132 SPECIES OF THE SYSTEMA. 
the name for our North British shell, avoid further confu- 
sion of nomenclature ; or to yield it to the species actually 
delineated by Linneus? This must be left to the judgment 
of naturalists, whose verdict must be influenced by the correct- 
ness of Columna’s figure; since, if no positive determination 
of the species represented in that work can be arrived at, it is 
clear that there was no definition at all in the earlier edition. 
Awomta terebratula. 
The A. terebratula first appeared as a fossil species in the 
tenth edition of the ‘Systema,’ with a synonymy from which 
Lister must be erased, since his figure does not answer to the 
description. Klein’s shell (copied from Columna) is called 
Terebratula as a generic appellation ; hence, probably, the use 
of that name as a specific epithet by our author. These figures, 
though not opposed to the language of Linneus, are rude, and 
perhaps irrecognisable, yet one might fancy that the combined 
pictorial and descriptive definition was adequate for the recog- 
nition of the species, since Lamarck has indicated Klein’s 
figure as the sole vepresentation of his Ter. Kleinii, which latter 
is thought by Mr. Davidson, from personal examination of the 
Lamarckian type, to be a biplicated variety of the Ter. pero- 
valis. Now Mr. Davidson, who has likewise examined the 
Linnean collection of Brachiopodes, considers the specimen (an 
Oolitic fossil), which best answers to {the Linnean description, 
and is somewhat like the figure referred to, to be apparently a 
variety of 7’. perovalis, intermediate between the typical form 
and 7’. Phillipsvi, and approaching, likewise, some individuals 
of T’. intermedia, that are almost indistinguishable from cer- 
tain specimens of perovalis. The coincidence is a curious one, 
and certainly favours the idea of the supposed identity of T. 
Kleinii with the Linnean species. 
In the ‘Fauna Suecica’ (ed. 2), where the same diagnosis 
appears, but with the erroneous and discordant citation of 
Lister only, a recent Anomia terebratula is indicated as inhabit- 
ing the Norwegian sea; no further particulars, however, are 
mentioned by Linneus, who probably determined his species 
