VANIKORO. 169 



1 2. SEMIPLICATA, f. 5, Recluz. — This shell cannot be here 

 described, there being some uncertainty as to the speci- 

 mens. 



13. SouLEYETANA, f. 21, Recluz. — Globosa, altiuscula, sub- 

 acuminata, jequaliter cancellata ; umbilico parvo ; columella 

 recti. — The cancellations are moderately small, regular, and 

 distinct. Umbilicus small, columella rather straight. 



14. HELicoiDEA, f. 20, Le Guillou. — Lata, oblique et 

 flexuosim costata, inter costas foveolata ; ultimo anfractu 

 oblique crescenti ; umbilico angustiusculo ; apertura alta, 

 subpyriformi ; columella rectiuscula. — The ribs are oblique 

 and flexuous, and not interrupted by the spiral lines which 

 cause pits in the interstices. 



15. Gaimarui, f. 13, J.. Adams. — Latissime cancellata; 

 spira elevata, acuminata ; canali umbilicali angusto. — A small 

 shell with few strong crossbars. 



16. Cdmingiana, f. 24, Recluz. — Subglobosa, conspicue 

 carinata, inter carinas concentrice subsulcata, umbilico pro- 

 fundo, apertura semicirculari. — The spiral keels are promi- 

 ment and crossed by concentric sulci. 



17. Cdvieriana, f. 23, Recluz. — Subcserulea et fulva, 

 tenuiter spiraliter et concentrice striata; ultimo anfractu 

 infra oblique expanse ; umbilico maximo ; apertura lata, de- 

 pressa. — Much more finely sculptured in both directions. 

 The umbilicus and the lower part of the aperture are both 

 wide and oblique. 



18. DiSTANS, f. 14, Recluz. — Tenuis elevata angusta acu- 

 minata, distanter oblique concentrice costata, spira elevata, 

 umbilico angustissimo ; apertura auriformi. — There are no 

 traces of spiral ridges, but distant oblique concentric ribs. 



19. rosea, f. 15, Recluz. — Obliqua, rosea, tenuiter oblique 

 cancellata ; umbilico latissimo ; apertura oblique semicircu- 

 lari ; spira acuminata. — Of a rosy tint, finely and evenly 

 cancellated. 



20. ACUTA, f. 12, Recluz. — Depresso-subpyramidata, obli- 

 qua, subaequaliter cancellata ; umbilico latissimo ; apertura 

 infra lata, columelki ad suturam extensa. — An oblique species 

 with wide umbilicus and aperture, rather finely and equally 

 cancellated. 



