GASTEROPODA. 53 



1 . Pleurotoma iNTORTA. Broc. Tab. VI, fig. 4, a, b. 



MuREX INTOKTUS. Broc. Coq. foss. Subapenn. p. 42", t. 8, fig. 1", 1814. 

 Pleurotoma intoeta. Grat. Tab. Coq. foss. Env. de Dax, p. 323, 1838. 



— 5. Wood. Catalogue 1842. 



— Morris. Catal. of Brit. Foss. p. 157, 1843. 



— Nyst. Coq. foss. de Belg. p. 509, pi. 41, fig. 2, 1844. 



PL Testa elonr/atd, turritd, suhfusiformi ; lomjitudinuliter cosfatd; trmisversim striata 

 vel sulcatd; anfradibus siiperne excavatis ; carind nodosd; apertmd ovato-angustd ; hihro 

 inferne incra.^sato; canali brevissimd. 



Shell elongato-fusiform, turreted, longitudinally costated, and transversely sul- 

 cated ; volutions carinated and nodulous, concave on the upper part ; aperture elon- 

 gato-ovate, with a very short canal ; outer lip thickened below. 



Axis, 1\ inches. 



Locality. Red Crag, Butley and Sutton. 



I have but two specimens of this species, one of which was found by my friend 

 the late Rev. G. R. Leathes. Both specimens are somewhat rubbed, but sufficiently 

 perfect to be identified with Brocchi's figure and the Belgian shell. The apex is 

 much worn, so that the number of volutions cannot be correctly ascertained. The 

 sinus appears to have been a little below the angle or keel of the volution ; and 

 longitudinal lines, or lines of growth, are sUghtly visible. 



2. Pleurotoma turricula. Broc. Tab. VI, fig. 1, a — b. 



MuREX TURRICULA. Brocchi. p. 435, t. 9, fig. 20, 1SI5. 

 Pleueotoma tueeicula. Bronn. Ital. tert. geb. p. 46, 1831. 



— Philip. En. Moll. Sic. p. 199, 1836. ' 



— Ntjst. Coq. foss. de Belg. p. 520, pi. 41, fig. 5, 1844. 



PL Testd ehngato-fimformi ; anfractibus subcarinatis ; cingulis transversalibus tribus 

 remotis, ekvatis,obtusis, interdmn siihcreniilatis ; interstitiis transversim et longitudinaliter 

 tenuissime striatis ; aperturd oblongd, canali angustd rectiusculd. 



Shell elongato-fusiform, whorls subcarinated, ^-ith tliree remote, elevated, and 

 obtuse, transverse bands, which are sometimes subcrenulated ; finely striated trans- 

 versely ; lines of growth visible ; aperture elongated, canal produced. 



Axis, \\ inch. 



Locality. Red Crag, Sutton and Bawdsey. 



This is also a rare species. My cabinet contains about a dozen specimens, but 

 none in very good condition. I have in consequence been obliged to borrow parts of 

 the description of the shell from M. Nyst, the subcrenulations and fine striae not beino- 

 visible in my specimens, although, from their form and general character, I have no doubt 

 of the identity. The sinus is exactly at the angular part of the volution, above which 

 point it is rather concave, viith an elevated band near the suture. The longitudinal 



