SPECIES OF THE MANTISSA. 455 
species, which followed plicatus in the revised ‘Systema,’ has 
ever been recognised. It was, perchance, a fossil. 
OsTREA PES-LUTR& was preceded by fasciata in the revised 
‘Systema.’ Gmelin has quoted the same figures for this and 
plica, and it was hence, probably, that Dillwyn surmised it to 
be an imperfect example of that well-known shell. The defini- 
tion was insufficient for a member of so large a group as 
Pecten, to which genus it assuredly belonged: some indi- 
viduals of P. Danicus, with mutilated auricles, in the Linnean 
cabinet, correspond fairly enough with it. 
AnomiaA sANpDALIuM. The Calceola sandalina of Lamarck 
was found in an unmarked box in the Linnean cabinet en- 
veloped in an engraving (Conchyta Juliacensis, Hupsch. Test. 
Petrif.) which represented it. In the same receptacle was the 
Gorophyllum pyramidale, a well-known Silurian fossil from 
Gothland, which some have fancied to be a second species of 
Calceola, but which is now known to be a coral. I am indebted 
for these names to Messrs. Davidson and Salter. 
Myrinus pHoLADIS has been generally referred to the Sazi- 
cava rugosa: the description is equally applicable to aged 
individuals of S. arctica. In either case the species had re- 
ceived an earlier designation. 
Myrinus srriarunus followed bidens in the revised ‘ Sys- 
tema.’ Schrodter’s identification (Einleit. Conch. i. pl. 9, f. 16) 
seems to have been generally accepted; the “ subtilissime 
striata,” however, hardly suits the Mytilus he has delineated. 
Cypr&aA CERVUS is generally supposed to be the same as the 
Cyprea cervina of Lamarck. 
Cyprma puNcTATA has been usually identified with the 
pretty little Cowry so designated by Reeve, in his Monograph 
of that genus (Conch. Icon. Cyp. f. 101). 
VoLutTa FILARIs, which followed rufina in the revised ‘ Sys- 
tema,’ was assuredly the Mitra filosa of Lamarck, who has 
rightly ascribed four folds to its columella. The fourth or 
lowest fold is often very obscure, hence Linneus had charac- 
terised it as ‘ triplicata.” 
SrromBus minimus. The suggestion of Deshayes that this 
name should be restored to the Strombus troglodytes of La- 
marck’s ‘ Animaux’ is now generally assented to. 
Srrompus cLAvus was undoubtedly constituted from an 
