PLEUROTOMID. 45 
whorl equal to or rather longer than the spire ; a smooth band at the 
sinus, behind which it is obliquely striated, and in front spirally ribbed ; 
the interstices finely transversely striated ; nine or ten ribs on the outer 
lip in front of the smooth band ; canal very short ; pale brown. 
Length, -75; breadth, ‘35. 
Auckland. 
Genus, LACHESIS—Risso. 
Shell strong, turreted, many whorled, the last whorl not very large ; 
surface crossed by longitudinal ribs and transverse striae ; apex of spire 
mammilated ; aperture oval; canal very short, straight, not recurved ; 
outer lip slightly thickened externally, crenated internally ; operculum 
ovate, acute, nucleus apical. 
L. sulcata, Hutton; C.M.M., p. 12. Body whorl about as long 
as the spire; whorls rather flattened, deeply distantly spirally grooved, 
about eight on the body whorl; outer lip thickened; reddish brown, 
sometimes variegated with white. 
Length, -35 ; breadth, 15. 
Stewart Island. 
Genus, DEFRANCHIA—Millet. 
Shell turreted fusiform ; spire elevated, whorls cancellated ; aperture 
oval; canal short ; outer lip with a slight emargination, or sinus at its 
junction with the body whorl; operculum none. 
D. luteo-fasciata, Reeve; P.Z.S. 1845, p. 114; Conch. Ic. f. 239. 
Spire acute, as long as the’ body whorl ; transversely ribbed, and finely 
spirally striated ; columella smooth ; pale brown or purplish brown, with 
a spiral pale band. 
Length, :43 ; breadth, ‘17. 
Stewart Island to Auckland. Chatham Islands. 
Genus, DAPHNELLA—Hinds. 
Shell fusiform, thin, fragile, surface usually striated ; spire elevated, 
last whorl elongated ; aperture oblong-oval, slightly channelled in front ; 
columella simple ; outer lip acute, separated from the last whorl so as to 
leave a sinus. 
D. cancellata, Hutton; Jour. de Conch., 1878, p. 18. Fusiform, 
thin, finely cancellated ; spire acute; aperture oblong, slightly channelled 
in front; and with a slight posterior sinus; yellowish-white, slightly 
blotched with brown. 
Length, -5 ; breadth, -2. 
Auckland. 
FAMILY—-CANCELLARIID. 
Radula obsolete. Rostrum very short ; tentacles wide apart with the 
eyes on the outer sides near their bases ; foot small, triangular. Mantle 
enclosed, with a rudimentary siphonal fold ; operculum none. 
G 
