404 SPECIES OF THE SYSTEMA. 
‘Museum Ulrice,’ since the outer lip, though more often smooth 
internally, is frequently crenated. I should have suspected, 
however, from that feature, that the N. Rumphu of Récluz 
(Chemn. Conch. Cab. v. f. 2018, 2014), might have been the 
species of the ‘Systema’ had the cited figures corroborated 
the supposition. Both species are present in the collection 
of Linneus, but the uncleaned and unworn appearance of the 
specimens of the latter seems to evince that they were of 
subsequent introduction into the cabinet. 
Sevita peleronta, 
The specific appellation was a barbaric Latinization of 
“pelorontie,” the Belgian name attached to the referred-to 
engraving of Rumphius. It was not, however, from that figure, 
which suits not the “striata” of the diagnosis, and which seems 
intended for a variety of N. polita (a shell whose inner lip does 
not accord with the expression “interiore planiusculo”), but 
through the ample details of the ‘Museum Ulrice,’ that natu- 
ralists have succeeded in identifying this peculiarly characterised 
species. The Nerita peleronta of authors (Sowerby, Genera 
shells, Ner. f. 1)is only partially marked in the Linnean cabinet 
(the writing being nearly effaced), but since, alone of those 
present, it answers to the specific descriptions, no reasonable 
doubt can be entertained of the typical authority of the ex- 
amples, one of which displays the exact colour specified in the 
‘Museum.’ 
One feels surprised, perchance, that Argenville’s figures (pl. 10, 
f. H, O) of this Nerite were not cited as illustrative; but they 
are so far from characteristic (being represented as smooth- 
surfaced), that we are only enabled to recognise them from the 
description which accompanies them. In truth, very few re- 
cognisable delineations of members of this genus are to be 
found in the iconographies consulted by our author. 
Reécluz (J. Conch.) has suggested the identity of the Linnean 
species with his N. patula. I am unable to comprehend the 
grounds of this surmise, as the latter is declared by him (Rev. 
Zool.) to be devoid of teeth upon the outer lip. 
