172 SVEN LOVEN, ON THE ECHINOIDEA DESCRIBED BY LINN.EUS. 



In the Lccture 1752 Linn^us said: »is called: rosaceus». 



The diaguosis then dictated ended with the word »ovali- 

 bus»; the two last words: »superficie punctata» were added in 

 S. N. ed 10, 1758, to distinguish this speeies from the next, 

 with which Linn.eus had become acquainted dviring the in- 

 tervah 



But at the same time, through one of his hearers, a veiy 

 serious mistake found its way into the diagnosis. 



Three MS Lectures of 1752 havc: ovatus, sublobatue, 

 biit a fourth, from mistaking the dictation: ovatus, subglobatus, 

 Avhich in the S. N. ed. 10, was emended to: ovato - subglobosus, 

 nnd in the ]\I. L. U., and S. N. ed. 12 to: ovato - subrotundns, 

 a succession of faults that goes far to prove that some one 

 of those disciples of Linn.eus who were intrusted with co- 

 pjing the schedules and seeing his work through the press, 

 in deciphering his rather illegible hand had consultcd a copy 

 like b of the Lectures, in this instance a source of wrave 

 error, and thus l)ecame guilty of this, and perhaps other 

 mistakes in the M. L. U., as wcll as elsewhere. 



The diagnosis restorcd to its true reading, as above, no 

 more points to the West Indian speeies almost universally 

 called Clypeaster rosaceus, but most decidedly to the speeies 

 of the Eastern Seas commonly named Clypeaster placunarius. 

 Of this the collection contains the specimen figvired here, and 

 there cannot be the least doubt that this, and no other, is 

 the original type described by Linn.eus. Swartz recognised 

 it and fastened to it the printed label: Echinus rosaceus. 



Clypeaster rosaceus L. 

 Tal), o, fl^. 2. 



Klein, Disp., 29, Scutuin angulare, humile, /:?., t. 19, f. A. B, 

 orig., 1734. — Gualtierl t. 110, f. A, orig., 1742. — Klein, gäll., 

 t. 10, f. /i, iinit. Klein, 1754. — Seba, Thes. t. 15. f. 11, 12, 

 orig. 1759. 



1758. Echinus rosaceus L. S. N. ed. 10, p. 665. 



^ » » 1764. I\I. L. U., p. 713. 



;> 1767. S. N. ed. 12, p. 1104. 

 Clypeaster i> {iion L.) 2. var. lineis quinque radiata^ 



1816. Lamarck, An. s. Vert. III, 

 p. 14. 



