6 



BKITISH FOSSILS. 



2. There is another species in the Inferior Oolite of Crickley nearly of the size of the 

 E. Smithii, hut more convex above, and with the pores in much more oblique rows. (Dr. 

 Wright's Collection.) 



3. E. Bakeri. (JPedina, Wright, 1854, in Ann. Nat. Hist, vol. xiii, pi. 11. fig. 4. 

 Hemipedina Bakeri, ib. (1855), vol. xvi. p. 97.) an prcecedentis {E. Smithii) junior ? 



A smaU species, much resembling the Ech. Smithii. The round contour, and the 

 ten nearly equal distant rows of primary tubercles, will well distinguish it at pre- 

 sent. The pores being arranged nearly in single file on the upper portion might 

 be only a character derived from difference of age. 



Locality. — Infeeiok Oolite. Crickley Hill and Leckhampton, Gloucestershire. 

 [Dr. Wright.] 



One species of this section has been described from the British Tertiaries. It is — 



4. E. Edwardsii, Forbes, Monog. Ech. Brit. Tert, PaljEont. Soc. (1852), pi. 3. f. 2. 

 Morris's Catal., 2nd edit. p. 78. 



A small neat species, not half an inch broad, with narrow ambulacra, which have pro- 

 minent tubercles except quite at the top, and crowded pores, the arrangement of 

 which is such that instead of falling into ranks of threes, descending obliquely from 

 the ambulacra outwards, they form ranks oblique in the other direction, viz., 

 towards the ambulacrum. It is an unusual arrangement, and may be useful as a 

 specific character. Erom this position of the pores the avenues are broad, and 

 deducting these, the interambulacral spaces are not above twice as broad as the 

 others ("three times," Forbes), and the tubercles are larger, less closely placed 

 (about eight from the apex to the periphery), and nearly of equal size all the way 

 up, while the ambulacral ones fail suddenly, and become mere granules at the 

 upper part. The figure in the Pal. Monograph, does not express this character 

 perfectly. The surface is granulated, and there are secondary tubercles as well as 

 granules on the interambulacra, which are only smooth down the suture. 



Locality/. — London Clat. Bracklesham Bay, Sussex. (Mus. Pract. Geol.) 



J. W. S. 



.Notes on Echinopsis, hy S. P. Woodward, Esq. 



In the second edition, of Morris's Catalogue, p. 78, four species of Echinopsis are 

 enumerated, viz. : — 



E. Edwardsii, Forbes. 

 E. pusiJla, Roemer. 

 E. rotata, Agassiz. 

 E. Smithii, Forbes. 



Of these, E. rotata and E. Smithii fall into the sub-generic division Pedina of Agassiz. 

 E. pusilla was erroneously referred to the group; it is probably identical with Ech. radiatus 

 (Hoeningh.), and is known in France by the name of Temnopleurus pulchellus (Sorignet, 

 Oursins foss. de I'Eure, p. 31). It is the type of M. Haime's proposed new genus 

 Ghjphocyphus (D'Archiac and Haime's Foss. de I'lnde, I,, p. 202. Desor, Syn., p. 102.) 



E. Edwardsii agrees with Pedina in the character formerly supposed to be essential, 

 viz., the arrangement of the pores in threes; but in his new synopsis, M. Desor places 

 with Echinopsis the Tertiary species {E. Gacheti), in which, as in E, Edwardsii, the pores 

 are tripled. 



Since the publication of Morris's Catalogue, Dr. Wright has described no less than 

 fifteen additional species from the English Oolites, in which the pores are more or less in 

 single file. To these he has given the name Hemipedina (Ann. Nat. Hist, August, 1855), 

 whilst M. Desor has proposed the name JDiademopsis for the same group, in the second 

 part of his Synopsis, p. 79. Some of the species appear, too, to have been described by 

 him under other names:— 



