Perkins.] 152 [November 3. 



KELLIAD^. 

 Kellia Turton, 1822. 



Kellia planulata Stimpson, Shells of N. E., p. 17. Kellia 

 rubra Gould, Invert. Mass., p. 60, fig. 23; De Kay, Moll. N. Y., p. 

 232. 



Not common, occurs in accumulations of small shells on the shore. 



SOLENOMYADiE. 



Solenomya 1 Lamarck, 1818. 



Solenomya velum. Solemya velum Say, Am. Conch., p. 105, 

 1822; Gould, Invert. Mass., p. 35; De Kay, Moll. N. Y., p. 245, pi. 

 xxx, fig. 292. 



Common on the beach, though rarely living. It lives in sand at 

 and below low water mark. Animal white; mantle closed except at 

 the ends, widely open anteriorly for the foot, and posteriorly forming 

 a very short tube surrounded by globular papillae ; size of this open- 

 ing varies considerably at different times, and occasionally it is con- 

 tracted across the middle, making two apertures, which has probably 

 caused some writers to state that there existed two openings; gills 

 behind the foot, one on each side thick, narrow, the incurved ventral 

 edges meeting so as to form a cylindrical dark brown mass, which is 

 in strong contrast with the other parts, which are white ; foot long, 

 obliquely truncated at the end, which is broadly and deeply cleft, 

 fringed around the edge; around the posterior part of the pedal 

 opening the mantle has about fourteen short, round papillae, some of 

 which are colored and may serve as ocelli; epidermal fringe at- 

 tached to the mantle, and when the shell is closely shut folded inward. 



CYRENID^E. 



Sph^erium Scap., ] 777. 



Sphserium sulcatum Prime, Am. Corbie, p. 33, fig. 25. Cyclas 

 similis Say, Am. Conch., p. 54, 1816; Gould, Invert. Mass., p. 72, 

 fig. 53; De Kay, Moll. N. Y., p. 222, pi. xxv, fig. 264. 



Very abundant in streams. 



1 Often, but incorrectly, written Solemya. It comes from Solen and My-a. 



