70 MOLLUSCA FROM THE GREAT OOLITE. 
tudinalibus decussentibus et varicibus irregularibus angulatis, ornatis ; umbilico contracto, 
basi lata, tenuissimé cancellato. 
Shell conical, depressed; whorls (4) angulated, and encircled with closely-arranged 
lines, longitudinally crossed by others, and equally densely arranged; varices elevated, 
longitudinal, angulated in their middle part, and placed at irregular distances; the um- 
bilicus is contracted ; the base is wide, slightly convex, and has a finely-cancellated surface. 
Locality. t occurs in the planking of Minchinhampton Common, very rarely. 
Soxtarium piscuLum. Plate IX, figs. 25, 25a, 6. 
S. Testd parvd, superne discoided, inferné concava, lateribus angustatis, planis ; spird 
vie elatd; anfractibus 3, marginibus angulatis et nodulosis, nodulis crebris, depressis* 
umbilico magno, margine noduloso. 
Shell small, discoidal above, concave beneath, the sides narrow and flattened ; the spire, 
scarcely elevated, consists of 3 whorls, their margins angulated and nodulated, the nodules 
closely arranged and depressed ; the umbilicus is large and deep, its margin is nodulated ; 
the flattened sides of the last whorl are finely striated transversely. 
The extreme flatness of the upper surface, the generally depressed form, and angular 
outer margin, distinguish it from contemporaneous species. 
Locality. tis rare, and occurs in the planking at Minchinhampton, and in the white 
stone of Bussage and Eastcombs. 
Detpuinuna, Lam. 
Shell turbinated, thick, rugose; whorls few, convex or angular; aperture orbicular, 
entire; peritreme continuous, thickened ; umbilicus conspicuous and denticulated. 
DELPHINULA CORONATA, Sow. sp. Plate IX, fig. 26. 
EvompHatus coronatus, Sow. 1824. Min. Con., t. 450, fig. 3. 
— Brown. Ilust. Foss. Conch., p. 82, t. 43, figs. 20—22. 
DELPHINULA CoRoNATA, Flem. 1827. Brit. Anim., p. 312. 
= — Bronn. 1848. Index Palzont., p. 406. 
? DELPHINULA STELLATA, Buvignier. Mém. Soc. Philom. Verdun, 2. pl. 5. figs. 35, 36. 
SoLartum coronatuM, D’Orb. Prod. Paléont., p. 300. 
D. Testa discoided, parva, superne pland, angulatd et spinigerd ; spinis latis, acutis et 
prominentibus ; basi concavd. 
Shell discoidal above, flattened, angular, and spined; spines broad, pointed, placed at 
the angle of the last volution ; base concave. 
