216 TURBO. 



Var. PORCATUS Rve. 1848. PI. 48, fig. 34. 



Shell depressed-globose, solid, umbilicate; spire obtuse; suture 

 slightly undulating; whorls 5, spirally lirate, and with liruhe in the 

 interstices; aperture, color and operculum as in .T. porphi/rites. 



X. Australia; Xew Ireland. 



Separated from T. porphyrites by the strong spiral sculpture. 



T. UNDULATF* Martyn, 1784. PL 42, fig. 40. 



Shell depressed-globose, solid, umbilicate, bright green, longitudi- 

 nally strigak' with white under a brown epidermis; spire dome- 

 shaped, or low-conic, obtuse; whorls 5, the upper ones sometime." 

 angulate, spirally lirate, the line wider than their interstices, on the 

 body-whorl often subobsolete; last whorl descending, somewhat 

 concave below the suture; aperture oval, white within; columella 

 with a very wide white flattened callus which extends over the 

 umbilical tract; umbilicus' wide and deep. 



Alt. 35-58, diam. 40-63 mill. 



% Xe/c Zealand; Australia. 



Sometimes unicolored green, or with the white strigations broken 

 into tessellations. Reeve's figure which I have copied is more de- 

 pressed than most specimens. 



Var. SIMSOXI Tenison-AYoods, 1876. Unfigured. 



Separated from T. undulatus by the smaller size, the nunier<>u> 

 red and black radiating flammules and the peculiar raised carina 

 on the upper side of the last whorl, continuing around the suture in 

 a kind of hem. Alt. 9, diam. 12 mill. 



Georges Bay Head and Blackmail's Bay, Tasmania. 



T. COROXATUS Gmel., 1788. PI. 50, figs. 59-61. 



Shell depressed-turbinate, diamater greater than the altitude, solid 

 imperforate, covered with irregular spiral series of nodules and gran- 

 ules, of which the subsutural series and two on the median portion 

 of body-whorl are more prominent; spire depressed, dome-shaped, 

 apex frequently eroded and red ; whorls 4-5, the last very large ; 

 aperture large, round, iridescent within ; columella wide, flattened 

 and excavated, deflexed recurved and somewhat chanelled at base. 



Alt. 40, diam. 50 mill. 



Indian Ocean; Japanese fin<l Chinese 



Operculum inside flat, greenish and golden, iridescent, with about 

 56 whorls and subcentral nucleus ; outside convex, greenish, sparce- 

 ly granulate all over. 



