MARYLAND GEOLOGICAL SURVEY 179 



cene is not known, but is probably general along the middle and southern 

 border. The species ranges in the Eecent from Cape Cod to Florida. 



Length, 6 mm.; width, 2 mm. 



Occurrence. — Talbot Formation. Wailes Bluff near Cornfield Har- 

 bor, St. Mary's County; Federalsburg, Caroline County. 

 ' Collections. — Maryland Geological Survey, Johns Hopkins University, 

 and U. S. National Museum. 



Superfamily RACHIGLOSSA. 



Family FASCIOLARIDAE. 



Genus FULGUR Montfort. 



Fulgur carica (Gmelin) 



Plates XLIII, XLIV, XLV. 



Murex carica Gmelin, 1792, Syst. Nat, p. 3545. 



Murex carica Conrad, 1834, App. Morton's Synopsis, p. 8. 



Busycon carica Holmes, 1859, Post-PL Fos. S. C., p. 65, pi. xi, fig. 1. 



Fulgur carica Dall, 1889, Bull. U. S. Nat. Mus., No. 37, p. 112, pi. lxxiv, fig. 1. 



Fulgur carica Dall, 1890, Trans. Wagner Free Inst. Sci., vol. iii, pt. 1, p. 117. 



Description. — " M. testa patulo-caudata transversim striata ; spirse 

 prominulae anfractibus basi spinis coronatus." Gmelin, 1792. 



This species is the largest of all the gastropods in the Maryland Pleis- 

 tocene. Its massive spines and thick shell are very characteristic and al- 

 though not as common as some of the other species it is by no means a 

 rare form. It is evidently a lineal descendant of F. fusiforme of the 

 late Miocene which in turn has F. spiniger of the early Miocene as its 

 ancestor. 



This species is most common in the Pleistocene and Eecent, but has 

 also been found in the Pliocene of the Carolinas. In the Pleistocene it 

 ranges from New Jersey to South Carolina and in the Eecent from Cape 

 Cod to the West Indies. 



Length up to 223 mm. ; width up to 120 mm. 



Occurrence. — Talbot Formation. Wailes Bluff near Cornfield Har- 

 bor, St. Mary's County. 



Collections. — Maryland Geological Survey, Johns Hopkins University, 

 and U. S. National Museum. 



