WORMS. TESTACEA. 84. Patella. 585 
Umbellata, Shell entire, roundifh; diaphanous, depre(Ted, with yel- 
lowifh rays within: crown pale yellow: margin 
very acute. 
Da Cofla Conchol. tab. 1. fig. 5: t.5- f. Ss 
Muf. Vefs. tab. 6. fig. §- Favan.conch. 1. t. 3. He 
Chemn, conch. 10. rab. 169. fig. 1645, 1646. 
Davil. catal. raif. tab. 2. fig. A, : 
~ Inhabits the Indian Ocean: 4 inches 3 lines long. 
Sheil rough with raifed dots on the infide; the margin rarely 
denticulate. 
Pustulata, Shell thin; oval, depreffed, radiate; white dotted with red, 
within fmooth. bul. 
Helbling abb. Bobem. 4. tab. Y. f. 12. 
Inhabits Shell 6 lines long. 
Symmetrica Shell ovate, conic, folid, brown divided into partions by 
perpendicular» white lines, within fmooth, white: 
* margin cut archwife. ; 
Helbling abb. Bobem. 4. tab, 1. fg. 13; 14» 
Inhabits 6 lines long. ; : 
Shelé with perpendicular lines of different fizes: crow central: 
internal margin varied with alternate white and brown dots; 
Citrina. | Shell ovate, convex, with very fine decuffate ftriz, white 
with 2 broad yellow bands, within whitifh with a 
milk-white bottom: crown brownifh. 
Kammer conch. Rudolf. tab. 2. fiz. 6. 
Inhabits Shell folid, an inch and 10 lines long, 
Capensis, Shell oval with decuffate ftriz, the longitudinal ones alter- 
nately brown and white, within fomewhat perlaceous 
with a white bottom. | 
Argeny. conch. tab. 10. figs Ox 
Kemmer conch, Rudolf. tab. 2. fig. 1, 2. 
Inhabits the Cage of Good Hope: 1% inch long. 
Shell {mooth within; the brown itriz are broader, about 9--11, 
aud violet within, the white ones yellow within. 
Anamala. Shell coarfe, brown, orbicular, with a fubmarginal crown. 
Mull. Zool. Dan. 1. tab. 5. fig. V—7. 
Inhabits the deeps of the Noravay /z:, on rocks and dead tefta- 
ceous ftubftances; probably not of this Genus. 
Sell minute, rough with very fine raifed dots, (ometimes cinere- 
cus, beneath blue; ixbabitant confifting of 2 reddith tough 
twifted mafles fringed down the whole length, the fringes 
VOL. IV. — 4 E com- 
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