280 MELVILL AND STANDEN: SHELLS FROM LIFU. 
whorls, the apical simple, smooth, the rest obliquely thickly 
costate, with transverse acute lire, the interstices extremely 
minutely decussate, the mouth is oblong, the sinus small, only 
half-hollowed out of the outer lip, and not extending across, 
the lip is much thickened, fimbriolate, within seven or eight 
denticled, columella straight, simple. A good many specimens. 
(Bascauda etymologically is interesting, as being an old 
British word, signifying a wicker basket; and subsequently 
Latinized cf Juvenal xii.46, Martial xiv.g.9, and in more recent 
times again anglicized). 
M. calathiscus sp. nov. (Pl. IX., fig. 14). 
M. testa fusiform, apud apicem attenuata, tenut, delicata, 
gradato-turrita, anfractibus octo, quorum tribus apicalibus, 
stmplicibus, levibus, minimis, ceteris crassicostulatis, trans- 
versim elegantissimé clathratis, gemmulatis, albido-crystal- 
lints, hic wlic sparsim ochraceo-tinctis, apud bastm gemmulo- 
tuberculatis, canal recurvo, apertura sinuosa, sinu excavato, 
amplo, labro extus crenulato, intus octo denticulato, columella 
paullum obscure denticulata. 
Long., 6, Lat., 2 mill. 
An exceedingly graceful, delicate, crystalline shell, with 
thickened longitudinal ribs, and acute spiral lire, the whorls 
being eight in number, of which three are small, and apical. 
The sutures are much impressed, whorls slightly tumid, canal 
recurved, aperture sinuate, sinus broad and excavate, outer lip 
crenulated without, eight denticled within, columella feebly 
and obscurely. denticulate likewise. A very few specimens. 
(Calathiscus, a wicker basket). 
M. eumerista sp. nov. (Pl. IX., fig. 15). 
M. testa ovato-oblonga, levissima, albida, nitida, anfrac- 
tibus sex, ventricosts, longitudinaliter rotundt-costatts, costis 
levissimis, ultimo anfractu infra, juxta suturas, inter costas 
ochraceo-punctato, lineis spiralibus semt-pellucidis ornato, 
apertura angusta, oblonga, labro extus incrassato, tntus 
multidenticulato, columella etiam multi-denticulata, 
Long., 6, Lat., 2°50 mill. 
J.C., vili., Oct., 1896. 
