PELECYPODA. 25 



Anodonta housatonica Linsley, Amer. Journ. Sci., 1845, ser. 1, 

 vol. 48, p. 277. 



Anodon implicata Gould, Inv. Mass., 1870, p. 180, fig. 481. 



Me. — Warren (Lermond); pond near Eastport (Mighels). 

 Mass. — Agawam River, East Wareham; Mystic Lake, xArling- 

 ton. 



R. I. — Cunliff Pond, Providence; Warwick; North Smithfield. 

 Conn. — Hartford. 



* Anodonta grandis benedictensis (Lea). 



Simpson, Descriptive Cat. Naiades, 1914, p. 423. 

 Symphynota benedictensis Lea, Trans. Amer. Phil. Soc, 1837^ 

 vol. .5, p. 104, pi. 16, fig. 48. " Lake Champlain." 



Vt. — Larrabee's Point; Chimney Point, Lake Champlain. 



Anodontoides ferussacianus (Lea). 



Simpson, Descriptive Cat. Naiades, 1914, p. 467. 

 Anodonta ferussaciana Lea, Trans. Amer. Phil. Soc, 1837, new 

 ser., vol. 5, p. 45, pi. 6, fig. 15. " Ohio River, near Cincinnati." 



Conn. — Whitney ville (Linsley). 



Symphynota compressa Lea. 



Lea, Trans. Amer. Phil. Soc, 1830, new ser., vol. 3, p. 450, pi. 12', 

 fig. 22. " Ohio * * * Norman's Kill, near Albany." Simpson, 

 Descriptive Cat. Naiades, 1914, p. 481. 



Vt. — Streams west of the Green Mountains (Adams). 



Symphynota compressa plebeia (C. B. Adams). 



Simpson, Descriptive Cat. Naiades, 1914, p. 483. 

 Unio covipressus var. pleheiiis C. B. Adams, Thompson's Hist. 

 Vt., 1842, pt. 1, p. 166. " MiDDLEBURY, [Vt.]" 



Vt. — ^Middlebury (Adams); creek near Mallett's Bay (Perkins). 

 Conn. — New Haven, canal. 



