GASTEROPODA. 49 



Cancellaria spinulosa? Broc. Supplement, Tab. VI, fig. 10. 



Voluta spinulosa, Broc. Conch, foss. sub-app., tab. iii, fig. 15. 



Locality. Cor. Crag, Sutton. 



The specimen figured was found by myself, and though not in perfect condition, 

 appears to belong to Brocchi's species spinulosa. It is, however, destitute of the spinous 

 volutions of that species as represented by Brocchi ; but these may have been rubbed off. 

 I have, however, considered it a variety under the name of subspinulosa. The form of my 

 shell much resembles an older tertiary genus called Mesostoma, by Deshayes, but that has 

 no fold upon the colummella ; still I think the two are nearly related. 



Aporrhais pespelicani, Linn. Crag Moll., vol. i, p. 25, Tab. II, fig. 4 a b. 



Localities. Cor. Crag., Ramsholt, Gedgrave, and Sutton. Red Crag, Sutton, 

 Newbourn, Brightvvell, Bawdsey. Fluvio-marine Crag, Thorpe in Suffolk (Bell). Post- 

 glacial, March Gravel, Nar Brick-earth (Rose) . 



The shell figured, as above referred to, was from the Red Crag at Brightwell, and it 

 corresponds precisely with the common form of the British shell of that name. This 

 so-called pespelicani has been lately found in considerable numbers in the Cor. Crag at 

 Gedgrave ; but the specimens there found differ somewhat in being more elongated and 

 more delicately marked than those from the Red Crag, representing an intermediate form 

 between it and A. Mc Andrea, Jeffreys {A. p>escarbonis, Forb and Hani). 



Our Coralline Crag variety is a slender shell, and the nodules smaller than upon the 

 common British form (in some specimens as many as twenty on the last volution), and in 

 that respect it closely approaches Chenopus Serresianus (Phil. " En. Moll. Sic./' vol. ii, 

 p. 185, Tab. XXVI, fig. b.), which probably is the same species. 



The Crag shell appears to me to be the connecting link between Ap. pespelicani, and 

 Rostellaria pescarbonis, Brongniart. Several of these finely marked specimens have 

 lately come into my possession, but after my plates were finished, or I would have had one 

 represented. 



I do not know the Aporrhais in any newer formation than the Red and Fluvio- 

 marine Crag of Suffolk, until we come to Post-glacial beds of the Nar Valley, where, 1 

 believe, it is not rare ; the specimens from there being of the large and coarse form, like 

 those of the Red Crag. A fragment has been found in the March Gravel by Mr, 

 Harmer, and Mr. Bell gives it from Thorpe, Suffolk. 

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