#504 MOLLUSCA. 
it belongs to the genus where I have placed it.” Is it the Fossar of 
Adanson ? 
Figures 274, 274 a, ventral and dorsal views of the shell, much 
enlarged; 274 6, natural size. 
Page 241. The three following species have unfortunately been 
omitted in the text, the copy having accidentally been overlooked. 
TRITON BRASILIANUM. 
Testa rhomboidea, elongata, rufescens, epidermide tenui longitudinaliter 
hic illic fimbriato induta: spira conico-turrita, anfractibus sex tabula- 
tis, supernis costis quadratis duabus ad apicem granulatis cinctis ; 
anfractu ultimo triangulart costis sex undato-nodosis antrorsum dimi- 
nuentibus cincto, in rostrum viv recurcum producto: apertura dimi- 
diam long. teste wquans, ovato-lunata ; labro valdé varicoso, costis 
supereuntibus, interspatiis fuscis, plicis geminatis albis munitis ; colu- 
mella castaned rugis albis obliquis ornatd. 
Triton Brasilianum, Goutp; Proc. Bost. Soc. Nat. Hist., ii. 142. 
May 1849. Expedition Shells, 65. 
ANIMAL with the foot oblong-oval; head broad, depressed, separated 
by a fissure from the foot; proboscis short, hardly projecting beyond 
the head; tentacles stout, conical, compressed ; eyes on a considerable 
enlargement, about half way up on the outside, siphon protruding but 
slightly beyond the shell. Body, head, siphon, &c., of a fine reddish- 
brown colour, passing to yellowish towards the margin of the foot, and 
ornamented with numerous circular or oval black spots, surrounded by 
a narrow circle of bright gold colour; the spots are larger and sparser 
on the posterior portion of the foot than elsewhere ; under side of foot 
granular, greenish yellow, with scattered black dots sprinkled over it, 
its edge finely ocellated like the body. Motions sluggish. 
Suewi of medium size, rather light, elongated, ovate-fusiform, tur- 
reted; spire conical, with about six whorls, the upper ones cylindri- 
cal, with a broad, slightly excavated shoulder to each of them, encir- 
cled with two elevated square ribs, gradually diminishing to the apex, 
