Neiv Species of Victorian Mollusca. 133 



Dimensions of Shell Figured. — Height, 6 mm. ; breadth, 6 mm. 



Locality. — Dredged in five fathoms, sandy mud, off Phillip 

 Island, Western Port, by C. J. Gabriel. 



Observations, — Mr. Charles Hedley kindly compared our speci- 

 mens with the type in the Australian Museum, Sydney, and 

 considers them identical, with the exception that ours is rather 

 larger and has half a whorl more. 



Ei^ato denticulata, sp. nov. (PL XX., Fig. 5.) 



Shell pyriform, somewhat solid, with a high shoulder and 

 prominent but somewhat small spire. 



In addition to the embryonic portion, consisting of about 

 one-and-a-half smooth whorls, there are usually three or four 

 succeeding convex whorls, each whorl enveloping the previous 

 one to such an extent that the suture is not very distinct. Body 

 whorl gradually and evenly tapering to the relatively broad 

 anterior end ; but the dorsal aspect shows a slight concavity in 

 the slope just before reaching the anterior extremity. Entire 

 surface smooth and lustrous. Aperture long and narrow, being 

 of greatest width a little below half its length ; outer lip strongly 

 thickened and inflected, the thickening commencing at the end 

 twist of the columella, running round the broadly open anterior 

 canal, thence ascending a little more than half way above the 

 suture of the penultimate whorl ; outer lip regularly and uni- 

 formly denticulate within ; columella with about three strong 

 plaits, two prominent denticles at the posterior end of the inner 

 lip, whilst the whole space between is regularly and minutely 

 denticulate. Shell opaque, milky white in colour, but some 

 examples are somewhat translucent through the thin part of the 

 body whorl ; a thin band of a violet-brown colour encircles the 

 shell on the shoulder a little below the suture, and terminates at 

 the thickening of the outer lip, there is also a small streak of the 

 same colour about half way down the slope of the body whorl, 

 and another in the concavity behind the thickened margin of 

 the anterior end, this latter sometimes extends round to the 

 columella. 



Dimensio?is. — Length, 5 mm.; breadth, 3-25 mm.; length of 

 aperture, 4-25 mm.; breadth of aperture, -5 mm. The foregoing 



