174 SVEX LOVEN, ON THE ECIIINOIDEA DESCRIBED BY LINX.flUS. 



15. ECHINUS RETICULATUS L. 



EcHiNUS planiusculus ovatiis integer: ambiilacris qui- 

 nis ovalibus, superficie reticulata. 



S. 3f. ed. 10, 1758. M. L. U. 1764. S. N. ed. 12, 1767. 



Sloane, Jani. 2, p. , t. 243, f. 7—10. 

 GuaUieri, test. t. 110, f. D. 



S. N. ed. 10 et 12. 



Habitat in O. Americano. 



This species is not in the Lectures of 1752; it was added 

 to tlie Cabinet afterwards, probably in 1754, by Dahlberg, 

 together with the two otlier common West-Indian species: E. 

 Lucunter and Brissus columbaris. There is no description ap- 

 pended to the diagnosis in the M. L. U., where also the dia- 

 gnosis is perverted by a serious misprint: »niger» for ånteger», 

 rightly given in both editions of the S. N. 



in the collection a specimen is preserved of the verv 

 common West Indian species generally known by the name 

 of rosaceus. It is placed in the same box with the foregoing 

 and över it, but there is no printed label. 



In the diagnosis the third term: »integer» answers to »sub- 

 lobatus», the third term in that of the E. rosaceus, and the 

 closing words of this: ;^superficie punctata», correspond to 

 »superlicie reticulata» in the E. reticulatus. The difference in 

 the sculpture of the surface is, however, very slight, the tu- 

 bercles being perhaps somewhat more crowded in the E. reti- 

 culatus, in particular, as usual, on the ventral side and near 

 the margin, where the reticular disposition of the granula 

 raarking the deepened scrobicules is rather more distinct. 



Of the two references the one to Sloane only holds good, 

 and it is worth remarking that in the M. L. U. 17(54 this is 

 given: »fig. 7, 8, 9, 10», but in the S. N. ed. 10, 1758: »f. 7—10», 

 the refercnce in extenso at the former place suggesting that 

 LiNNJiUS already in 1754 inserted the two new species of 



