120 RHYTIDA. 



R, OUVEANA, Souverbie. PI. 23, figs. 49, 50. 



Thin, subpellucid, closely arcnately striate, with spiral 

 impressed lines; yellowish, inconspicuously fasciated with 

 yellowish brown ; last whorl subcarinated on the periphery. 



Diam. 7*5, alt. 3 mill. 



Ouvea, Loyalty Islands. 

 R. RUFOTJNCTA, Gassies. PI. 22, fig. 13. 



Yerj- widely umbilicated, discoidal, thin, longitudinally and 

 transversely striate ; yellowish red, shining, with chestnut rays 

 above and below ; whorls 3^, with profound suture, flattened 

 above, convex below, the last not descending ; aperture yel- 

 lowish, lip simple. Diam. 5, alt. 2 mill. 



New Caledonia. 

 R. LUTEOLINA, Gassies. PI. 23, figs. 52, 53. 



Closely striate and spirally sulcate ; shining, orange-brown, 

 indistinctly darker banded on the subcarinate periphery ; suture 

 sulcately crenate. Diain. 6, alt. 3 mill. 



Isle of Pines, New Caledonia. 



R. YAHOUENSIS. Gassies. PL 28, figs. 43-45. 



Closely striulate, with spiral impressed lines, somewhat 

 shining, yellowish corneous. Diam. 5, alt. 2 mill. 



New Caledonia. 



Has a more open umbilicus, and is without the peripheral 

 band of R. luteolina. 



R. DEPLANCHEST, Gassies. PL 24, fig. 61. 



Thinly striate, with spiral impressed lines ; whorls 3^, 

 rapidly increasing ; shining, orange-brown, with a chestnut 

 band on the subcarinate periphery ; aperture yellowish, show- 

 ing the band. Diam. 7, alt. 3 mill. 



Lifu, Loyalty Is. 

 R. COSTULIFERA, Pfr. PL 28, figs. 31, 32. 



Conically depressed, thin, diaphanous, rather closely arcuately 

 striate; yellowish brown, with chestnut maculations at the 

 suture, and chestnut zigzag lines covering the surface ; periph- 

 ery subangulated, base somewhat plane, angulated next the 

 conical umbilicus. Diam. 6'5, alt. 2 in. 



Isle of Pines, New Caledonia. 



Crosse has described a var. major, with 6 whorls, instead of 5 ; 

 diam. 7 25, alt. 4 mill. 



