ACTAON. 467 
Tornatellea, Conrad. There are three specimens in my Collection from the 
Parkinsoni-zone of Burton Bradstock, one from the same horizon at Grove, and 
two smaller specimens from the Parkinsoni Marl of Bradford Abbas. 
412. Acton (ToRNATELLHA) ooLiTicuUs, sp. nov. Plate XLII, fig. 11. 
Description : 
Height : ; 13 mm. 
Body-whorl to total height Ae . 68: 100. 
Spiral angle. : . Eeislts 
Shell oval, apex acute. Number of whorls six, sub-tumid, with the posterior 
edge more sloping than tabulate. The spiral striwe are close, deeply cut and 
punctate, the sloping shoulder of the whorls exhibiting a special form of grooving, 
whilst the spirals in the upper portion of the whorls are wider apart. Aperture 
sub-elongate, elliptical, with a very short columella; this has evidently been 
marked with oblique folds, but it is not easy to say whether two or three; 
indications of an anterior notch. 
Relations and Distribution.—This form obviously differs from Actexon pulchellus 
in its more slender shape, in the comparatively sloping posterior margin of the 
whorls, and especially in the general closeness of the spiral stri#. It is near to 
Tornatellea multistriata, Rigaux and Sauvage, and also resembles Tornatellea 
Brasili, Cossmann, which is described from the Bajocian of France. 
The finest specimens of Actzon ooliticus occur in the Concavus-bed at Bradford 
Abbas. Stoford and Horton Hill have also yielded specimens, which bear 
considerable resemblance to the Bradford Abbas forms. When the folds on the 
aperture have been effaced, it might be difficult to distinguish this species from 
Actxonina pulla, K. and D. There is a very slender variety with five whorls from 
the ‘* Base-bed,”’ Lincoln, ? a distinct species. 
413. Acrxon scuLprus, Lycett, 1850. Plate XLII, figs. 10 and 10a. 
1850. CERITELLA scuLpTa, Lycett. Ann. Mag. Nat. Hist., 2nd ser., vol. vi, 
p- 419. 
1853. —_ — — Proe. Cotteswold Nat. Club, vol. i, p. 80. 
The following is Lycett’s diagnosis :—* Small, turrited ; whorls few, long, 
nearly flat, each with three encircling striz, equidistant; the body-whorl has six 
striz besides numerous others closely arranged at the base.” 
