go TRANSACTIONS OF THE WAGNER FREE 



This species was found by the U. S. Geological Survey in the Mid-Eocene 

 of the Wahtubbee Hills, four and a half miles west of Enterprise, Missis- 

 sippi, and by Mr. Joseph Willcox in the limestone quarry of Mr. Richards 

 at Ocala, Florida, associated with Niivumilitcs Willcoxii Heilpr. and other 

 Upper Eocene fossils. 



Voluta? sp. indet. 

 Plate 6, figure 5 a. 



Four and a half miles S. W. from Enterprise, Miss. 



This tip, which is all we have of the species, is figured to show an Eocene 

 example of the bulbous nucleus. The sculpture of the succeeding shell, so 

 far as it remains, is like that of Volutilithes, but so is that of the early whorls 

 of most sections of the Volutidce of the earlier Tertiaries. If it is the tip of 

 a Lyria, the species has a more swollen nucleus than any Lyria I have been 

 able to examine. The pillar has a single plait and slight traces of a second 

 one. The age of the beds is too great for a typical VobUa, it cannot be a 

 Volutilithes, and altogether this fragment presents a pretty puzzle for some 

 future paleontologist to unravel. The length of the specimen is 10 mm. 



Genus PERPLIOARIA Dall. 



Shell ovate-fusiform, cancellated ; nucleus smooth, involute, small ; outer 

 lip thickened ; pillar thin, twisted, with a single high, sharp plait parallel with 

 it throughout its length. 



This singular shell has a small, smooth nucleus, with the tip infolded. Its 

 general aspect would recall DapJinella, having much the same cancellated sur- 

 face and obliquely coiled whorls. There is no sutural sinus, and the pillar is 

 unlike that of any shell known to me. The unfortunate fact that the unique 

 specimen is defective anteriorly prevents any confidence in one's opinion of 

 its relations. They may be with the present family, but I incline rather to the 

 supposition that the shell is related to Fasciolaria or Ptychatractiis. The sur- 

 face, however, recalls Vobttocorbis more emphatically than any other form, 

 unless it be VolutomorpJia. I leave the genus between the volutes and Fascio- 

 laria pending further information. 



Perplicaria perplexa n. s. 

 Plate 3, figure i. 

 Shell small, five-whorled ; nucleus smooth, of a whorl and a half, rapidly 

 increasing, the tip involute ; sculpture cancellate, composed of numerous 

 strong, even, transverse costae, with narrower interspaces crossed by (on the 

 whorl before the last) about seven strong and an equal number of finer inter- 

 calary threads which descend into the interspaces and override the costse with- 

 out nodulation at the intersections; the base has similar sculpture, but the 

 costae become obsolete as they advance toward the canal ; the suture is dis- 

 tinct, but not channelled; there is no presutural band or sinus; the aperture is 



