16 SECOND SUPPLEMENT TO THE CRAG MOLLUSCA. 



Waldringfield, that receptacle for so many derivatives ; and as this shell is very rare to 

 my researches, and the present specimen presents differences from the one previously 

 represented, I have had it figured as above. It is doubtless derivative. 



Ranella ? Anglica, A. Bell. 2nd Sup., Tab. Ill, fig. 3. 



Ranella Anglica. A. Bell. Ann. and Mag. Nat. Hist., May, 1871. 



Spec. Char. " Shell small ; whorls 3, 4 (apex wanting), convex, with coarse elevated 

 ridges on the bottom whorl, crossing the periodic growths (which are very distinct), and 

 extending to the mouth, becoming very marked at the base ; mouth angulated above, 

 outer lip spreading towards the base, where it is sharply angulated by one of the ridges ; 

 pillar reflected ; canal rather open ; umbilical chink small." — A. Bell. 



Length, ^ths of an inch. 



Locality. Red Crag, Waldringfield. 



The only specimen of this shell which has been obtained, so far as I know, is the 

 one now figured. It is from Dr. Reed's collection, and was described as above by Mr. 

 A. Bell. It is not in a perfect condition, and I am doubtful of the correctness of the 

 assignment, but have thought it best to have it figured, and give it under Mr. A. Bell's 

 name and description. It is no doubt derived from some antecedent formation, and 

 seems to me to resemble a good deal the imperfect specimen from the Cor. Crag, figured 

 by me in Tab. II of my first Suppt., under the name Murex corallinus. There are 

 some spiral strise or ridges on the base or lower part of the volution, but the specimen is 

 too much mutilated on the spire to show whether it was covered entirely with striae. 

 There are three or four distinct denticles on the inside of the outer lip, as in M. coral- 

 linus, and a few coarse ridges on the outside of this outer lip, as if the spire had also 

 been so covered. 



Pletjrotoma Morreni, Be KonnincJc. Tab. II, fig. 6 a, b. 



Plecrotoma Morreni, Be Ron. Desc. Coq. Foss. de Basele, p. 21, pi. i, fig. 3, 1837. 

 ,, ,, Nyst. Coq. Foss. de Belg., p. 510, pi. xl, fig. 6 a, b, 1843. 



,, intorta (?), Bellardi. Foss. del Piedm., p. 16, tav. i, fig. 13, 1847. 



r 



Axis, \\ inch. 



Locality. Red Crag, Waldringfield. 



The specimen as above represented is from the Cabinet of Mr. Canham, who 



