GIBBULA. 235 



G. depressa Tenison-Woods, Proc. Roy. Soc. Tasm. 1875, p. 154. 



G. DOLOROSA Tenison-Woods. 



Shell small, turbinate-conoid, solid. Urate, slightly shining, black- 

 ish-purple, apex pearly, rosy ; whorls 4-5, slightly convex, encircled 

 by wide rounded equal lira?, and decussated by oblique, obsolete in- 

 cremental striae ; base convex, lirate, purple ; umbilicus narrow, 

 longitudinally striate ; aperture rounded, brilliantly iridescent, 

 lirate within ; columella margined. 



Alt. 7, diam. 7 mill. (Tenlson- Woods.) 



Babs' Straits. 



A somewhat tumidly conical small solid shell, umbilicate and 

 lirate, specially distinguished by its blackish-purple hue, while the 

 apex is pearly and rose color. The mouth is splendidly iridescent, 

 and the columella is marginate. (T- Woods.) 



G. dolorosa Tenison-Woods, Proc. Roy. Soc. Tasm. 1876, p. 143. 

 (1877). 



G. PHASiANELLA Dcshaycs. PI. 31, figs. 31, 32, 33. 



Shell small, globose-turbinate, narrowly perforate, thin, smooth, 

 shining, marbled and mottled with various shades of olive, brown 

 and pinkish, usually showing dots of white, or spiral lines of white 

 and pink or brown articulated ; spire short, conical, apex minute, 

 acute, sutures impressed ; whorls about 5, rounded, the last large, 

 convex below, indented around the narrow white umbilicus ; aper- 

 ture rounded-oval, with a very thin layer of bluish iridescent nacre 

 within, oblique ; outer, basal and columella margins well curved, 

 thin, simple, converging and united across the parietal wall by a 

 thin layer of callus. Alt. 6, diam. 6 mill. ; alt. 4, diam. 4 mill. 



Id. of Reunion ; Art, Netv Caledonian Archipelago ; Lifu, Loxjalty 

 Archipelago. 



Turho phasianellus Desh., Conchyl. de I'lle de la Reunion, p. 74, 

 t. 9, f. 13, 14. — Trochus phasianellus Fischer, Journ. de Conchyl. 

 1874, p. 156, and 1875, p. 49 ; Coq. Viv., p. 363, t. Ill, f 4. 



This beautifully variegated little shell is closely allied to G. tas- 

 manica Petterd differing in the smoother, polished surface and color- 

 ation. The rich, mottled color-pattern is like some specimens of 

 Turbo petholatus L. It is the type of Fischer's subgenus Calliotro- 

 chus, a section which includes also G. tasmanica and probably some 

 other small species. 



