TKOCHITA.— Plate 1. 



Species 5. (Fig. a, b, Mus. Cuming.) 

 TaocHiTA Sinensis. Troch. testa orbiculari, depresso- 



conicd, exius tenuisquainoad, squamis sespe obsoletis, 



intm lavigatd, niiente ; pellucido-albd ; appendice in- 



terad laterali, appresse effmd. 

 The Chinese Teochita. Shell orbicular, depressly 



conical, finely scaled externally, scales often obsolete, 



smooth and shining iuternally ; transparent-white ; 



internal appendage lateral, appressly effused. 

 Patella Chinensis, Linnseus, Syst. Nat. p. 1275, 



Patella Sinensis, Gmelin. 



Trochita Chinensis, Schumacher. 



Patella alba, Donovan. 



Calyptraa Chinenm, Fleming. 



Calyptrcea lasvigata, Lamarck. 



CalyptrcBa Sinensis, DesLayes. 



Patella Muricata, Da Costa. 



Patella vulgaris, Philippi. 

 Hob. Southern shores of Britain, the Channel Islands, and 



the Mediterranean. 

 Excepting Pileopsis Hungaricus, this is the oidy British 

 species of the family Calyptraida. It is peculiar in being 

 finely scaled, but the scales become more or less obsolete 

 with age. 



