52 THE NAUTILUS. 



Modiola (Lithodomas ?) wflata Wbitf. Vol. I, p. 197, pi. XXVI, 

 figs. 13, 14. 



Inoceramus sagensis Owen. Vol. I, p. 76, pis. XIV, XV, figs. 

 15, 1, 2. 



Inoceramus sagensis var. quadrans Whitf. Vol. I, p. 79, pi. XV, 

 fig. 16. ^ 



Cardiiim sp. 



DESCRIPTION OF A NEW FOSSIL CYPR^A. 



BY JOHN H. CAMPBELL. 



Cypraea Squyeri n. s. Plate II, figs. 1, 2. 



Shell ovate-oblong, attenuated at the extremities. Spire promi- 

 nent, showing four whorls ; outer lip thickened and having on the 

 inner edge thirteen or fourteen teeth. Anterior half of the aper- 

 ture wide, but contracted at the extremity, posterior end contracted 

 and projecting slightly beyond the spire. Under the magnifying 

 glass the shell shows strong revolving raised lines and strife. 

 Length 20 mm., width 11 mm., height 9 mm. 



A notice of the finding of this shell by Mr. Homer Squyer of 

 Mingusville, Mont., in the cretaceous formation (Fox Hills Group) 

 of eastern Montana, and the above proposed name, were published 

 in the Nautilus Vol. VI, p. 50. This shell resembles in outline 

 the recent Cypnea stolida, but its very prominent spire would sepa- 

 rate it from this group. Shell structure is wanting on most of its dor- 

 sal surface and the inner lip obscured by the hard matrix, which it 

 would be inadvisable to remove. In a recent letter from Mr. 

 Squyer he says " This summer while looking for fossils I found the 

 outer lip of the imperfect specimen, found at the time I obtained 

 the type. This specimen I have sent to the U. S. National 

 Museum. " The type has been placed in the collection of the 

 American Association of Concholoojists. 



PRELIMINARY NOTICE OF NEW SPECIES OF LAND-SHELLS FROM THE 

 GALAPAGOS ISLANDS, COLLECTED BY DR. G. BAUR. 



BY WM. H. DALL. 



Bulimulus (Naesiotus) duncanus n. s. 



Shell short, stout, inflated, thin, with wrinkled and slightly gran- 



