INVERTEBEATE ANIMALS OF VINEYARD SOUND, ETC. 661 



RHIPIDOGLOSSA. 



Margarita OBSCURA Gould. Plate XXIV, fig. 15G. (p. oOS.) 



luvert., ed. i, j). 253, fig. ITl'^, 1341 ; ed. ii, p. "283, fig. 545. Turho ohscarm Con- 

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



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

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

 Stoningtou, from haddock's stomach, (Linsley). Common in Massachu- 

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

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

 oms, (S. I. Smith). 



Margarifa ornata Dekay, X. Y. Molliisca, p. 107, Plate 6, fig. 104, 1843, 

 was described as occurring in the vicinity of Xew York, bat I have not 

 met with it in Long Island Sound. 



DOCOGLOSSA. 



ACM.EA TESTUDiNALis Forbes and Hanley. Plate XXIV, figs. 159, 

 159a. (p. 307.) 



British Mollusca, vol. ii, p. 4.34, 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, ColliseUa Dall), American Journal of Couchology, vol. vi, p. 249,1871. 

 Lottia testiidinaUs Gould, Invert., ed. i, p. 153, fig. 12. Teotiira testudinaUs 

 Gould, Invert., ed. ii, p. 267, fig. 529. ratelhi testudinaUs Miiller, Prodromus 

 Zool. Danica, p. 227, 1773. 



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

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

 p. 154, fig. 13. Tectura a/(r((s Gould, Invert., ed. ii, p. 2G9, 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 5 

 at Xew Haven, very rare ; Watch Hill, Ehode Island ; Martha's Vine- 

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

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

 ard) ; Greeuland, Scandinavia, aiul Great Britain. ^ 



POLYPLACOPHORA. 



Cn.ETOPLEURA APICULATA Carpenter. Plate XXV, fig. 1G7. 



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 apicnlatns, this Report, \). 399. 



Cape Cod to Eastern and Western Florida. Common in Vineyard 

 Sound and Buzzard's Bay, in 3 to 12 fathoms, shelly. Off Xew Lon- 

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



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

 CJuctopleura of Gray {non Adams). 



