WHITE.] PALEONTOLOGY — CRETACEOUS FOSSILS. 317 



JEuUmeUa, and may possibly have to take the name JEuUmella funicida, 

 when its generic characters can be more clearly determined from the ex- 

 amination of good specimens. The best examples I have seen do not 

 show the extreme apex of the spire, or very clearly the form of the aper- 

 ture. So far as can be determined, however, its columella does not seem 

 to present the straightness seen in JEuUmella. I know of no closely 

 allied Cretaceous species. 



^^ Locality and position. — Cretaceous, at Coaville, Utah." 

 The examples described and illustrated by me {loc. cit.) were published 

 before I had seen either Mr. Meek's types or his drawings, having had 

 access only to his published description. Subsequent comparison raises 

 a doubt as to their specific identity, but they are evidently congeneric. 

 My examples were more robust than Mr. Meek's, with a wider apical 

 angle. It is possible that neither of these forms should be referred to 

 Uulimella, but they certainly agree more nearly with the characteristics 

 of that genus than with any other, so far as they are yet known. 



Genus FUSUS Lamarck. 



Fusus (I^EPTUXEA ? ) GABBi Meek. 



Plate 9, fig. 9 a. 



Fusus {Neptunea f ) gabhi Meek, 1873, An. Eep. U. S. Geol. Surr. Terr, for 1872, p. 504. 



"Shell rather small, fusiform; spire moderately prominent, conical; 

 volutions seven or eight, convex; last one somewhat ventricose in the 

 middle, and rather suddenly contracted below into the narrow, slightly 

 twisted, more or less bent, and apparently moderately produced canal; 

 suture well defined; aperture rhombic-subovate, and rather suddenly 

 naiTOwed into the canal below. Surface ornamented with equal, distinct, 

 regularly disposed varices or vertical folds, about eight of which may 

 be counted on the penultimate volution, and less on the body- whorl, 

 where some of them become obsolete; crossing these are also seen fine 

 revolving lines, and, a little below the suture, apparently a shallow 

 revolving fiirrow, that gives it a slightly banded appearance. 



"Length, including canal, about 0.87 inch; breadth, 0.40 inch; slopes 

 of spire straight, and diverging at an angle of about 50<^. 



"The specimens of this species contained in the collection are quite 

 imperfect, being mainly casts retaining more or less of the shell. From 

 such material it is, of course, impossible to determine with much confi- 

 dence the generic affinities of shells. I have, therefore, provisionally 

 referred it to the genus Fusus, putting in parenthesis the name Weptunea 

 with a mark of doubt, to indicate that I suspect it may belong to that 

 group, with the limits assigned it by some conchologists. It seems, 

 however, quite as probably to belong to Tritonidea, as understood by 

 some. 



'■'■Locality and position. — CoalviUe, Utah; from Cretaceous beds below 

 the lower heavy bed of coal mined at that place." 



Genus ADMETOPSIS Meek. 

 Admetopsis RHOMBorDES Meek. 



Plate 9, figs. 6 a and h. 



Admete f rhomboides Meek, 1873, An. Eep. U. S. Geol. Sur. Terr, for 1872, p. 501. 



"SheU rather smaU, rhombic-suboval, or short-fusiform, the length 

 being slightly more than twice the breadth at the widest part, which is 



