104 TRANSACTIONS OF THE WAGNER FREE 



The dimensions of .specimens of the same length are as follows : 



F. distans ..... 

 F. rhoniboidea .... 



F. apicina ..... 

 F. nionocingidata .... 



The F. rhoniboidea is undoubtedly the progenitor of the race, including 

 probably F. tulipa, as well as F. distans of the recent fauna. In the Pliocene 

 we have F. tulipa, F. apicina, F. nionocingidata and possibly F. distans, though 

 I have seen no unmistakable distans of earlier than Post- Pliocene age, and 

 Tuomey and Holmes's figure 7 is not absolutely decisive. Besides this, I have 

 no doubt that the fossils supposed to be Pliocene by Tuomey and Holmes 

 were mixed with specimens really of Miocene age, but supposed to belong to 

 the same horizon as the others ; as in the case of Ecphora quadricostata. The 

 unconsolidated state of the later Tertiary beds of South Carolina makes it 

 easy to fall into such an error. From the above confusion Conrad was led to 

 an error of greater magnitude in the other direction, by which he referred the 

 whole of the Carolinian Pliocene to the Miocene age. 



Fasciolaria Sparrow^i Emmons. 

 F. Sparrowi Emmons, Geo!. Rep. N. Car., p. 253, fig. 115, 1858. 



Miocene marl of Bladen Co, North Carolina (Emmons); Lower Miocene 

 of Western Florida one mile west of the Chipola River, Calhoun Co. (Burns) ; 

 and of White Beach, Little Sarasota Bay, Southwest Florida (Dall). 



The Floridian specimens are fragments, but identified with confidence ; 

 though similar in a general way, this form seems sufficiently distinct from the 

 next species, which probably was its descendant. 



Fasciolaria scalarina Heilprin. 

 F. scalarina Hp., op. cit. p. 69, pi. i, fig. 2, 18S7. 



Caloosahatchie beds on the Caloosahatchie River and Shell Creek. 

 This splendid species seems to have no recent representative. It appears 

 to be sufficiently distinct from F. Spairoivi for the reasons given by Prof 

 Heilprin. 



Fasciolaria gigantea Kiener. 

 F. gigantea Kiener, Icon. Coq. Viv., p. 5, pi. 10, 11 ; Heilprin, op. cit. p. 70. 



Caloosahatchie beds on the Caloosahatchie River, Shell Creek and Alliga- 

 tor Creek, Florida, not rare ; Pliocene of South Carolina ; Post-Pliocene, and 

 recent on the whole coast of the United States south of Hatteras. 



The Pliocene form does not appear to differ from the recent shell and 

 passes through a similar series of nodulations and other variations in ornamen- 

 tation. The nucleus is almost identical with that of F. scalarina. 



