3<S0 Albanij Museuin Records. 



CYPRIOARDELLA, Hall. 



Cyju'icd rdclla fioltli^ Clai-ke. 

 PI. VIII., Fig. 3. 



This form lias some resemblance to the Lej/forhniivs ? ovatus, 

 Sharpe, Ijut from, what little can be seen of the hinge line, the 

 shell would ai)i)ear to have possessed a more complicated arrange- 

 ment than that in the (4rammysias. From its shape and ()rnamen- 

 trtion I have referred this species to Clarke's G. jjohli.'^ 



Shell obliquely oval, anterior margin rounded and merging 

 into basal margin as far as an oblique convexity from the umbo 

 outv^ards, which causes the margin to project in a rounded point. 

 Behind this the margin is carried backwards and upwards to the 

 short hinge line. Valves convex at the umbos, which rise away 

 from the hinge. Hinge line short, about half the greatest length 

 of the shell. Ornamentation consisting of somewhat regular 

 concentric furrows with fine striae between. 



Matrix a brown weathered shale, stained with black manganese 

 which coats the shell and the surface of the cleaved face of the 

 rock. 



Oat. No. 2575. Donor : Geological Commission. Locality : 

 Ezel Fontein, Ceres. 



ORTHOCKRAS, Breyn. 



There is one cast of the living chamber of Orthocrras gam- 

 kaensis in the Pain collection in the Albany Museum, but unfor- 

 tunately no specimen was sent to England when the fossils were 

 described in 1852. Nothing was known of the Bokkeveld Cepha- 

 lopods till Mr. Heed described the two species O. f/aniJiaoisis and 

 0. holikevddensis collected by myself in the Gamka Poort, although 

 a specimen of an O/ihocfras, correctly labelled, had been for a 

 long while exhibited in the Port Elizabeth Museum. The genus 

 is well represented accompanying the lower Devonian fossils in 

 North and South America, and it, apparently, also occurs in the 



'Clarke's type figure reproduced in Katzer, Amazoiiasgebiet, Leipzig, 

 1903, p. 2U7, PI. XIV.. fig. 13. 



