Bl 



HÄNG TILL K. SV. VET.-AKAD. HAXUL. BAND 13. AFl). IV. N:0 5. (53 



Among thc Echiuoids marked »äNIus. Giist. Ad.» no spc- 

 cimen of this species is extant, and from tlic misplaceraent 

 on tlirec diftereut species of its printed labol it will seem 

 that it was missing already in 1790. 1''liere is a small fragment 

 entered as such already in Thunberg's list, and one entire 

 specimen, botli of tlie Echinns acutus Lamck, as also one of 

 the E. melo Lamck, all, no doubt, additions of a låter dato, 

 probably from the Museum Regis, and not the types of the 

 descriptiou which cxciudcs thcm by the worlds: »areolm ma- 

 jores undique adspersaa verrucis;. It is the only Swedisli, 

 indeed tlie only European species in the whole collection, 

 where it was no doubt representcd l)y a specimen from our 

 west coast, perliaps given by LixNN.ku.s liimself. 



Echinus csculentus L. is a north- and east-atlantic form, 

 common on the Scandinavian coasts from thc promontory o£ 

 Kixllen to Finmark; according to Lltken it reaches as far 

 north as Spitzbergen, and, according to M. Sabs, Iceland; to 

 the south, along the coasts of Denmark, Germany, Holland 

 and Grcat Britain, at least as far as the western coast of France. 

 It livcs on a rocky bottom at depths of from 5 to 100 

 fatlioms. 



Llster, the great pioueer, was thc lirst who distinguished 

 this species. Under the appellation of sesculentus» Rumphius 

 comprchcnded several East Indian species, the eggs of Avhich 

 wore reputed eatable, — those of thc Boletia pileolus seem to 

 have becu most relishcd, — and described the proper modo 

 of dressing thera. Xo ligurc accompanicd liis notes, and 

 ScHYNVOET added the figures A, B and C on t. 13, this time 

 not drawn from exotic spccimcns in the collection of d'Acquet, 

 hut, as it scems, from specimens taken near thc Dutch coast, 

 not cleaused by cooking, but with tlie dried remains of mem- 

 branes and spinary muscles fringing the tuberclcs, and with 

 thc dental apparatus preserved. It was Schynvoet's silence 

 on tliis subreptive illustration that caused LiNN.EUS to give 

 thc species a world-wide habitat. With those figures Klein 

 confoundcd tlie West Indian Tripneustes ventricosus IjAMCK. 

 Thc iigurcs given by Bastek, scarcely determinablc, are by 

 mistake quoted a second time under the E. Cidaris. 



Thc :>nomen triviale» adopted for the northern species by 

 LiNN.EUs — <]uasi lucus a non lucendo — was retained l>y 

 Pennant and Fleming, and then forgotten. Nilsson already 



