164 Mr. E. A. Smith on Land- and 



longit. totius i adxquans : perist. eiiLlate expansum, album, 

 marginibus callo tenui junetis. 

 Longit. 6 millim., diam. 3 ; apertura 2 longa, 1| lata. 



Hah. Hkata [Emin). 



The teeth in the aperture are almost equidistant from one 

 another. One is on the columella, one exactly opposite on 

 the outer lip, one (the smallest) at the base of the aperture, 

 and the fourth, which is lamellar, curved, and hollowed out 

 on the right side, joins the termination of the labrum. 



Ennea cenigmatica. (PI. VI. fig. 11.) 



Testa parva, brevis, pupiformis, supra conoidalis, perforata, parum 

 nitida, alba ; anfract. 8, lento crescentes, convexiusculi, angusti, 

 costcllis numerosis leviter obliquis et arcuatis instructi, sutura 

 profunda sejuncti, ultimus anticevix ascendens, utrinque et infra 

 labrum valde scrobiculatus et distortus ; apertura parva, insigniter 

 plicata, contorta ; perist. solutum, continuum, tonne, dilatatum, 

 maxime irregulare, dextrorsum sinuatum, siphonatum, album. 



Longit. 4| millim., diam. 3 ; apertura Ig longa et lata. 



Huh. Mamboia, at an altitude of 4000 to 5000 feet {Last). 



The aperture of this little shell exhibits such distortions, 

 plications, and wrinklings that the orifice is almost closed ; 

 indeed it seems impossible to convey in words any adequate 

 idea of it. 



Ennea soror. (PI. YI. fig. 12.) 



Testa parva, angusto perforata, pupiformis, superno conoidea, sub- 

 pellucido-albida, panim nitida ; anfract. 7, convexiusculi. apicales 

 la^ves, ca^teri tenuiter oblique et confertim costulati, sutura sub- 

 profunda, cronulata, baud obliqua, sejuncti, ultimus antice con- ■ 

 strictus, utrinque et infra apcrturam valde scrobiculatus ; aper- 

 tura parva, longit. totius ^ ada?quans, ringens, dentibus sex 

 albis, valde inccqualibus, instructa ; perist. undique expansum et 

 Toflexum, album. 



Longit. 5 millim., diam. 2§ ; apertura 1^ longa, 1^ lata. 



Hah. Same as that of E. a^nigmatica. 



The teeth in the aperture are disposed as follows : — A small 

 denticle on the columella, a larger prominence behind it 

 further witliin the aperture, a thin curved lanu-Uar tooth on 

 the body-wall at the junction of the labrum with the whorl, 

 a very large one on the middle of tiie outer lip with a very 

 minute one above it or, it might be said, adjoining it, and the 

 sixth, which is also a very small denticle, situated between 

 the large one on the outer lip and the smaller one on the 

 columella. The pit^ on the la^t whorl outside the aperture 



