NATICA. 81 



semilunata, intus purpurea. — In spite of the preliminary 

 adverb attached to this name by Chemnitz, there seems to be 

 no valid reason for dropping it in favour of Lamarck's later 

 name, inillejjunctata, which Eeeve applied to the variety 

 which is only spotted all over, and not banded with rows of 

 blotches. 



32. SPADICEA, f. 20, Gmelin. — Mag-ua, giobosa, erassa, 

 medio anfractuum castanea, albo bifasciata ; spira brevi an- 

 fractibus ad suturam depressis et crenulatis, umbilico an- 

 gustiusculo, callo spirali depresso, lato. — The principal part 

 of the shell is brown or delicately fawn-coloured, with a white 

 band at the suture, and one dividing the brown. The spiral 

 callus is broad and depressed. 



33. Adansoni, f. 94, Reeve. — N. macidatce simillima, sed 

 angustior. — In colouring and substance resembling N. tna- 

 culata (the blotched var.), having also the dark purple tint 

 in the inner part of the mouth, but much narrower, with a 

 more elevated spire. It is 'Xe FaneV of Adanson ; possibly 

 a variety of the above. 



34. MACULOSA, f. 13, Lamarck. — Globoso-subpyramidata, 

 anfractibus superne declivibus, purpureo punctatis, infra sub- 

 inflatis immaculatis, callo spirali umbilical! angusto. — Spire 

 produced, whorls spotted and shelving above, becoming wider 

 and clearer towards the lower part. 



35. PELLis-TiGRiNA, f. 83, ChemnUz. — Anguste giobosa 

 fulva, punctis magnis purpureis ornata ; spira elevata, anfracti- 

 bus superne ad suturam depressis, turn tumidis infra contractis 

 umbilico latiusculo, varice spirali umbilicali angusto.— Much 

 like N. Adansoni in form, but not so naxTow. It is painted 

 with large round purplish spots ; the spiral umbilical varix 

 is narrow. 



36. MAHEENSis, f. 40, Recluz. — Griobosa, alba, interruptim 

 castaneo bifasciata ; ultimo anfractu ad suturam infrae^ue 

 leviter plicato ; umbilico brevi rotundo, callo spirali rotundo 

 ad terminum deflecto. — The two cliestnut bands are neatly 

 interrupted in lines, and the umbilical callus is placed at the 

 lower part of the cavity. 



37. GrUALTERiANA, f. 152, Petit. — Oblique subovata an- 

 gusta tenuis, liuearum rubrarum fasciis tribus ornata ; spira 



