320 PROF. T. E. JOIfES ON THE OSTEACODA 



SJiotover and Netherfidd Specimens. — In 1878 (Geol. Mag. dec. 2, 

 vol. V. pp. 103—109, pi. 3. figs. 3-10) I described and figured some 

 Ostracoda from the Ironstone of Shotover Hill, near Oxford. These 

 include both Wealden and Purbeck species. Some of the specific 

 determinations require revision. Candona PMIIijosiana (p. 108), 

 fig. 3, seems to be a good species ; but I failed in my endeavour to 

 fijx the Cypridece figured as 5, 6, and 7 ; for fig. 6 is in all essentials 

 equivalent to the Purbeck species, C. granulosa (Sow., in Pitton, 

 which I now find has the heah and notch), being granulated at the 

 ends and not in middle, and it was badly grouped with the spinose 

 valves (with sharp tubercles), figs. 5 and 7 ; nor was the collocation 

 of fig. 4 (a coarsely tuberculate form) with these correct. They are 

 all called verrucosa (pp. 108, 109), but the last may weU be the type 

 of the species, the intensity of its warty ornament having caused it 

 to be regarded as the strongest, or var. crassa (p. 108) ; whilst the 

 spiny valves are not truly verrucose or warty, and the slightly 

 verrucose fig. 6 must go to C. granulosa (Sow.), since the latter is 

 found to be really a Cyp-ndea. I now find specimens like figs. 5 

 and 7 in the Wealden shales of Sussex, and propose to call them 

 C. acuJeata. 



Pig. 8 and fig. 1 of Pitton's pi. 21 (which latter is not " valdensis,'* 

 though called so by him and Sowerby) were treated by me, in the 

 paper referred to, as Cypridea Austeni (pp. 109, 110, 277). Pigs. 9 

 and 10 were named by me G. hispinosa ; and this seems to be a 

 permanent form, having representatives in the Sussex Weald. Pig. 11 

 is an outline of the common 0. valdensis, like that of Kent and 

 Sussex. 



Of the other Ostracoda in pi. 3, Geol. Mag. 1878, figs. 12-16 were 

 from the "Subwealden Boring" at jS'etherfield, near Battle, in Sussex. 

 Pig. 12 is probably a Bariuinula, near to D. leguminella (Porbes) ; 

 figs. 13-15 are Cypridea piunctata (Porbes), not " valdensis,'' p. 110 : 

 and fig. 16 is C. gramdosa (Bomer and Dunker), p. 110, but, for 

 convenience of nomenclature, now named DunTceri : all from the 

 Upper Purbeck. 



The Shotover species will therefore stand thus : — 



Pig. 3. Candona Phillipsiana, Jones. 



4. Cypridea verrucosa, Jones. 



5. 7. acideata, Jones. 



6. granulosa (Sow.). A characteristic Mid- Purbeck 



species. 



8. Austeni, Jones. 



9, 10. hispinosa, Jones. 



11, valdensis (Pitton). 



Those from the boring at IS'etherfield thus : — 



Pig. 12. Darwinula ? 



13, 14, 15. Cypridea punctata (Porbes). 

 16. C. Dunkeri, Jones. 



In Mr. Topley's 'Geology of the Weald' (Geol. Surv. Mem. 1875) 



