380 MELVILL AND STANDEN ‘ SHELLS FROM LIFU. 
The shell is very graceful and delicate, attenuate, acicu- 
late, nine whorled, two whorls being apical, the fourth, fifth, 
and sixth tinged in the lower half with either chestnut, 
yellow, pale-pink, or left wholly white and unicolorous; the 
antepenultimate whorl is often similarly tinged, but the last 
two whorls are white; the last is prolonged and straight. 
Mouth ovate, oblong; outer lip slightly effuse, thin; colum- 
ella one-plaited. A few specimens. 
Allied to O. striata Pease, but the whorls are transversely 
striate and delicately decussate. It is not a typical Odostomia, 
but our knowledge of that genus and its allies is at present so 
unsatisfactory, that we do not know precisely where to locate it. 
Elusa gradatula sp. nov. (Pl. XL, fig. 84.) 
£. testa attenuata, gradata, fusiformi, per-gracili, nivea, 
levi, anfractibus decem, turritis, levibus, longitudinaliter 
minuté et arcté costulatis, costis nitidis, interstitiis per-levt- 
bus ; apertura ovata, labro tenut, columella uniplicata. 
Long. 4°50, Lat. 1°50 mull. 
This shell has some affinity with Pyrgulina pyrgomella 
Melv., described recently from Bombay. The whorls are ten, 
attenuate, gradate, very slender, white, smooth, uniformly very 
finely longitudinally costulate. Columella once-plaited. 
Olivella Williamsi sp. nov. 
O. testa fusiformi, polita, anfractibus sex, apud suturas 
profundée canaliculatis, et excavatis, per-levibus, anfractu 
ultimo oblongo, candido, flammis vel linets fulgetrinis castanets 
concinné decorato, apertura angusta, oblonga, labro tncras- 
sato, columella 7-8 plicata. 
Long. 15, Lat. 7 mill. 
A well-marked, exceedingly pretty O/ve//a, which is not to 
be found either in the British Museum, Mr. Williams’ collection, 
or any of the collections, public or private, we have been able 
to examine. Nor is any mention made of it in Mr. F. P. 
Marrat’s Monograph of the genus in Sowerby’s “Thesaurus 
Conchyliorum.” 
J.C., viii., Apr. 1897. 
