GASTEROPODA. 263 
Nassa paupera, Gouty; Proceed. Boston Soc. Nat. Hist., ii. 155. 
January 1850. Expedition Shells, 70. 
SHELL minute, thin, elongate, conic-ovate, dingy-white, with a 
single brown thread on the middle of the last whorl, following the 
suture on the other whorls: surface with longitudinal rib-undulations, 
about eighteen on the last whorl, crossed by raised, revolving threads, 
about five on the upper and ten on the lower whorls, which are less 
eminent as they cross the ribs. Whorls six or seven, ventricose, the 
last short, and only about half the length of the shell; siphonal con- 
striction not deeply impressed, suture deep. Aperture proportionally 
small, about one-third the length of the shell, subcircular ; lip regu- 
larly arcuate, with nine or ten fine lamin within; callus on the ante- 
rior part of the column, not appressed, minutely granular, prolonged 
at the siphonal notch. 
Length three-eighths of an inch; breadth one-fifth of an inch. 
Inhabits the Pacific Islands. 
Much resembling Buce. coccinella, but smatler, less ponderous, more 
slender, the last whorl proportionally larger, the ribs less numerous, 
but the revolving lines more so. 
Figures 330, 330, two views of the shell, enlarged ; 3304, natural 
size. 
Nass MENDICA (Gould). 
Testa parva, rudis, solidula, elongata, rufo-cinerea, longitrorsum undato- 
plicata, spiraliter crebré lirata, epidermide tenui lutoso induta: spira 
elongata, anfractibus sex ad septem ventricosis, ultimo ellipsordeo, 
dimidiam longitudinis teste superante: apertura parva, alba, ovata ; 
labro simplici, vix crenulato, intus decem-laminato ; columella pro- 
ductd, arcuata, vix callosa; sinu siphonah amplo. 
Nassa mendica, Goutp; Proceed. Boston Soc. Nat. Hist., ii. 155. 
January 1850. Expedition Shells, 70. 
