1869.] 131 [Perkins. 



Arion Ferussac, 1819. 



Arion hortensis (Fer.) De Kay, Moll. N. Y., p. 23; Binney, 

 Bost. Journ. Nat. Hist., Vol. iv, p. 10. Limax hortensis Lam., An. 

 sans Vert., Vol. vn, p. 719. 



JSTot common. 



auriculim:. 



Carychium Miill., 1774. 



Carychium exiguum Stimps., Check List; Binney, Shells of 

 N. A., pt. ii, p. 6, figs. 5-9 ; Morse, Am. Nat., Vol. I, p. 671, fig. 69. 

 Pupa exigua Say, Am. Conch., p. 26, 1822 ; Gould, Invert. Mass., 

 p. 191, fig. 122. 



Rare. 



Alexia Leach, 1847. 



Alexia myosotis Drap.; Binney, Shells of N. A., pt. n, p. 4, 

 figs. 2-4 ; Morse, Am. Nat., Vol. i, p. 671, fig. 70. Auricula dentic- 

 ulata Gould, Invert. Mass., p. 199, fig. 129; De Kay, Moll. N. Y., 

 p. 58, pi. v, fig. 91. Auricula personata Lam., An. sans Vert., Vol. 

 vin, p. 334. Voluta denticulata Montagu, Brit, Test. 



Very abundant on the stone foundations of the bridge over West 

 River, near West Haven, and on the piles. Animal white or dusky; 

 rostrum long, broad, bilobed before; tentacles short, broad at the 

 base, obtusely pointed, but I have seen none " bulbous at the tip " 

 (vide Binney, loc. cit., p. 5), wrinkled, edge undulated by the wrin- 

 kles, with a black line along the edge ; eyes on the inner bases ; foot 

 narrow, oblong, obtusely pointed behind, round before, margin un- 

 dulated. 



MEASUREMENTS. 



Length of shell 8.6 mill. Breadth- 3.8 mill. 



" foot 6 " " 2.2 " 



" tentacles 1.2 " " .4 " at base. 



Mklampus Montfort, 1810. 



Melampus bidentatus Say, Am. Conch., p. 84, 1822; Binney, 

 Shells of N. A., pt. n, p. 10, figs. 11, 12 ; Morse, Am. Nat., Vol. i, 

 p. 671, fig. 71. Melampus corneus Stimps., Shells of N. E., p. 51. 

 Melampus lineatus Say, Am. Conch., p. 85, 1822 (var.) Auricula 



