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attractive specimens in these cases are from the Philippine 
Islands. Some species of' Bulimus reach a length of six inches. 
They lay large eggs, which resemble those of birds ; some of 
these are shown. 
CASE 32. — Tesfacellidae; Limacidae (Slugs), a few fami- 
lies of Pteropoda and the Cephalopoda, a class which includes 
the Nautilus, the Squids, the Octopus and Argonauts. Speci- 
mens of a number of species in alcohol are in Case 2, in Hall 
24. A few of the soft Cephalopoda are represented by means of 
glass models. A model of the Giant Squid of the coast of New 
Foundland is suspended overhead. In Hall 24 is a model of 
the Giant Octopus of the Pacific Coast of the United States. 
HALL 19. 
MAM/VIALS. 
CASE 1. — Four representatives of the lower sub-class of 
mammals, the Prototheria. Of these the most interesting is the 
Duckbill (Ornithorhynchus) . It is so called on account of its 
duck-like beak. It is a native of Australia. It is aquatic in its 
habits and swims with facility. Although a true mammal, the 
remarkable fact has been discovered that it lays eggs instead 
of producing living young. The Echidnas, or Spiny Ant-eaters, 
are inhabitants of New Guinea, Tasmania and Australia. 
This case also contains members of the second sub-class of 
mammals, the Metatheria, order Marsupialia. These comprise 
the Phalangers, the Bandicoots, the Kangaroos, the Dasyures, all 
inhabitants of Australia, Tasmania and New Guinea, and the 
Opossums, dwellers in the Americas. They present many strange 
and interesting forms of life. The Phalangers usually live in 
trees and have prehensile tails. Some species subsist on vege- 
tation, others on insects. The 'Tying phalangers” resemble our 
flying squirrels, in having a fold of skin which acts as a para- 
chute. The Bandicoots (Perameles) burrow in the earth and 
subsist on roots and grain. The Kangaroos are grass-eating 
animals. The Dasyures are devourers of flesh. All the other 
animals belong to the sub-class Eutheria, and are continued in 
Case 2, and the two cases in the center of the room. 
