APPENDIX—MOLLUSCA. 553 
HALIoTis ovina, Chemnitz. 
Pilsbry, Man, Conch., xii., 1890, p. 125, pl. xix., figs. 7, 8. 
A specimen was obtained at Funafuti by Mr, A. E. Finckh. 
TEINOSTOMA PARVULUM, sp. NOV. 
(Fig. 64.) 
Shell minute, solid, depressed turbinate, 
with slightly elevated spire. Colour cream. 
Whorls four. Sculpture—about fourteen 
elevated, spiral lyree which are weaker 
and widest apart above and closer and 
stronger towards the umbilicus. Above 
and on the periphery, their interstices are 
occupied by one or two fine spiral threads. 
No transverse sculpture is apparent. Base 
rounded. Umbilicus oblong, narrow, deep; 
the basal sculpture winding obliquely into 
it. Aperture oblique, circular, with a smooth, inner, raised 
margin and a stout varix alternately and evenly grooved and 
ridged by the spiral sculpture. The left lower margin of the 
varix is produced in a tongue over the umbilicus. Major diameter 
1:14, minor 1; height ‘8 mm. 
One specimen dredged in 36 fathoms north of Pava Islet. 
This species, the least of the genus to which I have assigned it, 
has an equal claim to be placed in Ziotia. The subumbilical 
tongue, a rather artificial feature, has governed the present generic 
disposition. 
TEINOSTOMA ROTATUM, Sp. nov. 
Shell small, per- 
forate, subdiscoidal. 
Colour white. 
Whorls three and 
a half, rounded, 
gradually increas- 
ing, last descending 
Lt 
