68 SVEN LOVEN, ON THE ECHINOIBEA DESCRIBED BY LINN^US. 



3. ECHINUS SPHJiROIDES L. 

 Tal». 2. 



EcHiNus hernisphsericiis, gibbus, ambulacris denis, areis 

 undique muricatis: niedio porosis. 



S. N. ed. 10 et 12. 



Habitat in Oceano Indico. 



Testa hemisphserico-globoöa. 



Ambulacra 10, pororum multiplici serie, in singula 

 poris sex. 



AREOLiE major es ad latera et basin miiricata' pinictis 

 majoribiis prominentibiis. 



Discus etiam adspersus piinctis minoribus pro- 

 minentibiis. 



Linea longitudinaliter flexuosa inscidpta, ad cujus 

 angidos puncta semipertusa. 



Areol^ minores duplo angustiores, cseterum easdem. 



The S. N. ed. 10 and 12 have »hcmisphserico-gibbosus», 

 the M. L. U. »liemisphncrico-gibbus» ; in the S. N. ed. 12, the word 

 »areis» is left out. Tho Lecture has »hemisphaericns, gibbus», 

 and LiNN^us added viva voce: »has spines all över the elevations». 

 While of the E. globulus it is said : »discus longitudinaliter glaber», 

 it is here stated that the discus of every interradium is strewn 

 with smaller tubercles, Avliile the sides have them larger. 

 The pedicellar pores are three, disposed in transversal rows. 

 The cxcellent dcscription agrees entirely with a spccimcn 

 marked »Mus. Gust. Ad.», undoubtedly the type of 



