1888.] MR. G. n. SOWICRBY ON NICVV Sl'KCIKS OF SHELLS. 207 



2. Descriptions of sixteen new Species of Shells. 

 By G. B. SowERBY, F.Z.S., F.L.S. 



[Eeceived February 6, 1888.] 



(Plate XT.) 



Lima smithi, sp. uov. (Plate XI. fig. i2.) 



L. testn suhoblique ovata, leviter inftata, tenuis, alba ; costis circ. 40, 

 rotundatis, mediocriter elevatis, levissime undtdatis instructa ; 

 area antica mediocriter elongata, leviter excavata, riigoso-pUcata ; 

 auricuiis anticis parvis, decUvibus, posticis magnis ; area car- 

 dinalis excavata. 

 Long. 6.'], lat. 51 millim. 

 JJab. Japan. 



Resembling in form L. excavata, but very decidedly ribbed. The 

 auricles, cardinal area, and anterior lunule are much the same as In 

 the gigantic Japanese species described by me in the Society's ' Pro- 

 ceedings ' for 1883 (L.ffoliat/i), but that species is smooth, excepting 

 at the sides, and not so inflated. 



The size of the only specimen known of this interesting new species, 

 vfhich forms part of our National Collection, is small as compared 

 with L. excavata ; but although it has much the look of a full-grown 

 shell, it is impossible to say that it might not attain to the size even 

 of L. goUath. 1 have, however, no doubt that it is specifically 

 distinct. 



Lima concentrica, sp. nov. (Plate XL fig. 20.) 

 L. testa rotunde flabelliformis, obliqua, lata, compressa, tenuiuscula, 

 subpellucida, cceruleo-alha, concentrice fusco midti fas data, 

 epidermide ferruyinea induta ; laminis numerosis, concentricis, 

 parum elevatis, fusco anguste marginatis, et costis angustis 

 circ. 80, confer tissimis, complanatis, interruptis, suhrugosis, 

 partim divaricatis, super-ne attenuatis, interstitiisque minu- 

 tissime crenidalis et puncturatis sculptit ; area cardinaiis 

 anyusta, mediocriter excavata ; auricuiis parviusculis, fere 

 cequalibus, anticis plicatis, rotunde injlexis ; payina interna 

 niticla, caruleo-alba, margine externo minute crenulata, tenuiter 

 fusco circumdata. 

 Long. 30, muj. lat. 27 millim. 

 Hab. Hongkong. 



A very distinct and characteristic species. It is broad and rather 

 flat ; the radiating ribs are very narrow and close-set, and the 

 interstices towards the umbones peculiarly punctured. The nume- 

 rous concentric laminae are but little raised, but they are rendered 

 conspicuous by being edged with brown. 



Since the publication of the monograph of the genus Lima in the 

 * Conchologia Iconica,' the following species have been added : — 

 L. zealandica, Sowh., Proc. Zool. Soc 187(5, p. 754. 

 L. gidialh, Suwb., Pioc. Zool. Soc. 1883, p. 30. 



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