128 SPECIES OF THE SYSTEMA. 
species from that figured: this throws a slight doubt upon the 
shell to be chosen for Linneus’s A. plicatella, but the expres- 
sion “‘strie in plicarum cavitatibus” isso exactly applicable to the 
shell figured, which is smooth at the top of the ribs, while in 
the interlineatus the ribs are entirely covered with strie, that we 
must adopt the former for the veritable species. JI am not 
certain it has ever been delineated, unless Dalman’s Delthyris 
cystena, found in the Silurian Rocks of Gothland, should be 
identical with it. The Terebratula plicatella of Dalman be- 
longs to another genus, as also does the 7’. plicatella of the 
‘ Mineral Conchology.’ (Sharpe MSS.) 
My. Salter, in the ‘Memoirs of the Geological Survey,’ has 
considered the distinctions between interlineatus and plicatella 
proper to be of mere varietal importance. 
Anonita crispa. 
“ T cannot find a specimen in the Linnean cabinet to which 
the whole of the description will apply. The Swedes (Wahlen- 
burg, Nilsson, Hisinger) have handed down so many of the 
fossil species of our author in an unbroken chain of tradition, 
confirmed in so many cases by the types in the collection of 
Linneus, that the Spirifer, recognised by them (Terebrat. 
crispa, Hisin. Vet. Acad. Handl. 1826, pl. 7, f. 4.—Delthyris 
crispa, Dalman, Vet. Acad. Hand. 1827, pl. 3, f. 6: Hising. 
Lethxa Suecica, pl. 21, f. 5.) for this species of Anomia, may 
be accepted as such with some degree of confidence.” (Sharpe 
MS.) This opinion is in harmony with that of Mr. Davidson. 
Anonrta lactwosa. 
The shell contained in the box marked for this species in 
the Linnean collection agrees tolerably with its description, 
and proves to be the Anomites lucwnosus, Wahlenburg, Nova 
Act. Soc. Ups. 8, pl. 6, 7, n. 12.—Terebratula lacunosa, Dal- 
man, Vet. Acad. Handl. 1827, pl. 6, f. 1: Hisinger, Lethea 
Suecica, pl. 28, f.8.—T7'. Wilsoni, Sowerby Min. Con. pl. 118, f. 3; 
