396 
MOLLUSCA. 
JRostellaria pes pelecani. — The Pelican’s Foot Rostellaria. 
Plate LXXXIV. fig. 25. 
Turrited, flesh-coloured or white; body and volutions longi¬ 
tudinally ribbed, and crowned with papillae; base of body 
papillose. One inch and a half long. Inhabits the European 
seas. 
TRIBE V.-CANALIFERA. 
Shell with a canal of greater or less length, situated at the 
base of the aperture; the outer lip differing little in the young 
and adult state. 
Sub-Division I.—Having a permanent varix on the outer lip, 
and varices on the spire. 
Genus 26.—TRITON.— Lamarck. 
Generic Character. —Shell ovate or oblong, with a canali- 
culated base; having alternate or nearly solitary varices, which 
are longitudinally prolonged; aperture oblong, provided with an 
operculum. 
Triton variegatum. — The Variegated Triton. 
Plate LXXXIV. fig. 26. 
Elongated, conical, tubiform ; suture of the spire crenulated ; 
pillar tip grooved obliquely; pale purple, elegantly clouded and 
spotted with brown. Sixteen inches long. Inhabits the Indian 
and American seas. 
Genus 27.—MUREX.— Linnceus. 
Generic Character. — Shell ovate or oblong, with a canalicu- 
iated base; furnished with rough spinous or tuberculated varices, 
in each volution of the spire, the lower ones uniting with those 
above forming continuous rows; aperture with a corneous 
operculum. 
Murex spiralis. —The Spiral Murex. 
Plate LXXXIV. fig. 27. 
Body roundish; separated from the spire by a narrow ridge ; 
spire depressed ; upper volutions rounded, and terminating in an 
obtuse apex; canal very long and curved; flesh-coloured, sub- 
