62 Panama Shells. PURPURID^E. 



moderately convex, with a distinct suture ; last whorl ventri- 

 cose, with a narrow deep spiral canal anteriorly : aperture 

 subelliptical : labrum subacute, thickened with a stout varix, 

 within with about five acute spiral ridges : labiam well 

 thickened, not appressed : notch deep. 



Mean divergence about 55 ; length .5 inch ; breadth .31 

 inch ; length of spire .28 inch. 



Var. a. ; with the color nearly black. 



Station. Unknown. 



Habitat. Taboga ; C. B. A. ! 

 32 specimens were collected. 



43. TOasa liateostoma. 



Synonymy. 



Nassa luteostoma Brod. & Sowb. in Zool. Journ. IV. 376. 1829. 



Buccinum Kiener Iconog. p. 110. pi. 30. f. 1. 



Nassa xanthostoma Gray in Zool. Beech. Voy. pi. 36. f. 3. 



(parva.) 1839. 



- Souleyet (?) Voy. Bonite. Moll. pi. 41. 



f. 5-7. 1844? 



luteostoma Reeve Elem. Conch, pi. 3. f. 11. 1846. 



xanthostomaMis. GrayMoll.pl. 85a. f. 5. (soft parts.) 1850. 



Station. On sand, usually not far below high water mark, 

 in places where water is running during the recess 

 of the tide : also in similar places not far above 

 low water mark. 



Habitat. Senegal ; Kiener : also Jay. 



Real Llojos, and Acapulco ; Lesson. 



Mazatlan ; Melchers ! Menke. 



Panama; E. Jewett! Gould Mss. 



Panama ; C. B. A. ! 



We collected 330 specimens, mostly near the sea wall of 

 Panama. " M. Kiener indique le Senegal pour patrie a cette 



