186 SPECIES OF THE SYSTEMA. 
Cvprea caput-serpentis. 
The Cyprea caput-serpentis of authors (Reeve, Conch. Icon. 
Cyp. f. 44) is marked for this species in the Linnean cabinet. 
In the revised copy of the ‘ Systema’ 704 has been substituted 
for the previous imperfect and circuitous mode of reference to 
Lister; in the copy that belonged to the younger Linné, figure 
316 of Martini’s thirtieth plate, and plate 702 of Lister’s ‘ His- 
torie’ have been accurately cited. The plate referred to in 
Petiver’s Amboyna shells should have been 16, not 12, and in 
the synonym of Adanson, the letter G (the fifth species in po- 
sition must replace the “5”), there being no such numeral 
attached to any of the drawings. Should Gualtier’s figure O 
be designed for this species, it is a very unsuccessful represen- 
tation of it: Rondelet’s woodcut is far more characteristic. 
Cyprxa Mauritiana. 
The Cyprea Mauritiana of authors (Sowerby, Conch. Ill. 
Cyp. f. 164) is marked for this species in the Linnean collec- 
tion. The reference to Lister should have been to plate 13, 
not 8; the latter represents exanthema, which accords not with 
the description. The synonymy is otherwise correct. 
Cyprxa bitellus. 
The Cyprea vitellus of authors (Sowerby, Conch. IIL f. 66) is 
marked for this species in the Linnean cabinet, and the con- 
firmatory synonym of “Mart. Syst. t. 28, f. 228” has been 
added in the revised copy of the ‘ Systema,’ wherein the refer- 
ence to Lister has been rightly expunged. The cited drawings 
of Petiver and Bonanni, and probably, too, of Rumphius, repre- 
sent this shell: it is difficult, however, to distinguish melanos- 
toma from it in any mediocre engraving. 
