MELVILL AND STANDEN: SHELLS FROM LIFU. 285 
apud suturas impressis, unangulatis, longitudinaliter costu- 
latis, spiraliter liratis, junctura costarum minute gemmulatts, 
ultimo anfractu transversim quadri- vel quingue- brunneo- 
lineato, penultimo untilineato, apertura oblonga, sinu recto, 
labrum effodtente, labro extus incrassato, tutus minutisseme 
denticulato, margine columellari recto, simplice. 
LLG OG PAO GU SEC, SGT TRO 
A very delicate species, with beautiful gemmuled ribs, and 
faint spiral linear brown banding. Of attenuate fusiform 
shape, pale ochreous, impressed at the sutures, whorls six, 
gradate, mouth oblong, sinus straight, deep. Outer lip incras- 
sate, minutely denticled within, columellar margin straight, 
plain. A few specimens. (evoeApos, with good benches of 
oars, from the beautifully gemmuled riblets). 
M. (Cythara) psalterium sp. nov. (Pl. IX, fig. 23). 
M. testa attenuato-fusiforint, perlevi, gracli, anfractibus 
septem (2), omnibus longitudinaliter obligut-costatis, costts 
levibus, transversim ochraceo-zonatis apud medium, ultimo 
anfractu in medio simul ac ad basim simili modo zonato, 
intusgue zonas bi vel tri vittato, apertura oblonga, angusta, 
labro extus paullum incrassato, tntus levt, columella simplice, 
obscure denticulata, 
Long., 9:10, Lat. 3 mill. 
A handsome smoothly ribbed shell, attenuately fusiform, 
whorls probably seven, but only five appear on our broken 
specimens, an ochraceous band appears in the middle of every 
whorl, the last whorl two-banded, mouth oblong, narrow, outer 
lip thickened, inner smooth. 
Slightly allied to AZ. vexil/um Reeve, but not decussate. 
M. gracilis Reeve, from the Philippines, is of the same shape, 
and likewise banded in the same manner, but the revolving 
striae are perfectly absent in JZ fpsalterium, Very rare. 
(Psaltertum, a harpsichord), 
