 100 fathoms. East of Saint George s Bank, in 430 fath 

 oms, (S. I. Smith). 



Margarita ornata Dekay, N. Y. Mollusca, p. 107, Plate 6, fig. 104, 1843, 

 was described as occurring in the vicinity of New York, but I have not 

 met with it in Long Island Sound. 



DOCOGLOSSA. 



TESTUDINALIS Forbes and Hanley. Plate XXIV, figs. 159, 



(p. 307.) 



British Mollusca, vol. ii, p. 434, Plate 62, figs. 8, 9, and Plate A A, fig. 2; Car 

 penter, Report of British Association for 1856, pp. 219, 366, 1857 ; Dall (sub- 

 genus, Collisella Dall), American Journal of Couchology, vol. vi, p. 249,1871. 

 Lottia testudinalis Gould, Invert., ed. i, p. 153, fig. 12. Tectnra testudinalis 

 Gould, Invert., ed. ii, p. 267, fig. 529. Patella testudinalis Miiller, Prodromus 

 Zool. Danica, p. 227, 1776. 



Variety alveus. (fig. 159 a). Patella alveus Conrad, Journal Acad. Nat. Sciences, 

 Philadelphia, vol. vi, Plate 11, fig. 20, 1831. Lottia alveus Gould, Invert., ed. i, 

 p. 154, fig. 13. Tectura alveus Gould, Invert., ed. ii, p. 269, fig. 530. 



Long Island Sound to the Arctic Ocean ; circnmpolar. It extends 

 southward on the European coasts to Southern Sweden, England, and 

 Ireland ; in the Xorth Pacific, southward to Sitka and the Island of 

 Jesso, Japan. It is comparatively rare and local south of Cape Cod ; 

 at New Haven, very rare ; Watch Hill, Ehode Island ; Martha s Vine 

 yard, Cuttyhunk, and adjacent islands. Huntington and Greenport, 

 Long Island (S. Smith). Fossil in the Post-Pliocene of Labrador (Pack 

 ard) ; Greenland, Scandinavia, and Great Britain. 



POLYPLACOPHORA. 

 CflJETOPLEURA APICULATA Carpenter. Plate XXV, fig. 167. 



Chiton apiculatus Say, Amer. Conch., part vii, appendix, (?) 1834 ; Binney s Say, 

 p. 231 ; Gould, Invert., ed. i, p. 146, fig. 20 ; ed. ii, p. 258, fig. 522. Lepto- 

 chiton apiculatus, this Report, p. 399. 



Cape Cod to Eastern and Western Florida. Common in Vineyard 

 Sound and Buzzard s Bay, in 3 to 12 fathoms, shelly. Off New Lon 

 don, Connecticut (coll. T. M. Pruddeu). 



Dr. P. P. Carpenter informs me that this species belongs to the genus 

 Chcetopleura of Gray (non Adams). 



