SMITH : MARINE SHELLS FROM N.W. AUSTRALIA. 



313 



The body-whoii has one more, forming the angle at the periphery. 

 Beneath this the surface is somewhat concave, and finely cancellated 

 with three or four concentric lirae and strong lines of growth. 



5. Cancellakia pallida, n.sp. Tig. IV. 



Testa parva, ovato-fusiformis, rimata, alba ; spira elongata, ad 

 apicem obtusa ; anfractus 6-7, superiores duo Iseves, giobosi, pellucidi, 

 caeteri convexi, costis arcuatis tenuibus lirisque spiralibus filiformibus 

 eleganter cancellati, ultimus costis panels, hie illic aliis majoribus, 

 instructils; apertura auriformis, longit. totius i hand aequans ; labrum 

 varice extus incrassatum, intus liris tenuibus circiter 12 omatum ; 



s 



V. IV. 





^...a^K 



\ 



Fig. I. Terebra Walkeri, n.sp. x 2. 



,, II. CoralHohia Jimhriata, A. Ad. x ' 



,, III. Monilia simiilans, n.sp. x 2. 



,, IV. Cancell aria pallida, n.sp. x 2. 



,, V. Calliostoma deceptum, n.sp. x 2. 



columella triplicata, callo libero supeme labro juncta, intus infi^a 

 suturam lira subtuberculif ormi instructa ; sutura profunda, in anfractu 

 ultimo antice fere canaliculata. Long. 10'5, diam. maj. 6 mm. ; 

 apertura 4-5 mm. longa. 



Hab. — Cassini Island, I^orth-west Australia, 25 fathoms (J. J. 

 Walker). 



In the single example of this little species the fine costae number 

 thirteen upon the penultimate whorl, and the spiral lirse about eight. 

 Here and there a few of the costse are stouter than the rest, probably 

 indicating periods of arrested growth. Yeiy fine incremental striae 

 coyer the entire surface. 



VOL. HI. — OCTOBER, 1899. 



22 



