152 PROCEEDINGS OP THE GEOLOGICAL SOCIETY. [Feb. 6, 



fauna is well represented in New Zealand, there is presumptive 

 evidence that the strata which in that island are superior to the 

 latter are of Jurassic age. 



Log. Sunday's River Mouth (Eubidge). 



Alaeia coron-ata, spec. nov. PI. VII. fig. 7. 



Shell fusiform, whorls 5 or 6, each with an ..acute, undulate, 

 spinous, mesial carina ; the last whorl with 2 subordinate, obtuse 

 carinse, which are somewhat rugulose, not spinous ; whorls with 

 alternately large and small transverse rugulose striae, crossed by very 

 fine oblique striations. 



The wing and digitations are not preserved in this unique spe- 

 cimen. 



Dimens. Length (excluding canal) 1| inch, breadth (without the 

 wing) 1 inch. 



The genus Alaria *, eminently, but not exclusively, characteristic 

 of the Jurassic rocks, contains no known species which can be con- 

 founded with the present one. 



Log. In light-grey sandy sheU>rock on the Sunday's Eiver, 

 associated with Ammonites subanceps. 



TUREITELLA EuBIDGEANA, SpCC. UOV. PI. VIII. figS. 6 a, 6 h. 



Shell turreted, spire elongated ; whorls 8, angular ; suture deeply 

 impressed. Upper half of each whorl with two mesial carinse, the 

 superior carina tuberculate, the inferior one imperfectly so. Each 

 whorl is ornamented with about twenty elevated oblique ribs, which 

 proceed from the suture to the tubercles of the upper carina, are 

 continued longitudinally to the ill-defined tubercles of the lower 

 carina, and are there lost. The lower half of the last whorl with 

 three or more angular carinse. 



Dimens. '35 inch in length ; breadth of last whorl .125 inch. 



Log. Several specimens, collected by Dr. Rubidge in a very 

 sandy sheU-band, with Ostrea, Astarte, &c., at Bethelsdorp Salt-pan. 

 These belong to the " Lowest Strata of the Zwartkop Crag," pro- 

 bably a part of the " "Wood-bed series " (see p. 149). 



Patella capeeata, spec. nov. PI. VII. figs, la, Ih. 



Shell interruptedly conical ; apex obtuse, excentric, and inclined 

 to one side ; the base is elliptical, and the periphery is irregular and 

 slightly sinuated ; ornamented by numerous radiating ribs, which 

 are a little irregular in direction, and appear but as wrinklings of 

 the surface, crossed by close-set lines of growth, conformable with 

 the edge of the shell, adding to that appearance which I have 

 sought to express by the specific title, Ga-perata. 



* In a sliort paper published in ' The Geological and Natural History Ee- 

 pertory,' on the so-called Bostellarics of the British Cretaceous Eocks, I have 

 referred three species to the genus Alarm ; Zekeli and Stoliczka enumerate five 

 species from the Gosau formation as belonging to this genus ; and thus eight 

 species have been recorded from beds of Cretaceous age. 



