104 SPECIES OF THE SYSTEMA. 
Ostrea minuta. 
Our knowledge of this Pecten (no doubt exists as to the 
modern genus in which the species should be placed) is 
confined to the brief account of it in the ‘Museum Ulrice,’ 
to which work Linneus, who did not himself possess a 
specimen, has referred us even from the beginning. Judging 
from the description it was probably a young shell, and as the 
definition is so utterly inadequate that no writer has ever 
pretended to recognise it, the removal of the name from our 
catalogues is much to be wished for. 
Ostrea pleuronectes. 
The Pecten plewronectes (Chemn. Conch. Cab. vol. vii. pl. 61, 
f. 595), of which a specimen still remains in the Linnean 
cabinet, and alone of its contents agrees with the definition, 
has been universally accepted for the species intended by our 
author, since all the four cited engravings are admitted to be 
designed for that abundant Chinese shell. ‘‘ Hee non plicata 
est” is the manuscript remark in the revised copy of the 
‘Systema.’ The “radiis 12 duplicatis” is important for 
distinguishing the shell from its closely allied congener 
Japonicus. 
Ostrea radula. 
In the tenth edition of the ‘Systema,’ Rumphius, pl. 44, 
f.D, and its copy in Klein (pl. 9, f. 34) were inadvertently 
cited for a species (“‘radiis 12”), to which they bear no resem- 
blance; the references were removed in the final edition to 
Ostrea lima, and the present citation substituted. The name 
radula, though appertaining properly to the former figures 
only, was still retained and appended falsely to the changed 
letters. In his own revised copy Linneus has erased the 
