NATICA.— Plate XXV. 



The small Natica. Shell scarcely mnbilicated, sub- 

 globose, spire rather exserted, whorls rounded, aper- 

 ture lunar-ovate, columella callously reflected at the 

 lower part, callosity nearly spread over the umbilicus; 

 dull white or pale olive, more or less eroded. 



Say, Journ. Acad. Nat. Sci. PhOadelphia, vol. ii. p. 257. 



Hab. Bay of Massachusetts, United States (taken from 

 fishes) ; Gould. 

 This little species, though so closely allied in character 



and habit to N. clmtm, ditfers in having a horny operculum. 



The whorls are more slanting round the upper part, and 



the umbilicus is only partially covered, the columeUar lip 



being more callously reflected towards the base. 



Species 118. (Mus. Cuming.) 

 Natica Caribb^a. Nat. testa anguste profundi utuhi- 

 licatd, ovatd, crasslitscnld, solidd, spird brevi, subob- 



tusd, mifractibiis Itsvibus, decUvi-convexis, apertura, 

 lunari-ovatd, colmnelld callodtate lata demd superni 

 munitd, callodtate umbiUcum fere tegente ; sordide 

 livido-albicante, fascia opaco-albd jiixta mduram cin- 

 yulatd. 



The Caribbean Natica. Shell nan-owly deeply um- 

 bilicated, ovate, rather thick, solid, spire short, rather 

 obtuse, whorls smooth, slantingly convex, aperture 

 lunar-ovate, columella with a broad dense callosity 

 at the upper part, callosity almost covering the um- 

 bilicus ; dull livid white, encircled with an opake- 

 whitc band next the suture. 



Philippi, MS. in Mus. Cuming. 



Hab. Caribbacan Sea. 



A small solid white; shell, of a peculiar livid aspect, 



opake next the suture ; the columella being densely callous 



at the upper part. 



