112 Dr. J. C. Melvill and Mr. R. Standen on 



This cove is located on the nortli shore of King George Bay. 

 It is very secure and narrow, but tlie water is fairly deep, 

 ranging from 8 fms. at its mouth to ' nil ' at its upper 

 extremity, and it measures about a mile and a half in 

 length. 



" The bottom varies from fine shingle and sand for about the 

 first three hundred yards, this being scoured by sheltered 

 estuaries, effectually preventing any work being done on the 

 water, so shore-collecting was the main chance and also 

 close examination of many freshwater pools near, especially 

 the large freshwater Inke at the head of Bi/ron Sound. 



" Within tidal limits, by far the best collecting-ground was 

 to the north-east of Rapid Point, Port Egremonf. Here an 

 eddy or back-water was formed, and, owing to the abundance 

 of large flat shale rocks of varying sizes, some excellent 

 collecting could be done. 



" Carcass Island is 20 miles N. of Rapid Point. We 

 landed there for a few hours one day when outward bound 

 from Stanley, and found a few Mollusks not noticed else- 

 where."— i/. V. 



We must express here our indebtedness to Mr. Vallentin 

 for airain entrustinii" to us his Falkland Island molluscan 

 collections to work out, as they have interested us deeply ; and 

 we would also thank IMessrs. A. J. Jukes-Browne, F.li.S., 

 H. B. Preston, F.Z.S., 'J\ Iredale, and, above all, Mr. Edgar 

 A. Smith, I.S.O., for valuable aid .in many ways, most un- 

 grudgingly given. 



Class GASTEROPODA. 



Order AMPHTNEURA. 



Suborder PoLYPLACOniORA. 



Tonicia atrata (Sowb.). 



Chiton atrntux, Rowevbv, Cliarlesworth's Mag. Nat. Hist. 1840, 



p. L'04 ; Conch. Illustr."figp. 67, 58. 

 Tonicia atrata (Sowb.), II. & A. Adams, Gen. Rec. ]\Inll. i. p. 474 



(18o8) ; Pilsbr}', iu Tryon, I\lan. Conch, xiv. [p. 201, pi. xli. 



fig.g 28-30. 



Not uncommon in the W^est Falklands. 



Tonicia hennetti, Iredale, MS. 

 Rare. 



A species with smoolhish grey valves. We cannot find 

 that this has yet been described. 



