40 FOSSILS FROM SOUTHERN UXITED STATES— BALL. vol. xviii. 



are slightly smaller than the last two nuclear turns; sides flattish, 

 suture distinct; sutural baud conspicuous, set off by a deep sulcus; 

 the band is without nodules or marked sculpture, except on tlic last 

 whorl; the whorls are feebly transversely wrinkled by obsolete riblets, 

 which on tlie last whorl in the type specimen take a more definite 

 shape, but fade out on the periphery; spiral sculpture of obsolete 

 grooves on the anterior half of the whorl, two of which on the base 

 are more distinct than the others; aperture longer than wide; pillar 

 simple, smooth, twisted, little recurved; siphonal fasciole with a sharp 

 posterior keel. Longitude, 12; maximum diameter, 2.5 mm. 



Habit(iL—Chii)olA beds (2213). A single specimen (Xo. 113912) in 

 the National Museum. 



This little species is sufficiently unlike the others to require bu( lit- 

 tle in the way of comparison. A dwarf T. lanydoni var. 2)erpuHctata, 

 with the ribs almost wholly obsolete and the sulcus continuous instead 

 of broken into punctures, would be something like it. 



TEREBRA (ACUS) NEGLECTA, Emmons. 

 Tcrehra vajlecfn, Emmons, N. C. Geo). Snrv., p. 258, 1<^58. 



This unfigured species appears to have been lost sight of, though 

 apparently well characterized. At first sight it would recall T. dislo- 

 caia^ but on inspection it is found to differ materially. The sutural 

 band is marked in front by a constriction, not a sulcus, toward which 

 the transverse sculpture becomes obsolete, while the front part of each 

 whorl is somewhat SAVollen, with the ribs strongest on the periphery. 

 In many specimens the ribbing on the sutural band alternates with 

 that on the whovl. The posterior half of the whorl is smooth or only 

 faintly spirally striated; on the anterior half the spirals, though fine and 

 close, are well marked. The pillar is smooth and without plaits, while 

 in 1\ dlshx-afa it is biplicate. The shell reaches about 32 mm. in length 

 and 7.5 in maximum diameter, with 15 whorls. The taper of the tip of 

 the spire is more rapid than the rest, instead of being uniformly conical. 

 It was described by Emmons from the ^Miocene of North Carolina, but 

 was not found by Burns in tlie Duplin beds. We have it in the Na- 

 tional Museum (No, 114(51) from the Chesapeake Miocene (1521) of South 

 Carolina, on the autlioiity of Whitfield. 



TEREBRA (ACUS) DISLOCATA, Say; var. INDENTA, Conrad. 



Terebra dislocata (Say) Conrad, Sill. Am. Jouru. Sci. XLI, p. 343, 1841. 

 Terehra hulenUi, Coxrao, Proc. Acad. Nat. Sci. Phila., 1862, p. 565, 1863. 

 Terehra indentaia, Mkek, Miocene check list, p. 18, No. 603^ 1864. 



Hahitat. — Duplin beds at the Natural Well, Duplin County, North 

 Carolina. 



The species T. dislocata in the Miocene has some varieties which ^ire 

 not reproduced in the recent fauna, as well as some that are. Of the 

 former, T.hidcnta, Cour-M\{l7ideniata of Meek by a typographical error), 

 is the most marked. It differs from the typical T. dislocata by its feebler 

 and closer transverse sculpture, and its stronger, close-set, cord-like 



