[677] INVERTEBRATE ANIMALS OF VINEYARD SOUND, ETC. 

 M VCOMA SABULOSA Morch. 



(Mftconxi) wihulofta Morch, in X;iiurh. IJidrjig til Mi^Ur. ;if (iioul.incl, p 

 90, 1857. Tallinn whulosa Spongier, Skrivt. Nut., vol. iv, part 2, 1798. '/>//;//' 

 l'n.,-iin<i (Jray, /on]. Heechey's Voyage, p. 154, Plato 44, li-. I. 1839, '/;//;//" 

 sordidd Couthouy, Boston Jour. Nat. Hist., vol.ii, p. 59, Plato :'., lig. 11,1 

 Sanguinotoria xonllda Gould, Invert., ed. i, p. 67, 1841. Tcllimi lain Lovrn, 

 Ofvers. af Kongl. Vet.-Akad., Forhand., vol. xi, p. 195, 1846 (not Tellhui l<i/a 

 Gmeliu, 1790, which is a Thracia, t. Morch). TelUna calcarca Lyell, 1'liil. 

 Trans., 1836 (not Chemnitz, 1782 = a Mactra, t. Morch). Macoma prorima 

 Gould, ed. ii, p. 95, fig. 401; thisRsport, p. 503. Maconm calcarca .\<l;im> 

 Dawson, op. cit., p. 7:>. 



Connecticut to the Arctic Ocean ; northern coasts of Europe; North 

 Pacific ; south on the coast of Asia to Hakodadi, Japan ; and, perhaps 

 (as M. expansa, a doubtful variety), on the west coast of America south 

 to Puget Sound. Off Block Island, in 29 fathoms, rare ; Casco Bay, 3 

 to 60 fathoms, not uncommon; Quahog Bay, Maine, 3 to 5 fathoms, soft 

 inud, large and abundant ; Bay of Fundy, 4 to 80 fathoms. Stonington 

 and Stratford, Connecticut (Linsley) ; Saint George's Bank (S. I. 

 Smith). Fossil in the Post-Pliocene of Maine, New Brunswick, Canada, 

 Labrador, Scandinavia, and Great Britain. 



The Tellina tenera Leach, 1818 (non Say), has been regarded as a 

 synonym of this species by most writers ; Morch considers it identical 

 with M. fragilis. 



ANGULUS TENER. Plate XXYI, fig. 180 5 Plate XXX, fig. 223. (p. 358.) 



Tellina (Angulus} tenera H. and A. Adams, Genera, vol. ii, p. 398, 1858. Angu- 

 lus tener Verrill, Amer. Jour. Science, vol. iii, p. 290, Plate 6, figs. 1, la, 

 1872. Tellina tenera Say, Jour. Acad. Nat. Sci., Philad., vol. ii, p. 303, 1822 ; 

 Hanley, Recent Shells, p. 65, Plate 9, fig. 38 ; Gould, Invert., ed. i, p. 68, fig. 44 ; 

 ed.ii, p. 97, fig. 403. 



Florida to Gulf of Saint Lawrence. Common on the coast of New 

 Jersey, Long Island, Long Island Sound, Buzzard's Bay, Vineyard Sound, 

 Massachusetts Bay; less common in Casco Bay and Bay of Fnndy. 

 Gaspe, Canada (Dawson). Fort Macou, North Carolina (Coues). A 

 closely-allied form (A declivis = Tellina declims Conrad, Journ. Acad. 

 N. Sc., Phil., vol. vii, p. 131) occurs in the Miocene of Virginia. 



ANGULUS TENELLUS Verrill. Plate XXX, fig. 224. 



Angnlus modestns Verrill, Amer. Jour. Science, vol. iii, pp. 210, 285, Plate 

 6, figs. 2, 2a, 1872 ; this Report, p. 418, (wow Carpenter, 1864). 



Shell smooth, shining, more or less iridescent, with very fine concen- 

 tric strife. Form similar to that of A. tener, but more oblong, and with 

 the anterior dorsal margin nearly straight, or even slightly concave ; 

 the beaks are at about the posterior third, and scarcely prominent ; the 

 posterior end slopes rapidly, and is snbtruncate at the end; the ven- 

 tral margin is but slightly convex in the middle, and sub-parallel with 

 the dorsal margin. The shell is often a little thickened, and firmer than 

 in A. tener, but is sometimes as thin. Color, pink, light straw-color, or 



