WORMS. MOLLUSCA. 52. Echinus, IJ9 



a. &£« Ma/! 3. /«£. \o.fg. 22. 



5. Of one colour. Klein echinod* ed. Lesk. tab, 26. B, C, 

 Sloan Jamaica. 2. tab. 242. £g. 3 — 5. 



6. Ovate. A7«« echmd. ed. Lesk. tab. 3 8. fig. 4. 

 D*//V. nat. fel. l' p. 91. /«£. D, i./jg". 13. 



7. Carinate. iv/««. *</. Lesk. tab. 45. fig. 4> 5» 

 Seba Muf. 3. /«£. 14./^. 3, 4. 

 GW/. /<?/?. /a£. 108. fig. G, G, 



i>. Very large. Seba Muf 3, tab. 14. fig. 5, 6, 

 Gualt. ind. tell. tab. 109. fg, B B. 

 Inhabits Mo/? &*j : pale fulphur when frefh % 

 IShell a. little heart- ihaped, gibbous at one end, and marked with 



a deep groove at the other: f pines ilender, rcfembljng brililes; 



moll remarkably fragile. 



4, Ovate ; the avenues not grooved. 



foides Oblong; with 4 biporous ovate lanceolate avenues united 

 bv tranfverfe grooves, with larger tubercles placed 

 arch-wife between them. 

 Klein echinod. ed. lesk. p. 2^7. tob. 27, B. 

 Aldrw. Muf. Met. p. 455, fig. 11. 

 Scilla corp. Mar. tab. 1 o. fig. 1 . 

 Bretn. ecbin. tab. J[.fg. 3. •? 

 Walcb. dilwv. Monum. tab- E, iii, fg. 5. 



Found frequently in a foffile Mate : affulate, rough wiih granu- 

 lations: mouth kidney-fhaped and furrounded with a pepta- 

 gonol liar of pores. 



Mres Convex, with 4 biporous petal-fhaped avenues not united. 



Klein echinod. ed Ink. p 252. tab. 49. fig. 1 2, 1 3. 

 Seba MuJ. 3. tao. 1 5, fig. 27, 28. 



Inhabits refemble? the lall, but the mouth is broader, and 



there is a carinate line perforated with pores each iide defcen r 

 ding from the crown. 



?W Above convex pun&nrcd pliye, with a double naked bancf 

 reaching rrorn the rnputh to the bent. 

 Klein ecbin. ed. Lesk. p. 252. tab. i^fig. f, g. 

 Seba Muf 3. tab. l$.fig. 31,32. 

 Inhabits — -~<Shell witn 4 iteliate rays above. 



'mjgdala Refembing an almond in figure. 



Inhabits-^— Klein, ed. Lesk. tab. 24.fg.j1, U 



