SPONDYLUS. 88 
species is present in the Linnean collection; but no specimens 
are marked. In the revised copy of the ‘Systema,’ “ Acta 
Paris, 1766, p. 524, t. 14, f. 1” and ‘ List. t. 206” are referred 
to, and the G is expunged from the published reference to 
Argenville. 
Spondvlus vegius, 
Linneus did not himself possess this shell. In his revised 
copy of the ‘Systema,’ he has again transferred hither, from the 
preceding species, the reference to the letter G of Argen- 
ville’s engraving (pl. 23), probably on account of the magnitude 
of the spines and the alleged large dimensions of the figured 
specimen. ‘This was the original allocation of the synonym in 
the tenth edition of the ‘Systema’ and in the ‘ Museum Ulrice.’ 
Little, if any, light is thrown upon the species from the few 
words of Rumphius respecting the “ Ostrewm echinatwn maxi- 
mum” (No. 8). 
The shell figured by Chemnitz (Conch. Cab. vol. vii. pl. 46, 
f. 471) for the Spondylus regius of Linngus agrees most fairly 
with the language of the ‘Museum Ulrice,’ and is almost 
universally accepted as a correct identification. 
Spondvlus pitcatus. 
The Spondylus plicatus of Linneeus is the acknowledged type 
of the genus Plicatula, yet from which of the members of that 
genus the description was originally drawn up is by no means 
determined. The West Indian species, being the more common, 
has usually been supposed to be its representative, an idea not 
borne out by critical examination. For the locality, which 
assumes importance, when not derived, as too usual, from the 
works referred to in the synonymy, and though subsidiary to 
the diagnosis, of use in further limiting a too briefly defined 
species, points out to us an Oriental shell (“Java”): the omis- 
sion of reference, likewise, to the tolerably accurate figure of 
