142 
lip thick, somewhat dilated, and furnished with six or seven intra- 
marginal tubercular teeth, sinuated at its junction with body-whorl ; 
columella-lip smooth, flattened, slightly callous above. Colour 
black or brownish-black, impressed lines on body-whorl light choco- 
late-colour ; lips purplish-brown ; teeth white or bluish. 
Animal.—Foot oblong, truncated in front, rounded behind. Ten- 
tacles cylindrically tapering. Eyes lateral and sessile, at about two- 
thirds of the length of the tentacles. Siphon long. Colour dark 
greenish-slate, and closely punctured with black and white. Ten- 
tacles zoned with brown, tips white. 
54. ENGINA COSTATA. 
Shell solid, fusiformly ovate, attenuated at both ends; spire 
acute, half the length of the shell; whorls seven or eight, convex, 
longitudinally ribbed ; ribs coarse, rounded, and crossed with nume- 
rous transverse spiral ridges, which become somewhat nodulous on 
the ribs; interstices between the transverse ridges cancellated with 
raised strize ; sutural lines undulated; canal produced and slightly 
recurved ; aperture narrow, widest above ; outer lip much thickened 
externally ; edge sharp, furnished with five or six intramarginal tu- 
bercular teeth ; columella-lip with a thin callosity, and transversely 
ribbed on the middle. Colour yellowish-brown ; aperture white. 
55. ENGINA MONILIFERA. 
Shell solid, ovate, slightly attenuated at both ends ; spire acute, 
half the length of the shell; whorls six or seven, convexly angu- 
lated, ribbed longitudinally ; ribs coarse, rounded, crossed with spiral 
transverse granular ridges, two on each whorl of the spire; suture 
faintly defined, bordered by a single row of golden-coloured granules ; 
body-whorl sculptured same as the spire ; canal short, slightly re- 
curved ; aperture narrow, oblong; outer lip nearly straight, thick- 
ened externally, and provided with four internal teeth, and three 
small tubercular teeth on the lower half of columella-lip. Colour 
white, with a broad, broken, purplish transverse band on the body- 
whorl, and a narrow one at the margin of the sutures. 
56. ENGINA ALBOCINCTA. 
Shell ovate, brownish red, with a white transverse band on body- 
whorl; apex acute, longitudinally ribbed, transversely nodosely 
ridged, finely striated between the ridges ; aperture narrow ; outer 
lip denticulated within ; canal slightly produced and recurved. 
57, HinDSIA ANGICOSTATA. 
Shell ovate; spire blunt ; whorls rounded, longitudinally ribbed, 
and transversely nodosely ridged ; interstices finely striated; aper- 
ture oval; outer lip thickened externally ; edge of lip sharp, ridged 
internally ; columella-lip arched, slightly callous, wrinkled striee on 
upper part; canal slightly produced and recurved. Colour light 
brown, longitudinal ribs darker, white band on body-whorl. 
