DAPHNELLA. 61 



neiula, Montagu, which is practically synonymous with Mangelia 

 costidata, Risso, the type of the genus Mangilia {em.). Jfoue 

 of the Australian Tertiary forms now figured and described bear 

 the slightest resemblance to " Murex nebula," which Tryon ' 

 classifies with Raphitoma, Bellardi, a subgenus of JDaplmeUa. 

 Type. — Pleiirotoma lymnmiformis, Kiener. 



Daphnella sculptilis, Tate (sp). 



[Plate lY. Figs. l«-5.] 



1888. Bela sculptilis, Tate, Trans. Eoy. Soc. South Aust. vol. x. p. 173, 



pi. iv. fig. 1. 



1889. Bela sculptilis, Demiant, id. vol. xi. p. 45 (list name). 



Protoconch composed of one and a half smooth, depressed, obtuse 

 turns, the earlier portion of which is laterally disposed, and the 

 later longitudinally striated. Whorls tumid, six in number, 

 subangulate at the periphery and somewhat excavated between 

 that and the suture. The latter is canaliculate and margined. 

 Surface covered by closely -set spiral lineations, remarkably regular 

 from the brephic stage onwards, and crossed by conspicuous growth - 

 lines, which occasionally produce minute granulations at their 

 points of intersection, but are for the most part more clearly 

 defined in the sulci between the lineations referred to. Aperture 

 nearly one-half the length of the shell, narrow, obliquely 

 terminated posteriorly and curved anteriorly where a short 

 broad canal exists ; outer margin thin, moderately curved, sinus 

 broad but shallow, and occupying the whole of the sutural 

 depression ; inner margin covered by a very thin deposit of 

 enamel, best developed anteriorly ; columella twisted. 



This species, although figured, has not, apparently, been 

 previously described. 



Dimensions. — Length 47 mm.; breadth 18 mm.; length of 

 aperture 21 mm. 



Form, and Loc. — Eocene : Muddy Creek, Victoria. 



G. 4194. Three specimens. Presented hy John Bennant, Esq. 



1 Manual of Concliology, vol. vi. 1881, p. 307. 



