WORMS. MOLLUSC A. 52. Echinus. i$j 



Inhabits Indian Atlantic and European Seas. 



Shell witfc a purpiilh top: /paces tutnrculate in waved, rows; the 



lower vide itudded and diviued by 2 imooth fpaces : /pines 



fhort thick mixed with lon^ ones. 



c. Heart-Jhapfd; the crovm not grooved. 



Jlaaiatus. Avenues 4; with imprefled ftrias porous on each fide: crown 

 with 4 pores : fpaces 10, divided by a ferrate future ift 

 the middle and arched tranfverfe futures. 



Klein, echin. ed. Lc/k. p. 234. tab. 25 

 Walcb Monum. d/lwv.p. 182. tab. E. iv. n t 1,2. 

 ? ]?ound hitherto on!y in a foffile itate. 

 Baje flat: mouth a little kidney ihiped and furrounded with a 

 i*ubpenta;onal flar of pores: <v.nt roundifb, with 3 angles on 

 the margin ; avenues confifting of a row of pores placed clofe 

 together m pairs, each convergent on the crown. 



Purpureus. Avenues 4, petal-fhaped, lanceolate: larger tubercles placed 

 in a zig-zag manner: fpines acicuiar incurved white, 



Klein echinod ed. Leske. tab. 43.^?, 3 — 5. /« 45 ./• 5» 



jftfu/l. Zool. Dan. l. p. 17. n. 4, tab. 6, 



j4rgen<ville Conchy p. 311. tab. 2 $ fig. 3. 



HiWs Animals, tab. II, Sail- Lorp mar. tab. 11. /ig. I. 



Inhabits North Seas: above convex; the fides Hoping; fore* 

 , part with 2 projections, hind part truncate: beneath flat 1 



from the mouth to the vent a little convex and purple: very 

 finely granulate and befet with fmall fubclavate bridles, and 

 fpatulate fpines feated on white tubercles : near the vent a 

 "kidrey-fhaped ftripe of minute white granulations and fur* 

 rounded with numerous white tubercles, 



fufillus. Oval with 5 avenues: vent remote. 



Mull. Zool. Dan. 3. p. 17. tab. Qi./ig. I — 4, 

 Jnhabi\s the jsfortb Seas; very minute and diftinfr, from Jkh, 

 lacunofus ; probably not of this divifion, 



Complana- A little flattened each fide : fpaces and avenues xo* 2 of them 

 ttts. placed in the furrows of the back. 



Klein echinod. ed. Lesk t p. 238, tab. $i-*/ig» t, Z» 



Lang. lap. /ig. tab. 35 fig y l,2« 



Scheuz. lith. Hel<v. p. 6 1. fig y 84, 



Scbeuz. oryflol. p. 318. /ig. 135. 



JBreyn. echin. p, % 63, tab. 6, fig. l, 2. 



Bourg. petrif p. 76. tab. 51./^. 330*333* 334' 



found in a foflile ftate : roundifh. 



