16 SPECIES OF THE SYSTEMA. 
cabinet of Linneus, who fortunately for us possessed this spe- 
cies, removes all doubt upon the subject. One shell, and one 
only, agrees with the diagnosis: it is the fasciatus of authors 
(Sow. Conch. Ill. f. 153), and corresponds accurately to the lan- 
guage of the “Museum,” and to the figure published by 
Spengler (pl. 6, f. 2). The squamosus of authors is not present 
in the collection. 
CHttow punctatus, 
This name must assuredly be expunged from our catalogues. 
The three original references point out three species,—a Chi- 
nese, a Spanish, and an American one. The first of these, 
from which also the name was derived, is the Chiton punctatum 
of the ‘Chinensia Lagerst6miana’ (one of the ‘“ Amecenitates ” 
thus cited in the tenth edition) : the description runs as follows 
—*“ Corpus ovale, album, adspersum punctis excavatis. 'Testze 
8, transversim oblonge, lateribus rugose, fusce, limbo fusco, 
absque angulis.” Of the second we only learn from Osbeck’s 
‘ Dagbok Ostindisk Resa,’ where it is called C. leve, referring 
_ perhaps to the ligament, that it was cymbiform, with its valves 
transversely suleated. The ‘ Ephemerides Nature’ presents 
us with a meagre description and a tolerable figure: from the 
two combined we may glean the following particulars :— Shell 
subearinated, greenish, ash-coloured, and glaucous outside ; 
brown within; lateral areas marked with isolated granules (of 
which also there seem traces in the engraving upon the central 
triangles, which are termed glabrous and appear eroded) : ter- 
minal valves, one granose, the other worn smooth. Ligament 
scaly, with alternate lighter and darker bands. Length two 
inches. 
None of these descriptions are at all suitable for a smooth 
shell with excavated dots upon its hgament. The reference to 
Seba, added only in the final edition, is equally incorrect. This 
ill-executed figure exhibits a smooth-looking variegated Chiton 
(not so very unlike marmoratus or tulipa of Reeve’s Monograph) 
with a scaly margin. It is highly probable that the original 
type was an eroded shell, with its hgament apparently punc- 
tured, from being stripped of the spines or scales which once 
adorned it. 
