406 FUNAFUTI ATOLL. 
Schmeltz quotes this from Fiji and Samoa. There are specimens 
in this Museum from New Caledonia. 
TEINOSTOMA QUALUM, Sp. nov. 
(Fig. 2). 
Fig. 2. 
Shell with spire scarcely elevated, rather widely umbilicated. 
Colour white. Whorls three, flattened below the suture, rounded 
at the periphery and concave at the base. Sculpture :—the last 
whorl] is ornamented by about twenty, broad, squarely projecting, 
transverse ribs, which arise at a distance from the suture, enlarge 
to the periphery and continue to the basal angle, these ribs vanish 
on the penultimate whorl; close, regular and fine, raised, spiral 
lines cover the whole shell, crossing the ribs and interstices alike; 
these are in their turn overridden by transverse microscopic 
threads. Base excavate in the centre.. Umbilicus one-fifth of 
the shell’s diameter, exhibiting the previous whorls. Aperture 
round, lip thickened, above spreading on the previous whorl and 
at the base projecting a callus tongue into the umbilicus. Major 
diameter 1:8; minor 1:4; height *75. 
Three specimens from sand on the lagoon shore, all of which 
are unfortunately broken at the aperture. 
This closely resembles Cyclostrema archeri, Tryon* from Singa- 
pore, which is rather larger and more closely ribbed, but the basal 
callus on the lip of the present form has decided me in considering 
it generically and therefore specifically distinct from that. 
TEINOSTOMA TRICARINATA, Melvill & Standen. 
Melvill & Standen, Journ. Conch., viii, 1896, p. 311, pl. xi, 
figs. 75 a. b. 
Three specimens occurred on the sandy beach of the Funafuti 
lagoon. The only other example known came from Lifu. 
* Man. Conch. x., 1888, p. 89, pl. xxxiii., figs. 84, 85. 
