125 



8. E. piistulosiis. — Hemispherical and depressed ; larger 

 areas with medium-sized tubercles, begimiing at the ends 

 with, and extending in the middle to six, in transverse 

 rows ; smaller areas with two longitudinal rows of smaller 

 tubercles ; ambulacra with four or five pairs of rows of 

 pores, wide towards the mouth ; the mouth large, widely 

 sinuous ; vent small. Recent. — Leske ap. Klein, Tab. xi. 

 fig. A. B. C. D. 



9. E. graiiulatus. — Suborbicular, slightly angulated ; 

 larger areas with seven rows of smallish tubercles on each 

 side, leaving a space in which the joining of the assulas'is 

 seen ; smaller areas with four rows on each side ; ambulacra 

 with pores in three pairs of rows, disposed in quincunx 

 order ; mouth rather small, slightly waving ; vent circular. 

 Recent. — Leske ap. Klein, Tab. xi. fig. E. F. 



10. E, fe55e/aifz«5.— Suborbicular, slightly conical ; areas 

 showing the assulae, and bearing slight traces only of a row 

 of tubercles ; ambulacra with two rows of closely-set pores ; 

 mouth circular, small, and turned inwards ; vent small. 

 Fossil. — Leske ap. Klein, Tab. xi. fig. G. 



11. E.hotryoides. — Subglobular ; larger areas with two 

 rows of largish tubercles ; those of the smaller not disco- 

 verable with precision ; but these areas are more raised than 

 the larger : ambulacra with two rows of transversely bent 

 lines of pores. Fossil. — Leske ap. Klein, Tab. xi. fig. H. 



12. E. toreumaticus. — Nearly hemispherical ; vertex 

 rather raised ; areas with two rows of tubercles with crenated 

 margins surrounded by granular tubercles, almost to the 

 ambulacra. The larger areas have four rows of excavated 

 transverse lines, two of which lie nearest to the ambulacra, 

 and separate them from the largest tubercles, and two are 

 placed within the rows of tubercles ; the outer and inner 

 rows of lines are opposed to each other, alternating with the 

 tubercles, whilst the inner adjacent rows alternate with each 

 other. In the lesser areas only two rows of lines are placed 



