BIHANG TILL K. SV. VRT.-AKAT). irANDL. BAND 13. Al I). IV. N:0 5. 135 



TUYN '), who publisiliecl iin original ligure of u small specimen, 

 and in 1775 by Statius Muller-), who copiod it and in his 

 turn referred to Knorr's-^) figures, evidently of some Ecliino- 

 nietra, and suck was also the view taken in 1778 by Le^kk*), 

 w]\o altered the uame to ("idaris rupcstris, — all of them 

 beino- persuaded that thev had before their evcs the true Echinus 

 saxatilis of ]^l\n.eu8. Biit at the same time O. F. Muller-^). 

 in 177(), and (J. Fabricius''), in 1780, had conferred that name 

 iipon the (ireenlandic Strongvlocentnis droebakensis, widely 

 distribiited in the north, and they Avere followed by Nilsson^), 

 in 1817, while Gmelin^j in 1788 took vipon himself to render 

 the confusion irremediable by exchanging the diagnosis given 

 by LiNN/EUS for a new and entirely different one of his own 

 making, thus causing Tiedemann^) in 1817 to bestow the name 

 saxatilis L. on the E. lividns Lamck. of the Mediterranean, 

 ■\vith whieh Lamarck himself") in 1816 had tlionght of aspo- 

 eiating that supposed Linnean species. 



The habitat, »Mare Mediterraneum», aiven to the E. saxa- 

 tilis in both editions of the S. N., may liave had its share in 

 this drearv eonfusion. It scems a mystery wlience it has erept 

 into that work. By the not depressed but prominent region of 

 the »centrum», by the presence of two, not of four series of 

 interradial primarv verrucie, as by other eharaeters, the rare 

 Centrostephanus longispinns Fhiliiti deviates from the deserip- 

 tion too widelv to be thoiight of. It appears to me verv likely 

 that the >^M. Meditcrraneum> is a eopyist"s blunder for »M. Me- 

 ridionale-, the name used for the South Sea at No IG. 



Diartema saxatile L. 



ScHYNVOET in Rlmi'H. Ainb. t. XIV, f. B, orig.. 1705. — Petivek, 

 Diadema turcariim. Aiub. 1. VIII, f. 5, imit. KuMPU., 1713. — Sloane, 

 Jain., II. p. 267, 1. 243. orig.. 1725. — Schynvoet, Diadema tur- 

 ca»nn, Tlies. iinag. t. XIV, f. B. rep. Rumph., 1739. — it'AuGEN- 

 viLLE, Conclnl.. ed"^ 1, t. 28. f. E. orig.. 1742: ed. 2, t. 25, f. D, 

 orig., 1757. — (AiBErn' pe Lachksnaye des Bois) Klein. Ordre na- 

 turel. ]<. 232, t. XXVII, orig., 1754. 



') Natuurlyke Historie. XIV, p. 50;i. t. 114. f. 1. 

 -) LiNNÉ"s"Natursvstem. VI. p. 140, t. S. f. 1. 

 3) Deliciie, I. t. Ul. f. 8, D:^. f. fi. 

 *) Addit. p. 111, t. 5, f. fl. h. c. 

 *) ZooL Dan. Prodromus, p. iU)5. 

 "*) Fauna Groeul. p. 372. 

 ') CoUectanea, p. '.». 

 ^) Syst. Nat. ed. lo, I, vi, p. 171. 

 *•) Anatomie d. Röhren-Holothiirie etc. 

 '") Hist. An. s. v., IM. p. 50. 



