308 SPECIES OF THE SYSTEMA. 
cabinet, where no other Mediterranean shell (and Linnzeus has 
recorded his possession of an example) agrees suitably with the 
description. 
STurvex vertagus. 
The Cerithium vertagus (Kiener, Coq. Viv. Cerit. pl. 18, f..2) 
of authors is marked for this shell in the Linnean collection. 
The Cer. procerum of Kiener has been confused with it by the 
reference to Rumphius, which must consequently be excluded. 
Lister, pl. 1020, f. 83, has been rightly added to the synonymy 
in the revised copy of the ‘Systema.’ 
Kiurexr Alico, 
The Cerithiwm Aluco (Knorr, Délic. Yeux, pt. 3, pl. 16, f. 5) 
is marked for this shell in the Linnean collection. In the 
same box with it are examples of C.vulgatum (perhaps the 
variety “‘cauda recta brevi”’ of the ‘ Museum’), hence, in all 
probability, the erroneous locality. Gualtier, pl. 57, f. G, and 
Rumphius, pl. 30, f.O, were apparently designed for Cer. nodu- 
losum, to which the description is about equally applicable. 
Bonanni, f. 83 must, likewise, be excluded from the synonymy. 
Linneus appears to have become aware that he had confused 
two species (at the least), for he has written “2” before it in 
his own copy, as was his habit in such cases. 
Murex fuscatus. 
The Cerithium radula (List. Hist. Conch. pl. 122, f. 20) of 
Bruguiére is marked for this shell in the Linnean cabinet, and 
accurately agrees with the description. In addition to the pub- 
lished synonymy, our author has correctly quoted, in manu- 
script, “ List. 122,” an important reference, for had Linneus 
designed, as some contend, the C. muricatum, he would have 
cited plate 121 of that work, in preference: that shell, more- 
