38 IANTH1NA RECLUZIA. 



ipheral incision on the outer lip, aperture broadly produced 

 below ; light violaceous, darker in the smaller specimens, light 

 banded at the suture. Diam. *25-'75 inches. 



California, Sandwich Islands, Australia, Chili, 



Cuba, Madeira, Atlantic 0., M. of Bourbon. 

 The S3 r nonyms are /. bifida, Nuttall (fig. 19); I. capreolata, 

 Montrouzier (fig. 18); /. Vinsoni, Desh. (fig. 20); and ? /. umbili- 

 cata, Orb.- (figs. 21, 22), the .latter a malformation. 



Un figured Species of lanthina. 



I. ALBA, Anton. Hab. unknown. 



I. MEGASTOMA, A. Ad. Indian Ocean. 



I. N1TIDA, A. Ad. 



I. INCISA, Phil. Senegal. 



The three latter are probably synonyms of /. exigua, Lam. 



Genus RECLUZIA, Petit, 1853. 

 R. JOHNII, Chemn. PI. 10, fig. 24. 



Rather thin, shining, transparent, with fine, slightly undulated 

 spiral striae, periphery obtusely angulated and grooved ; whitish, 

 with very light bluish violaceous maculations. Length, 23 mill. 



Indian Ocean. 

 We have no satisfactory account of this species. 



R. HARGRAVESII, Cox. PI. 10, fig. 23. 



Thin, olivaceous horn-color, very indistinctly banded, spirally 

 obsoletely striated. Length, 38 mill. 



Port Stephens, N. S. Wales. 



Very probably identical with the preceding species. 



R. ROLLANDIANA, Recluz. PL 10, figs. 25-27. 



Rather thin, olivaceous brown, with irregular, subundulating 

 spiral striae. Length, 23 mill. 



Mazatlan ? New Caledonia. 



E. Montr ouzieri, Souverb. (fig. 27), appears to be a synonym. 



Var. ANNAMITICA, Wattebled. Fig. 26. 



Shell more depressed and more inflated, rarely with darker 

 bands ; peristome sinuous, columella twisted a little. 



Length, 25 mill. Annam. 



