72 FAUNA OF THE CORNBRASH. 



The records of Nerinsea granulata are numerous, but there appears to be only 

 one specimen between them all. Dr. Lycett figured the single specimen in the 

 Scarborough Museum. Further remarks will be found under that heading. 



The record of N. good h alii is by Macalister as from some Jurassic bed at 

 Gayhurst, a locality not now marked as showing Cornbrash ; but as this is only ten 

 miles distant in the direction of the range of that rock from the section at Akely, 

 the name may probably indicate a fossil thence described here as N. hathonica. 



"Nerinsea granulata" (Phillips). 



1835. Terebra granulata, Phillips, Geol. Yorkshire, pi. vii, fig. 16. 



1854. Ceriihiwm granulatum , Morris, Catal. Brit. Foss., ed. 2, p. 240. 



1863. Nerinsea granulata, Lycett, Suppl. to Great Ool. Molhisea (Pal. Soc), p. 10, pi. xxxi, fig. 12. 



1875. — — Phillips, op. cit., 3rd edition, p. 258. 



Lycett's description is the only one yet given ; in some respects it does not 

 agree either with Phillips' figure or his own. 



" Shell elongated, turreted, volutions numerous (about 20) [only 8 shown], 

 narrow (so that their height is little more than half of their opposite diameters) 

 [drawn only a little less], flattened, but slightly contracted towards the base of each 

 volution and encircled with numerous (9 or 10) irregular, unequal, slightly 

 nodulous lines; the aperture is small, subquadrate, and oblique; the columellar 

 lip has a single strong plication." Sixteen volutions are preserved. This 

 specimen was discovered before the year 1835 (see headlines) ; since then it has 

 made no progress, except to reduce to half its size. One after another author has 

 had a guess at it. First it was a Terebra ; then under Morris in 1854 it became a 

 Cerithivm; and, finally, when half worn away, it changed to Nerinsea in 1863; but 

 no one has seen its interior structure, which should demonstrate whether it is a 

 Nerinsea at all. 



A second specimen is that in the Museum of Practical Geology, which has been 

 compared with N. granulata. It shows the same ornament as the type. The base 

 makes an angle of about 60° with the continuation of the surface, and shows six 

 spirals on it. The lines of growth are very fine and nearly vertical. 



Nerinsea bathonica, Rigaux and Sauvage. Plate VII, fig. 17. 



1868. Neriniea bathonica, Kigaux et Sauvage, Mem. Soc. Acad. Boulogne, vol. iii, p. 27, pi. iii, fig. 2. 



Type. — Length 120 mm., breadth of last whorl 30 mm., height of the same 

 21 mm. " Shell large, elongated, conical, not umbilicated, whorls concave ex- 



