MOLLUSCA — HEDLBY. 329 



Plentiful at 63-75 fathoms off Port Kembia ; 41-50 fathoms off 

 Capo Three Points ; and 5 t-5i) fathoms off Wata Mooli. 



GASTROPODA. 



Order DIOTOCARDIA. 



Class ZYGOBRANCHIA. 



Familij SCISSURELLID^. 



S C H I S i\I O P E, Jeffreys. 



SCHISMOPE ATKINSONI, Ten. Woods, sp. 



Scissurella atkinsoai, Ten. Woods, Proc. Roy. Soc. Tas., 1876 

 (1877), p. 149. 



Schismope carmaire, Watson, Chall. Rep., ZooL, xv., 1886, p. 119, 

 pi. viii., f. 6. 



Station 49. 



Two specimens from 63-75 fathoms off Port Kembia. 



SCISSURELLA, UOrUgny. 



SCISSURELLA AUSTRALIS, sp.nov. 



(Fig. 63.) 



Station 49. 



Shell large, thin, trochiform, spire gradate, base tumid, narrowly 

 perforate. Colour white. Whorls five. Sculpture : the upper 

 surface of the last whorl has about 64 curved oblique lamellate 

 riblets; on the spire the ribbing is finer and closer and is crossed by 

 fine spiral threads which appear on the lower whorl in broken 



