2*20 On new LnnJ-ShcUs from Xew Cuhdonia. 



Mono2:rapl) of the Tenostriiil and Fliiviatile MoUusca of 

 New Caloilonia is invaluable to the student of the concho- 

 logical fauna of that island. 



Charopa {Tropidutropis*) Oudei, sp. n. (Fig. 7.) 



Shell discoidal, sharply carinate, cnvcred with a slightly 

 lamellose pcriostracuin ; spire flat ; whorls 3-4, painted with 

 purple flame-markings, which appear as blotches near the 

 sutures; sutures impressed; base of shell very convex; 

 umbilicus moderately broad, deep; peristome simple; 

 aperture securiform. 



Alt. 2*75, diam. maj. 7"25 mm. 



Aperture: alt. 2, diam. 3 mm. 



I/ab. New Caledonia. 



Keadily separable from its ally T. trichocoma, Crosse f, by 

 its narrower umbilicus and by its less lamellose periostracum ; 

 moreover the spire is not quite so flat as is the case with 

 T. trichocoma. 



Ostodes vitreus, sp. n. (Fig. 8.) 



Shell depressedly turbinate, transparent, pale horn-colour; 

 whorls 4-5, the last three sculptured with spiral lirae, obso- 

 lete only on the base near the aperture ; sutures well im- 

 pressed ; umbilicus rather wide and deep ; peristome serrated 

 by the termination of the spiral liraj ; aperture subcircular ; 

 columella curved, a callosity joining it with the lip above ; 

 operculum paucispiral, horny, concave. 



Alt. 5'25, diam. maj. 7*5 mm. 



Aperture: diam. 2'5 mm. 



J/ab. New Caledonia. 



The present species may be compared with Ostodes upolensi.i, 

 Moussa, from Upolu ; it is, however, more depressed, tiie 

 sculpture is coarser and more regular, and there are no traces 

 of crenulation ; moreover it is much thinner and more 

 transparent than is the case with 0. vpoltnsis. 



Acmella [Solenomphala) turbinata, sp. n. (Fig. 9.) 



Shell perforate, turbinate, smooth, polished, brownish 

 ho'rn-colour, indistinctly streaked with grey; whorls 5, the 

 last three very convex ; sutures deeply impressed ; umbilicus 

 moderately wide ; peristome simple ; columella descending 



• Ancey, Bull. Soc. Mai. Fr. v. p. 370. 

 t Joum. de Conchvl. vol. xvi. pp. 158 160. 



