INSTITUTE OF SCIENCE, PHILADELPHIA. 35I 



Crucibulum grande Say. 



Calyptrcsa grandis Say, Journ. Acad. Nat. Sci. Phila. iv. p. 130, pi. 7, fig. 6, 1824. 

 Crucibulum inerme? Nelson, Trans. Conn. Acad. ii. p. 5, 1870. 



? Miocene of Maryland, Say ; Chesapeake Miocene of tlie James River, 

 Va., near Grove's Wharf, Burns ; Surrey Co., Va., Conrad. 



This splendid species almost frees its cup, but not quite ; so that it is 

 placed in this section. C. iJierme Nelson has not been figured or fully de- 

 scribed, but like the present species is smooth externally and has the cup 

 attached to the wall of the shell ; it is from the later (Pliocene ?) Tertiaries of 

 Peru. It is probable that the type of C. grande really came from Virginia and 

 not Maryland. 



Crucibulum multilineatum Conrad. 



Dispotcea muUilineata Conr., Am. Journ. Sci. xli. p. 346, pi. 2, fig. 8, Oct., 1841 ; Medial 



Tert., p. 80. 

 Crwcibulum mullilineata Tuomey and Holmes, Pleioc. Fos. S. Car., p. 107, pi. 25, fig. 7, 



1857- 



Newer Chesapeake Miocene of the vicinity of the Natural Well, Duplin 

 Co., N. C, Hodge and Burns. 



This species has the variable exterior of C. auricula, with an interior re- 

 sembling that of C. striatum Say, except that the cup is compressed and the 

 margin of its free portion bent inward in a way which I have never observed 

 in C. sti'iatum, which latter is also very uniform in its striation and shows no 

 tendency to tuberculation or spinosity. 



Orucibulum striatum Say. 



Calyptrcsa striata Say, Journ. Acad. Nat. Sci. Phila. v. p. 216, 1826. 



Crucibulum striatum Dall, Bull. U. S. Nat. Mus. No. 37, p. 152, No. 873, pi. 50, figs. 27, 28, 

 1889. 



Post-Pliocene of Sankoty Head, Mass., Verrill ; living from Nova Scotia 

 to the Florida Keys in from 3 to 190 fathoms, U. S. Fish Commission. 



The specimens from the Waccamaw beds (p. 213) were small and had the 

 cup broken away, so at first they were referred to this species ; but on further 

 study it seems certain that they should be placed with C. atiricula. The 

 present species is not known as a fossil prior to the Pleistocene. 



The only other species of Crucibulum from our area which I have found 

 are C. piliferum and C. subsutum Guppy, from the Pliocene of Trinidad. The 

 first species is not figured ; it is perhaps a variety of C. auricula spinosum, 

 while the second appears to be a Dispotcea not unlike Conrad's multilineatum. 



