315 
nodulosis ad plicas, et linea transversa elevata ad suturas in- 
structis ; anfractu ultimo antice constricto ; apertura subqua- 
drata, columella plicis quatuor instructa, canali aperto, labro 
intus plicato. 
Hab. ? (Mus. Cuming.) 
This is a handsome white shell, with the interstices between the 
longitudinal plicze stained of a dark purple colour. 
16. Larrrus MARQuESANUS, A. Adams. JL. testa fusiformi, 
umbilicata, sordide alba, rufo tincta, apice purpureo, spira 
apertura longiore ; anfractibus septem, longitudinaliter plica- 
tis, transversim liratis, liris asperis; anfractu ultimo antice 
atro-purpureo tincto ; apertura ovali, canali mediocri, colu- 
mella plicata, labro margine crenato. 
Hab. Marquesas. (Mus. Cuming.) 
The base of the last whorl is stained with purplish-black, as is also 
the apex; the shell is umbilicated, and the plicee are rough, with 
minute imbricate scales. 
17. Lattrus presprectus, A. Adams.  L. testa ovato-fusiformi, 
umbilicata, spira aperturam cequante, fusca, lineis albis trans- 
versis ornata, antice atro-purpureo tincta; anfractibus planius- 
culis, longitudinaliter plicatis, plicis distantibus, rotundatis, 
transversim liratis, liris subequalibus, confertis, supremis ad 
suturas crenato-dentatis, suturis impressis; apertura ovata, 
columella plicis quatuor subobsoletis instructa, canali brevi, 
labro intus sulcato. 
Hab. Chinese Seas. (Mus. Cuming.) 
A small fusiform fuscous species, transversely lineated with white, 
and stained at the fore part with blackish-violet. 
18. Latirus evecans, A. Adams. L. testa fusiformi, albida, 
spira aperturam equante ; anfractibus conveaxiusculis, longitu- 
dinaliter plicatis, plicis validis, rotundis, transversim liratis, 
interstitiis clathratis ; apertura ovali, columella triplicata, 
canali subproducto, labro intus sulcato. 
Hab. ? (Mus. Cuming.) 
This is an elegant fusiform species, of a white colour, with rounded 
plicate whorls, neatly clathrate in the interstices. 
19. Latirrus contemptus, A. Adams. J. testa ovato-fusi- 
formi, spira aperturam equante, pallide fusca, lineis elevatis, 
transversis, rufo-fuscis ornata, longitudinaliter plicata ; aper- 
tura ovata, columella plicis tribus subnodulosis instructa, 
labro postice sinuato, margine crenulato, intus liris elevatis 
instructo. 
Hab. West Indies. (Mus. Cuming.) 
A small brown species, ornamented with transverse red-brown 
lines, and with the outer lip sinuated at the hind part; the plice 
are rib-like, and rather nodulous at the transverse elevated lines. 
