INSTITUTE OF SCIENCE, PHILADELPHIA." 329 



Solarium granulatum Lamarck. 



5". granulatu7ii'Lzm., An. s. Vert. vii. p. 3, 1822; Encyc. Method., pi. 446, fig. 5 a-b, 1792. 



Not Solarium granulatum Lea, Contr. Geol., p. 122, pi. 4, fig. iii, = Solariella sp. 

 5". quadriseriatum Sowerby, Quart. Journ. Geol. Soc. vi. p. 51, pi. 10, fig. 8, 1850. 

 Architectonica perspectiva Tuomey and Holmes, Pleioc. Fos. S. Car., p. 120, pi. 26, fig. 6. 



1S57 ; not of Linn^ or Lamarck. 

 Solarium se:3rlineare 'HeXson, Trans. Conn. Acad. ii. p. 11, pi. vi. fig. 11, 1870 ; Pliocene ? 



Peru. 



Older Miocene of the Chipola beds, Florida, Burns; of Santo Domingo, 

 Sowerby ; Chesapeake Miocene of Duplin Co., N. C, Burns; newer Miocene 

 of the Cape Fear River, N. C, Johnson ; and of South Carolina at Darlington, 

 Holmes; Pliocene of Costa Rica, Gabb; Post- Pliocene of South Carolina at 

 Simmons's Bluff, Burns ; living off the costst of the United States from Cape 

 Hatteras to the West Indies and Texas, in rather deep water. 



The North Carolina fossil exactly resembles the recent shell unless the 

 granulations are slightly more prominent in the former, a character which is 

 not constant within the species. Those from Chipola are all small specimens, 

 but agree perfectly with the younger graimlatum except in having the pe- 

 riphery and basal ribs conspicuously beaded. They may form a variety 

 chipolanum. 



Solarium nuperum Conrad. 



Solarium nuperitm Conr., Journ. Acad. Nat. Sci. Phila. vii. p. 141, 1834. Suffolk, Va , 



Miocene. 

 Architectonica nuperum Conr., Am. Journ. Conch, iii. p. 260, pi. 19, fig. 8, 1867. 



Older Miocene of the Chipola beds, Calhoun Co., Florida, Burns ; Chesa- 

 peake Miocene of Yorktown, Va., Harris. 



This very well marked species is rather widely distributed, and is the pre- 

 cursor of the Pliocene and recent deep-water S. bisulcatum Orb. (5. boreale 

 Verrill)of our Southeastern and the Antillean coasts. The young are slightly 

 carinated, a character which with greater maturity is effaced. 



Very close to this species by the figure and description is the so-called 

 6". Hargeri Meyer, a name applied to some minute very young specimens of 

 this genus (Bull. Geol. Surv. Ala. i. p. 67, pi. 2, figs. 23, 23 a-b, i886) from the 

 Red Bluff Eocene. A specimen received by the National Museum and named 

 by the author is a very young specimen of 5. triliratum Conrad, but the 

 original type of Meyer in the Aldrich collection is without doubt, as De Gre- 

 gorio had already surmised, a very young specimen of S. elaboratum Conrad 



It is rather dangerous to devote time to the description of minute frag- 

 ments, tips of shells, and specimens in their larval condition or near it, 

 unless one is familiar with the younger stages of the forms already known. 

 Dr. Meyer would have less to regret in the matter of synonyms if he had 

 familiarized himself more thorciighl} with the mature forms before describing 

 the minutiae which are largely made up of their early stages. 



