MoUusca frum the North-ivest Falklands. 113 



Callochiton ilhuninutia (Reeve). 



Chiton Uluminatus, Reeve, Concb. Icon. pi. xxii. fig-. 147 (1847). 

 Chiton {Callochiton) Uluminatus, Smith, P. Z. S. p. 35 (1881). 



This species seems very generally distributed over the 

 area. 



Pkuvlphora carmichaelis (Wood), 



Chito7i carmichaelis, Wood, Suppl. Ind. Test, pi. i, fig. 10 (1828) ; 



Gray, Spicil. Zool. pi. i. fig. 6 (1828). 

 Chiton setigei-, King, Zool. Journ. v. p. 358 (1832) ; Sosverby, Conch. 



Illustr. p. 17 ; Zool, Beechey's Voyage, pi. xl. fig. 7. 



Not uncommon, but only small examples forwarded. 



Order PROSOBRANCHIATA. 

 Suborder DiOTOCARDlA. 

 (a) DOCOGLOSSA. 

 Fam, Acmseidse. 



Acmcea ceciliana, D^Orb. 



Acmcea ceciliana, D'Orb, Voy. Am^r, M6rid. p. 482, lab. Ixxxi. 

 figs. 4-6; Gay, Hist, de Chile, viii. p. 260 (1854); Tryou, Man. 

 Conch, xiii, p, 33, pi. xxxiv. tigs, 14-21. 



Var. magellanica, Strebel. 



Ac7n(sa ceciliana, var. maffellanica, H, Strebel, Mollusk. derMagalhaen- 

 Provinz, Zool. Jahrb. xxii. Band, Heft i., Jena (1907). 



Dip Creek, Roy Cove, at low tide, and also occasionally at 

 liig-ji-water mark. One from the latter locality seems to be 

 of the variety magellanica. This is a common moUusk 

 throughout the Falkland group. 



Scurria scurra (Lesson). 



Patella scurra, Lesson, Voyage de la ' Coquille,' 1826-30, 



Scurria scurra (Gray), Ti-yon, Man. Conch, xiii. pi. xxxix. figs. 26, 27. 



" Roy Cove : found dead on the shore at low water. Port 

 Egremont : very large examples on the south shore after a 

 northerly gale ; tliey were cast up alive, but birds soon 

 extracted the animal." — R. V. 



These latter are in fine condition, pale brown, very smooth, 

 and irregularly marked longitudinally with zigzag lines, 

 becoming evanescent above the margin. Within, the surface 

 is pure white, Tiiis species has a large synonymy, it being 

 the Acmcea scurra, D'Orb., Lottia iiaUida, Sowb., L. coiiica, 

 Gould, and Acmoia cijmhula, ]^\\\)C\ 



Ann. (f; il%. N. Hist, ^er, 8. Vvl xiii. « 



