PATELLA. 



Plate II. 



Species 2. (Fig. a, b, Mus. Cuming.) 



Patella oculus. Pat. testa suborbiculari-ovatd, coii- 

 vexiusctdd, radiatm costatd et striata, costis in testd 

 juniore crennlatis, diiodecim latiorihus majoribim ; lii- 

 tescente, uigro variegatd, coloribus cetate evauescenti- 

 bus, intus prope marginem intense uigro-hrmmed, de- 

 inde mneo-castaned, deinde opaco-earulescenfe, nucleo 

 fuscescerite-iiitelUno. 



The eye Limpet. Shell somewhat orbicularly ovate, 

 moderately convex, radiately ribbed and striated, 

 ribs in the young shell crenulated, twelve broader 

 and larger; yellowish, variegated with black, the 

 colours fading with age, interior deep black-brown 

 near the margin, then bronze-chestnut, then light 

 opake-blue, with a brownish-yelk nucleus. 



BoEN, Mus. Test. Vindobonensis, p. 418. 



Hab. Cape of Good Hope. 



The rich eye-like colouring of the interior of this spe- 

 cies is always a characteristic feature. 



Species 3. (Fig. a, b, Mus. Cuming.) 



Patella nigrisquamata. Pat. testd ovatd, erecto-co- 

 nicd, altd, radiatm costatd, costis ad quudraginta, 

 fortiter nodoso-squamatis ; Jlavicante, squarrus versus 

 apicem hie illic nigris, intus favicante-albd, nucleo 

 rufescente-fusco, centra lacteo. 



The black-scaled Limpet. Shell ovate, erectly coni- 

 cal, high, radiately ribbed, ribs about forty, strongly 

 nodosely scaled ; yellowish, scales towards tlie apex 

 here and there black, interior yellowish-white, with 

 a reddish-brown nucleus, with the centre nulk-white. 



Hab. Australia. 



A very characteristic elevately conical species, sculp- 

 tured with about forty prominently nodule-scaled ribs, 

 which are rather irregular in their development. The 

 ground-colour of the shell is a deep opake-yellow, and the 

 nodules towards the apex more especially in the young are 

 here and there deep cinder-black. 



October, 1854. 



