114 Dr. J. C. Melvill and ]\[r. B. ^^tanden on 



Fain. Patellidae. 



Patella amea, Marty n. 

 Patella a>nea, Martyn, Univ. Conch, i. fig. 17 (1780). 



Var. deaurata, Gmel. 



Patella deaurata, Gnielin, Syst. Xat. 'xiii. t. i. p. 3719 (1790) ; Blaiu- 

 villp, Malac. pi. xlix. tig. 7 ; (Gmelin), E. A. Smith, Zool. Kei-guplen 

 ]\roll., Phil. Trans. Royal Soc. Lond. clxviii. p. 79 ; Pelseneer, Voy. 

 ' Belgica,' Zool., Moll.^p. 7. 



Roy Cove. 



All that were forwarded were small specimens, clean and 

 free from nullipore and other growths, consequently charac- 

 teristically marked and coloured. One example, with 

 noduled ribs, came from " extreme low-water marU,^' being 

 found there in company with Yoldia eights ii, Couth. 



Patella deltcatissiina, Streb. 



Patinella delicatisaima, H. Strebel, Mollusk. der ^^agalhaen-Provinz, 

 Zool. .lahrb. xxv. Band, Heft i. (1907) ; .Jena, p. 145, Taf. v. figs. 71- 

 72, 74-75. 



Rapid Point and Roy Cove, at low water. 



The surface of this beautiful form is most delicately squa- 

 mose, the scales imbricating. Within, a resemblance to 

 P. cenea is seen, and it is jnobable, wiien a larger series of 

 this have been gathered, that intermediates will occur to 

 link the two forms together. 



Nacella mytilina, Ilelbling. 



Patella inytilina, Ilelbling, Abhandl. ein. Pnvatge.sellsch. Bohnien,iv. 

 p. 104, tab. i. fig.'*. 5, 6 (1779) ; II. Strebel, Mollusk. der Magalhaen- 

 Provinz, p. 11.3, Taf. iii. fig. 44 (1907). 



Roy Cove, at low water. 



This species seems quite distinct from N. cj/n>f>nln7'ia, 

 Lanik., with which it is generally confounded, and is the 

 prevailing Nacella in the Falklands. 



(b) RHIPIDOGLOSSA. 



Section ZYOOIUtANClIIATA. 



P^'am. Fissurellidse. 



Fissiirella oriena, Sowb. 



Flssurella oriem, Sowb. P. Z. S. I.ond. p. 124 (1834): Thes. Conch., 

 Fiisurvlla, p. 18(), fig. 19. 



I 



