104 Prof. T. Rupert Jones — Fossil Bivalved Entomostraca. 



In the Weald Clay of Kent, Sussex, Surrey, I. of Wight, and Dorset. 

 In the Hastings Sand of Kent, Sussex, and Isle of Wight. 

 In the Purbeck beds of South Wilts and Bucks.^ 



2. Cypris tubercidata, Sow. Ibid. pp. 177, 205, 228, 345, and 

 352, pi. 21, figs. 2a, b, c. 



In the Weald Clay, near Hythe, Kent ; near Atherfield and 

 Cowleaze Chine, Isle of Wight ; and at Punfield, Dorset. 



3. Cypris spinigera, Sow. Ibid. pp. 229, 345, 352, pi. 21, fig. 3. 

 In the Weald Clay of Sandown Bay and Atherfield, Isle of Wight. 



Doubtfully in the Purbeck Beds of Portland, etc. 



4. Cypris granidosa, Sow. Ibid. pp. 177, 260, 345, pi. 21, fig. 4. 

 In the Hastings Sand, Sussex ("Tilgate Forest," Mantell). 



In the Purbeck Beds of South Wilts. 



III. — Sowerby's figures, referred to above, have been copied again 

 and again, in books on geology, by Lyell, Mantell, and others. In 

 Lyell's " Elements of Geology," 1838, p. 348, figs. 184-187, wood- 

 cuts are given of Cypris spinigera, C. Valdensis, and C. tubercidata, 

 after Sowerby's engravings. 



In his "Wonders of Geology," 3rd edit. 1838, Mantell had a 

 woodcut of Cypris granidosa; and in the 7th edit, he gave figures 

 of 0. spinigera, granidosa, and Valdensis. In his ''Medals of 

 Creation," 1844, he reproduced C. Valdensis and C. granulosa, to- 

 gether with C. tubercidata, Sow., which he divided into C. Fittoni 

 (namely, fig. 2a of Sowerby's plate) and C. tubercidata proper 

 (=fig. 26, c). See also "Medals," 2nd edit., 1854, vol. ii. p. 527, 

 Lign. 174, f. 2 and 3. 



IV. — From the " Wealden " beds of Hanover, which, however, are 

 related to the Purbeck rather than to the higher series, Fr. A. Eomer 

 described and figured some Bivalved Fntomostraca in his " Die 

 Versteinerungen des norddeutschenOolithen-Gebirges: ein Nachtrag." 

 4to. Hanover, 1839. Thus : 



p. 52. — 1. Cypris Valdensis, Fitton, pi. 20, fig. 20ff, b. 



2. C. oblong a, K., fig. 21. 



3. C striatopunctata, E.., fig. 22a, b. 



4. C. tuberculata, Fitton, fig. 23. 



5. G. granulosa, Fitton, fig. 24. This difi"ers from the C. granulosa of Sow. 



and Fitton in being one of the ovate (not oblong) forms, and in having 

 a beak and notch. 

 V. — Dr. W. Dunker, in his " Monographic der norddeutschen 

 Wealdenbildung," 4to. Brunswick, 1846, gave a fuller account of 

 the Hanoverian Fntomostraca. Thus : 

 p. 59. — 1. Cypris Valdensis, Sow., pi. 13, fig. 2Qa, b. 



2. G. Icevigata, Dunker, fig. 25. 

 p. 60. — 3. C. oblonga, Eomer, fig. 24 and fig. 26«, b. 



4. G. striatopunctata, Rom. , fig. 32. 



5. G. granulosa. Sow., fig. 31«, b. 



6. C. tuberculata (?) Sow., fig. 30«, b. This differs from Sowerby's G. 



tuberculata in being ovate and notched, 

 p. 61. — 7. G. rostrata, Dunker, fig. 27. 



8. G. pinnceformis, Dunker, fig. 28. 



1 Hampshire is included in the " Hastings Sand " Column, and Kent, Sussex, 

 Hampshire, and Isle of Wight in the "Purbeck" Column of the Table, at page 352, 

 evidently from inadvertence. 



