GO MOLLUSCA FROM THE GREAT OOLITE. 



T. Testa turbinalo-conicd, acuta, lineatd; basi granulatd cingulatd; anfractibus (6) 

 subteretibus bicarinaiis, carinis granulis erectis coronatis; interstitiis canaliculatis. 



Shell turbinated or conical ; apex acute, the base with a granular band encircling it ; 

 the whorls (0) are turreted, and have two encircling carinae, the carina? are elevated and 

 fringed with closely-arranged granules, the interstitial spaces are canaliculated. 



Locality. This elegant species occurs rarely in the planking of Minchinhampton 

 Common ; it is usually crushed or otherwise imperfect ; it occurs likewise in the Inferior 

 Oolite of Gloucestershire more frequently, and is usually better preserved. 



We have ventured to assign this shell to the species described by Goldfuss, although 

 its state of preservation does not show the longitudinal markings characteristic of that 

 species. 



Turbo obtusus, Sow. Plate XI, figs. 9, 9a. 



Turbo obtusus, Sow. 1827. Min. Con., t. 551, fig. 2. 



— — Brown. 1849. Must. Foss. Conch., p. 73, t. 38, figs. 41, 42. 



Turbo subobtusus, D'Orb. 1850. Prod. Paleont., p. 300. 



T. Testa parvd, conicd; spird obtusa; anfractibus (4) planatis, ultimo superne sub- 

 concavo, in/erne convexo, striis .crebris, subundatis, transversis cincto; aperturd ovatd; 

 umbilico nullo. 



Shell small, conical ; spire obtuse ; whorls 4, their sides flattened, the last whorl 

 slightly concave in the upper and convex in its lower part ; the whorls are encircled with 

 striae, closely arranged and slightly undulated ; aperture ovate ; no umbilicus. 



In this minute species, the junctions of the whorls are strongly marked ; the striae are 

 slightly punctated, giving to the spaces between them a rough or scabrous aspect ; the 

 striae, however, are but faintly impressed, and are scarcely visible upon some specimens ; 

 the substance of the shell is thick, its axial slightly exceeding its transverse diameter, or 

 being equal to about 2 lines. 



Locality. Minchinhampton Common and Bussage. At both places it is somewhat 

 rare, but occurs in more than one shelly bed. Ancliff, Wiltshire. 



Turbo Gomondei. Plate XI, fig. 5. 



T. Testa conoided, spird elatd, acuta j anfractibus (5) planatis et costatis; costis trans- 

 versis (4) dense nodulosis; aperturd ovatd, subdepressd, umbilico nullo. 



Shell conoidal, spire elevated, acute ; whorls (5) flattened and costated ; the costae 

 (4 in number) are transversal, and densely nodulated ; the aperture is ovate and somewhat 

 depressed ; and there is no umbilicus. 



The length of the aperture is scarcely equal to half the entire length of the shell, and 



