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and the consequent direction and shape of the aperture. 

 It is more of the shape of C. bulbus than of any other spe- 

 cies I know. It is, however, probably a y oung specimen. 



Crucibulum piliferum n. sp. 



Shell covered with numerous erect tubular spines which 

 are small towards the apex, larger towards the base ; apex 

 small smooth, spirally recurved. 



Pliocene, Matura. Given as C. tubifer in my previous 

 list. It may be a variety of the next species, but its plicae 

 are smaller, whilst the spines furnish an easily-recognized 

 character. 



Crucibulum subsutunt n. sp. 



Strongly striate, rugose, somewhat irregularly oval ; stria- 

 tions with a tendency to run in pairs. 



Pliocene, Matura. Allied to C. striatum Say, under which 

 name it appears in my paper on the Matura beds. 



Trochus decipiens n. sp. 



Topshaped, imperforate, ornamented by many spiral lines 

 of moniliform granules ; whorls rather concave above, and 

 bearing a rather broad angular keel on their lower portion ; 

 base flattened, covered with lines of rather square granules, 

 aperture subquadrate, wider than high, broadly angulate 

 by the keel ; columella thickened, spreading into a callus 

 over the umbilicus. 



Var. laticarinatus. 



Keel broader and higher, whorls deeply concave above, 

 suture deeply impressed ; lines on the base squamosely 

 granular. 



Pliocene, Matura. As Trochus granulatus in my list of 

 1864. 



