HAMINEA. 357 



This form is closely allied to H. elecjans Gray, but is smaller, 

 more polished and shining, and with the spiral striation far weaker. 



H. SOLITARIA Say. PI. 28, fig. 44 ; pi. 41, fig. 32. 



Shell thin, subcylindrical, with gently convex sides, truncate ver- 

 tex and rounded base ; color horny or light brown. Surface shin- 

 ing, having irregular growth wrinkles and (under a lens) fine, 

 deeply impressed spiral grooves, much narrower than their intervals, 

 sometimes with smaller ones intercalated. Vertex white, somewhat 

 impressed in the middle, subperforate. Lip arising to the right of 

 the center, slightly thickened ; outer lip gently arched forward. 

 Columella thin, concave. Alt. 10, diam. 6} mill. 



Massachusetts Bay to South Carolina. 



Bulla solitaria SAY, Journ. Acad. Nat. Sci., Phila., ii, p. 245, 

 1822. Complete writings of Thomas Say, W. G. B. edit., p. 84. 

 GOULD, Invert. Mass. (edit. W. G. B.) p. 222, f. 513. DALL, Cat. 

 Mar. Moll. 8. E. U. S., p. 88. Bulla insculpta TOTTEN, Journ. of 

 Sci., xxviii, p. 350, f. 4,. GLD., Inv. Mass., f. 92. AD., Thes. 

 f. 84. Sows., Conch. Icon., f. 1. Haminea novce-eboraci SOWB., C. 

 Icon., f. 6, 1868. 



This species has the spiral grooves unusually well developed. 

 This, with the cylindric-oval form is the main distinctive character. 

 The species occurs sparingly along the whole Atlantic seaboard. It 

 has also been reported from high northern latitudes. See K. Svensk. 

 Akad. Handl., 1878, p. 72, and Vega Exp., 370. 



H. SUCCINEA Conrad. PI. 48, fig. 18. 



Shell fragile, horny or whitish, cylindrical, somewhat wider at 

 base ; vertex truncated, narrowly and deeply impressed, minutely 

 perforated, the lip inserted on right side of perforation. Surface 

 densely evenly and deeply striated spirally throughout, the stria? 

 slightly wavy, aperture long, its upper five-eighths narrow and 

 parallel sided, lower part expanded ; columella very concave, folded 

 above, the lip reflexed and closely appressed in the umbilical region. 



Alt. 10, diam 5j mill. 



Indian River to West Coast of Florida. 



Bulla succinea CONR., Proc. Acad. Nat. Sci. Phila. iii, p. 26, pi. 

 1, f. 5, 1846. AD. Thes. p. 584, pi. 124, f. 106. H. succinea SOWB., 

 Conch. Icon. f. 25. DALL, Blake Gastr. p. 57 ; Proc. U. S. Nat. 

 Mus. 1883, p. 324. 

 24 



