82 
Trechita radians. 
Crepidula dilatata. 
Fissurella, many sp. 
Liotia Cobijensis. 
Gadinia Peruviana. 
Littorina Peruviana. 
- araucana. 
Rissoina Inca. 
Cancellaria buccinoides. 
Sigaretus cymba. 
Fusus Fonutainei. 
Murex horridus. 
Ranella ventricosa. 
Triton scaber. 
Oliva Peruviana. 
Rapana labiosa. 
Mounoceros giganteus. 
~ crassilabris. 
s acuminatus. 
Purpura chocolata. 
Concholepas. 
Mitra maura. 
Terebratella Fontainei. 
Chilensis. 
Discina lamellosa. 
3» levis. 
MANUAL OF THB MOLLUSCA. 
Solen gladiolus. 
Solecurtus Dombeyi. 
Mactra Byronensis. 
Mesodesma Chilensis, 
Cumingia lamellosa. 
Semele rosea, &c. 
Petricola, many sp. 
Saxidomus opacus, &c. 
Cyclina Kroyeri. 
Venus thaca. 
Crassatella gibbosa. 
Nucula, many sp. 
Leda, many sp. 
Solenella Norrisii. 
Nassa dentifera. 
Columbella sordida. 
Pholas subtruncata, &e. 
Lyonsia cuneata. 
Lithodomus Peruvianus. 
Saxicava solida. 
XY. MAGELLANIC PROVINCE. 
This region includes the coasts of Tierra del Fuego, the Falk- 
land Islands (Malvinas), and the mainland of South America. 
from P. Melo, on the east coast, to Concepcion, on the west. It 
is described by M. D’Orbigny and Mr. Darwin (Journal, p. 177 
et seq.). Philippi also has given attention to it; he assigns 88 
species to the district near the Straits of Magellan. Only 16 
species are known from the Malvinas, and 11 of these have not 
been met with elsewhere. The southern and western coasts are 
amongst the wildest and stormiest in the world; glaciers in 
many places descend into the sea, and the passage round Cape 
Horn has often to be made amidst icebergs floating from the 
south polar continent. The greatest tides in the straits amount 
to 50 feet. ‘‘In T. del Fuego the giant sea-weed (Macrocystis 
pyrifera) grows on every rock from low-water mark to 45 
fathoms, both on the outer coast and within the channels; it 
not only reaches up to the surface, but spreads over many 
fathoms and shelters multitudes of marine animals, including 
beautiful compound Ascidians, various patelliform shells, Trochi, 
naked mollusca, cuttle-fish, and attached bivalves. The rocks, 
at low water, also abound with shell-fish which are very dif- 
ferent in their character from those of corresponding northern 
latitudes, and even when the genera are identical the species are 
of much larger size and more yigorous growth.”’* 
Shells of the Magellanic Province (* Falkland Islands). 
Buccinum antarcticum. Monoceros imbricatus. Trophon Magellanicus. 
a Donovani? “p glabratus. Voluta Magellanica. 
Bullia cochlidium. 5 calvar. »  ancilla. 
* Shell-fish are here the chief support of the natives as well as of the wild animals. 
At Low’s harbour a sea-otter was killed in the act of carrying to its hole a large 
Volute, and in T. del Fuego one was seen eating a cuttle-fish—Darwin. 
