18 PROCEEDINGS OF THK MALACOLOGICAL SOCIETY. 



on the latter half of the last whorl ; suture impressed ; umbilicus 

 reduced to a mere chink; columella-margin curved; labrum acute 

 and coarsely serrated by the terminations of the revolving carinse and 

 lirse ; aperture broadly ovate; interior of shell highly iridescent, 

 showing the inverse sculpture. Alt. 14'5, diam. maj. 20 mm. 

 Hai. — Montebello Islands, Western Australia. 



PSAMMOBIA ECOLORATA, n.sp. 



Shell elongately ovate, tliin, small, white, marked with concentric 

 growth-lines and sculptured posteriorly with fine, scarcely noticeable, 

 transverse, radiate strife ; umbones small ; dorsal margin anteriorly 

 sloping, posteriorly nearlv straight; vtntral mai-gin scarcely rounded ; 



anterior side bluntly acuminate ; posterior side angled above, obtusely 

 rounded below ; pallial impression broad, elongate, extending more 

 than two-thirds of the total breadth of the shell; interior of shell 

 white. Long. 10, lat. 17"5mm. 



Rah. — Montebello Islands, AYestern Australia. 



SOLENOTELLINA HAYNESI, U.sp. 



Shell elongately ovate, almost smooth, polished, livid purple, 

 whitish in the sub-umbonal region, painted posteriori)' with two 

 pale, radiate bands, irregularl}' marked with lines of growth, and 

 here and there showing closely set, transverse, wrinkled sti'iae ; 

 iim bones small, not prominent, stained with dark purple, the stains 

 spreading on either side ; dorsal margin arched ; ventral margin 





scarcely rounded ; anterior side somewhat acutely rounded ; posterior 

 side rounded above, then angled, and sloping below ; pallial impression 

 broadly elongate, marked with almost horizontal, scratch-like striae ; 

 interior of shell minutely granulate, livid purple. Long. 14'25, 

 lat. 26"5 mm. 



Hah. — Montebello Islands, Western Australia. 



