XXVL 
Umbilical IS. Umbilical. 
Tab. III. fig. 4. 4. 
XXVI. 
PL HI. fig. 4. 4« 
Crochus flanior umhiluatus,^ widatim ex fufcv perbelle radiatus. Umbîlkaïîs, Tab, j. 
fig. 4. 4. 
‘Trochus planior undatim ex rubro late radiatus. — Lift. H. Conch, tab. 641. fig. 32. 
^he umbilicated top Jhell — Dale Harw, p. 381. No. 4. 
'Trochiis iimbilicaris. UmbilicaL — Penn. Brit. Zool. No, io6, tab. 80. fig, 106. 
Trocho cochlea undata & umbllicata plana. — Klein Oftrac. p. 42. § 1 1 9. No. i. 
Cochlea marina terrejlriformis, umbilicatay ftriata^ aliquantulum deprejjd^ undatim ex rubro 
id fufco radiata. — Gualt. I. Conch, tab. 64. fig. C. 
CinerariuS: ‘ïrochus tefta oblique umbilicata^ 
p, 1 229. No. 59Q, 
The Jhell is thick and ftrong, fize of a 
fmall grape, no ways pyramidal, but 
fiattijhi the body being only fomewhat 
convex, and not lengthened. 
The baje is fet with fine diftant circular 
ftriæ. The mouth round and capacious j 
its infide, except a few flight ftriæ cor- 
refpondent to fome on the outfide, is 
fmooth and pearly -, the outer lip even and 
fliarp i the inner or pillar lip thick and 
oblique, and from the top of it arifes a 
pretty large oblique white cavity that leads 
to the umbilicus^ which runs deep, and is 
capable .of admitting a common pin’s 
head. 
The body and turban have five whirls, 
not produced or lengthened, but only juft 
rifing obcufe on one another, fo as to form 
a fmall convexity. They have the fame 
.circular ftriæ as on the bafe, and are only 
feparated from one another by a furrow. 
The fliell is whitijh, or fullied with 
;aflren, very beautifully marked with 
. purplifli 
ovata, anfraSibus rotundatis,’—\dm. S. N^ 
La coquille eft epaifle & forte, de la 
grandeur d’un petit raifin, en aucune ma- 
niéré pyramidale, mais quafi applatie, le 
corps étant feulement quelque chofe con- 
vexe & point allongé. 
La bafe eft a ftries fines circulaires et 
diftantes. Le bouche ronde & ample ; 
le dedans, excepté quelques ftries legeres 
correfpondentes a celles de la robe, uni 
& nacré -, la levre extérieure unie & aigue ; 
Y intérieure, ou celle de la columelle, epailTe 
& oblique, &de fon haut s’eleve une alTes 
grande cavité, oblique & blanche, qui 
tend a un uw.bilic, profond, & capable 
d’admettre la tété d’une epingle com- 
mune. 
Le corps & la clavicule ont cincq orbes, 
non allongés, mais feulement couchés 
obtus, l’un fur l’autre, ainfi que de former 
une petite convexité ; ils ont des ftries 
circulaires de même que la bafe, & font 
feulement feparés l’un de l’autre par un 
fillon. 
La coquille eft blanchâtre, ou ob- 
feurie de cendre^ élégamment marquée 
avec 
