s: 48 



A rare species, the young of which may be confounded with S. 

 canaliculatum, Lam. occurring in the same locality, but differs in 

 wanting the channel above, &c. The latter species was inadvert- 

 ently omitted from the plate. 



SOLARIUM EXACUUM. Tab. 17, fig. 5. 



Discoid, with smooth, regular, revolving stria3 ; area of the su- 

 ture broadly furrowed.; periphery carinated ; margin rounded 

 above, striated ; base nearly flat, with a slight submarginal furrow, 

 obscure revolving stria3, and transverse wrinkles ; margin of the 

 umbilicus carinated. 



Stjn. DELPHINULA PLANA, Lea, Con. p. 117, pi. 4, /. 104. 



Locality. Claiborne, Alab. 



This elegant species resembles a Valvata with a depressed 

 spire. Rare. No. 4, first ed. p. 44. 



SOLARIUM STALAGMIUM, Tab. 17, fig. 6. 



Discoidal, with two prominent crenulated stria-, and one or two 

 intermediate obscure lines ; area of the suture broadly furrowed ; 

 periphery rounded, with regular revolving lines ; base convex, 

 with obsolete revolving lines, and distinct lines diverging from 

 margin of the umbilicus ; whorls within the umbilicus bicarinaie, 

 transversely striated ; aperture nearly orbicular. 



Syn. S. ELEGANS, Lea, Con. p. 121, pi. 4, /. 109. 



Locality. Claiborne, Alab. 



This is a common species, and the most beautiful fossil at Clai- 

 borne. No. 4, first ed. p. 44. 



SOLARIUM FUNGINUM. Tab. 17, fig. 7. 



Discoidal; slightly convex; whorls minutely plicated at the su- 

 ture, which is profound ; periphery with a crenulated carina ; base 

 flat, slightly grooved near the margin ; short impressed lines radi- 

 ating from the umbilicus, interrupted by an impressed submarginal 

 line. 



[104] 



