shell. Aperture two-thirds the length of the shell, 

 strictly ovate, one-third longer than broad; columella 

 arcuate, but not folded, a thin white callus of consider- 

 able extent covering it. 



Length, one-fourth of an inch ; greatest lateral diam- 

 eter, one-eighth ; least, one-tenth of an inch. 



GEOGRAPHICAL DISTRIBUTION. Found by Mr. Nut- 

 tall, in Oregon. 



REMARKS. Compared with 8. aurea it is much 

 smaller, and combines red in its coloration ; the aper- 

 ture is more rounded at base, so as to be more broadly 

 ovate ; the whorls are also more rounded. Grains of 

 sand adhere to its surface, much as in the young of 

 S. avara, but I can discover no epidermal hairs. [G.] 



7. SUCCINEA OVAL.IS, GOULD. 

 PLATE LXVII. a. FIGURE 3. 



S. testa oblongo-ovata, sub-conica, tenui, diaphana ; an- 

 fractibus ternis arctis, minutissime striatis, ultimo anfractu 

 elongate ; apertura conico-ovata, lata, ad anfractum ante- 

 riorem expansa. 



SYNONYMS AND REFERENCES. 



Sucdnea avails, GOULD, Invertebrata, p. 194, f. 125. 



ADAMS, Catalogue, p. 270. Shells of Vermont) p. 6. 

 MIGHELS, Loc. cit., p. 28. 

 SAGER, Loc. cit., p. 14. 



DESCRIPTION. 



ANIMAL. A little longer than the shell, whitish or 



