KELLIA. 83 



Kellia planulata. 



Fig. 33. 



Shell sub-oval, white, with a thin purplish epidermis; beaks prominent. 



Kellia rubra, Gould, Invert, of Mass. 1st ed. 60 (non aiict). 

 Kellia planulata, Stimpson, Shells uf New EiighuKl, 17. 



Shell minute, rather thick, sub-oval, very iiiequipartite, rather 

 compressed ; beaks rather prominent and in contact, having before 

 them a deeply excavated, elongated, smooth areola ; ends broadly 

 rounded, especially the posterior tip ; basal margin scarcely curved 

 and noarlv parallel with the superior maro:in ; surface 



' ^ ^ - Fig. 393. 



marked with the lines of growth, eroded at the l)caks, 

 and covered with a purplish or dirty-brown, rather 

 thick, epidermis. Within white and glossy ; two mus- 

 cular impressions, and the pallial line directly con- 

 necting them, without any sinus, quite perceptible. 

 Hinge consists, in the right valve, of a narrow, erect, central tooth, 

 and an imperfect one each side, slightly detached from the edge 

 of the valve ; in the left valve, of a well-defined tooth on each side, 

 barely separated fn^m the edge of the valve, leaving a triangular 

 vacancy between them to receive the central tooth of the opposite 

 valve. Length, one sixth of an inch ; height, one eighth of an 

 mch ; breadth, one sixteenth of an inch. 



Several specimens of this minute shell were found by Mr. C. F. 

 Shiverick in the harbor of New Bedford. I have also found it about 

 the roots of sea-weed, which seems to be its proper situation. Buz- 

 zard's Bay in three fathoms gravel (^Prime and Stiinpson) ; Boston 

 Harbor in five fathoms, shelly bottom ( Stimpsori) ; Sable Island 

 (W7///.S) ; Gull Island (Smith). 



Dr. Stimpson, by actual comparison Avith European specimens, 

 has decided this to be distinct from K. rubra^ where I formerly 

 placed it. It is more compressed in form, and the beaks are less 

 conspicuous. 



Kellia suborbicularis. 



Sliell rounded quadrate, white, inflated, fragile, translucent; two teeth in one 

 of the valves. 



Ml/a siihorbiai'arlx, Mont. Test. Brit. 39, 504, pi. 26, fig. 6; Linn. Trans, viii. 41. — 



DiLLw. Recent Shells, i. 5.5. 

 Tellina suhorhir.uJaris, Turt. Conch Diet. 179. 

 Petricola suborbicularis, Gkay, Ann. Philos. 1825. 



