A26 SPECIES OF THE SYSTEMA. 
Lyonnet’s cabinet at the Hague: his figure has been copied by 
Martini (Conch. Cab. i. f. 163), and by Da Costa and Humphreys 
(pl. 4, f. 19). It seems passing strange and unnatural that 
the delicate Carinaria there represented (the C. vitrea of the 
Lamarckian arrangement, judging from the synonymy) should 
not have been placed with the graceful Argonauts, rather than 
with the rude Patelle; yet the shape is not dissimilar to that 
of P. tricarinata, and from the name “ Brunnich” being attached 
to the description, the account of it was, in all probability, 
communicated by that party, and not drawn up by Linneus 
himself from personal examination of the specimen. 
Patella lacustris, 
Notwithstanding the “ ovali” declared of this shell in both 
editions of the ‘Systema,’ as well as in both editions of the 
‘Fauna Suecica,’ and that harmonious correspondence of the 
cited engravings with the description which clearly defined the 
species, Miiller, whilst correctly appreciating the synonymy, 
which he has duly attached to the Ancylus designed by Lin- 
neeus, has, nevertheless, termed the latter fluviatilis, and trans- 
ferred the epithet lacustris to its greatly elongated congener 
oblongus. His example, unfortunately followed by Nilsson, 
Draparnaud, Lamarck, and by most of the Continental natu- 
ralists, has not misled Dillwyn nor the majority of our native 
conchologists. 
An examination of the cabinet of Linnzus, who has re- 
corded his possession of an example of the species, supports 
the opinion of our English writers, since the A. oblongus is not 
contained in it, and of the Ancyli there present, the fluviatilis 
of Miiller (Gray, Manual L. and F. W. Shells) alone corresponds 
with the definition. In the revised copy of the ‘Systema’ “ List. 
141, f. 39” has been added to the published synonymy. 
Patella pellucida. 
The Patella pellucida of British writers is marked (Brit. 
Molluse. pl. 61, f. 8, but the marked individual has lost its 
