148 



4. Cominella pumila, spec. nov. Plate iv., fig. 12. 



Shell very small, tliin, ovate ; whorls five, convex, apex 

 mamillate ; the whorl next the puUus smooth, the next twa 

 ornamented with narrow, close, wrinkle-like transverse ridges, 

 which on the last whorl are confined to the posterior one-third^ 

 rest of the whorl inornate. 



Length, 5 ; breadth, 3 ; length of aperture and canal, 3' 5. 



Localitjj. — Clayey green sands, Adelaide bore. 



This little fossil has a general resemblance to Ci/llene 2?homhea,. 

 but wants the distinctive characters proper to that genus. 



5. Cominella Clelandi, spec. nov. Plate xi., fig. 1 ; plate xiii., fig. 1. 



Shell of the shape and style of ornament of TropJion Flindersi^ 

 but with the aperture of Cominella ; posterior whorls with about 

 ten costfe, spirally lirate, last whorl convex, roundly shouldered, 

 costaB obliterated. 



Length, estimated, 35 ; breadth, 22 ; length of aperture, 24. 



Locality. — Upper Aldinga series of beds at Hallett's Cove^ 

 collected by Dr. Cleland, Hon. Sec. of the Society, after whom 

 the species is named. 



GEiN'US Btjcciis'um. 



1. Buccinum fragile, T. Woods, Proc. Hoy. Soc, Tasm., for 

 1876, p. 107, from Table Cape, is unknown to me. 



G-ENrs Pasciol^eia. 



STJTOPSIS OF SPECIES. 



"Whorls rounded, costated 



Ovately fusiform, costce broad, lir?p many. 



1. F. Tenisoni.^ 

 Lanceolately fusiform, costse broad, jira* few. 



2. F. exilis. 

 Elongate-fusiform, costse narrow, angi.lar. 



3. F. concinna. 

 "Whorls angularly convex, nodulated on the angulation. 



4. F. decipiens. 

 "Whorls medially raised into a crenately incised keel. 



5. F. cristata. 

 "Whorls shouldered, costulated in front. 



Elongate-fusiform, last whorl of moderate size, canal 



nearly straight. 6. F. crypoploca. 



Last whorl ventricose ; canal twisted. 7. F. rugata. 



1. Fasciolaria Tenisoni, T. Woods. 

 Fasciolaria Tenisoni, Tenison- Woods, Proc. Lin. Soc, X.S.W.,. 

 vol. iv., p. 13, tab. 3, fig. 3, 1879. 



