PATELLA. 



Plate XXVIII. 



Species 73. (Fig. a, b, c, Mus. Cuming.) 



Patella saccharina. Pat. testa ovatd, acute angulato- 

 convexa, crassiicscula, radiutim costatd, costis fortihus, 

 compressis, variis, jjlenimque septem majoribus, inter- 

 stitiis radiatim liratis ; alba, inter castas macuUs cur- 

 vis nigris plus minus dense tinctd, intus alba, nigro- 

 marginatd. 



The sacchakixe Limpet. Shell ovate, sharply angu- 

 larly convex, rather tliick, radiately ribbed, ribs 

 strong, compressed, various, generally seven principal 

 ones, interstices radiately ridged ; white, more or less 

 thickly painted between the ribs, with cui'ved black 

 blotches, interior white, black-edged. 



LiNN.EUS, Syst. Nat. (12th edit.) p. 1358. 

 Astrolepas saccharina, ArgenvUle. 

 Astrolepas tigerina, ]\Iartini. 



Hah. Philippine Islands ; Cuming. 



A solid strongly ribbed white shell, painted more or 

 less densely with very characteristic crescent-shaped black 

 blotches in the interstices. 



Species 73. (Mus. Cuming.) 



Patella Puegiensis. Pat. testd ovali, tenuiculd, semi- 

 pellucidd, subcompresso-elevatd, apice rotundato, antice 

 iaclinato, radiatim liratd, liris tenuibws, nmnerosis, 

 striis concentricis dense dectissatis ; virescente, ca.s- 

 taneo-fuscescente plus minus tinctd et maculatd, apice 

 ceneo, intus iridescente-aned, radiatim sulcata, sulcis 

 interdum partim obsoletis. 



The Puego Limpet. Shell oval, rather thin, semitrans- 

 parent, rather compressly raised, apex rounded, in- 



clined anteriorly, radiately ridged, ridges thin, nu- 

 merous, densely crossed with concentric stri;e ; green- 

 ish, more or less stained and blotched with chestnut- 

 brown, apex bronze, interior iridescent-bronze, radi- 

 ately grooved, grooves sometimes partially obsolete. 

 Hab. Tierra del Fuego. Falkland Islands. 



A delicate subpellucid bronzed species, elegantly many- 

 ridged, of a pale greenish texture, partially, and sometimes 

 almost entirely, stained and blotched mth reddish-chestnut. 



Species 74. (Mus. Cuming.) 



Patella makgabitaria. Pat. testd rotundato-ovatd, 

 suhaftcmatd, subacute erecte elevatd, antice inclinatd, 

 apice obtusd, radiatim costatd et liratd, costis rudibus, 

 tumidiusculis, nodosis, interstitiis muricatis ; costis 

 sordide albidis, interstitiis purpureo-nigris, muricibus 

 opaco-alhis, intus corned, vivide purpureo-radiatd. 



The pearl-set Limpet. Shell rotundately ovate, in- 

 teriorly a little attenuated, rather sharply erectly 

 raised, inclined anteriorly, obtuse at the apex, radi- 

 ately ridged and ribbed, ribs rude, rather swollen, 

 nodose, interstices prickly; ribs dull white, inter- 

 stices purple -black, prickles opake- white, interior 

 horny, richly purple-rayed. 



Chemnitz, Conch. Cab. vol. xi. p. 180. pi. 197. f. 1914, 

 1915. 

 Patella ornata, DiUwyn. 



Hab. New Zealand ; Chemnitz. 



A very distinct species, rayed with light rude nodose 

 ribs, the interstices being dark puqDle-black, set with cha- 

 racteristic opake-white prickles. 



January, 1855. 



