Zoological Society. : 131 
Hab. Island of Cagayan, province of Misamis, island of Mindanao, 
Philippines (found on the beach); Cuming. 
Mr. Sowerby referred this extraordinary shell with some doubt to 
the Murex acanthropterus; its proportions are however so utterly 
different that I have no hesitation in describing it as a new species. 
Murex ampieuus. Mur. testé globosd, subpyriformi, transversim 
liratd, liris irregularibus erectis, interruptis ; octofariam varicosd, 
varicibus frondosis, frondibus alternis vel paucioribus elato-ramo- 
sis, spinosis, basalibus longioribus ; albd, frondibus lirisque aterri- 
mis, labri columellari parte superiori nigro tinctd; canali brevi- 
usculo, 
Hab. ? 
Three species appear to have been confounded hitherto under the 
common title of Murex radix, which, though closely approximating, 
‘may be separated without difficulty with a little careful discrimina- 
tion. ‘The true Murezr radix is a round, particularly solid, heavy 
shell, with a short though sharply acuminated spire with never less 
than ten varices, in which the fronds are numerous, somewhat late- 
rally compressed, comparatively short and sharp-pointed. The spe- 
cies described by Dr. Philippi under the title of Murex nigritus has 
but eight or nine varices, and the fronds are not branched ; those on 
the upper angle of the whorl being tubercularly squamate, those in 
the middle flat and very obscure, whilst those at the base are long 
and horn-shaped. In the species under consideration the shell is of 
‘somewhat light structure, and the fronds are large, open and flowery. 
Murex tTrirormis. Mur. testd trigono-ovatd, crassiusculd, trans- 
- versim liratd et corrugatd, tuberculis duobus aut pluribus inter 
varices ; trifariam varicosd, varicibus laminato-fimbriatis, superne 
exrcavato-sinuatis ; ferrugineo-fuscd ; aperturd ovatd, superne si- 
nuatd. 
Hab. New Holland. 
_ This shell, which Mr. Sowerby thought to be a variety of the 
Murex acanthropterus, is of a rude solid structure and dark rusty 
brown colour. 
Murex pettucipus. Mur. testd trigono-fusiformi, tenui, trans- 
wersim_liratd, pulcherrime_squamatd, inter. varices tuberculatd ; 
trivaricosd, varicibus obliquis, latissime et eximie alatis ; pellucido- 
albd ; aperturd parva, labro intus nodoso. 
_., Hab, Island of Bantayan, Philippines (found upon a coral bottom 
at the depth of seven fathoms); Cuming. 
Mr. Sowerby has rather incautiously referred this shell to the Mu- 
rex trigonularis of Lamarck, which Mr. Gray considers to be merely 
a worn specimen of the Murer acanthropterus, and M. Kiener one 
of the Murex phyllopterus. The shell under consideration differs 
essentially from both of these, and the characters which it presents 
are not at all in accordance with Lamarck’s description of Murer 
trigonularis. 
Murex ossrus. Mur. testd oblongo-ovatd, subfusiformi, levius- 
