76 USEFUL PLANTS OF GUAM. 
always to be found germinating on the stretches of sandy beach along 
the southern portion of the east coast of the island. With Schimper 
usa guide, and the benefit of the experiments of Guppy and of Treub, 
a student on the island of Guam would find abundance of material 
and a most favorable opportunity for studying the seeds of the drift 
in the places where they have been deposited by the great. trans- 
Pacific current, and where they could be observed in the process of 
germinating under absolutely natural conditions. 
ANIMALS OF THE ISLAND. 
MAMMALS, 
Bats.—There are no indigenous quadrupeds in Guam. The only 
mammals in prehistoric times were two species of bats, the large fruit- 
eating Preropus herandroni Q. & G., or “flying fox,” called ‘* fanihi” 
by the natives, and a small insectivorous species. Ainballonura semicau- 
data Peale, called ** payésyes.” The fanihi flies about in the daytime, 
flapping its wings slowly like a crow. It has a disagreeable musky 
odor, but this leaves it when the skin is removed, and the natives some- 
times eat it. The flesh is tough, but not unsavory. The principal 
fruits eaten by it are guavas, fertile breadfruit, the drupes of the 
fragrant screw pine, called ‘*kaf6,” and custard apples (claimed 
reticulata), Which it has undoubtedly helped to spread over the island. 
This species occurs in Fiji, the Friendly Islands, New Hebrides, and 
Pelew Islands. It very closely resembles the flying foxes of Samoa, 
which the natives of those islands call ‘* pe’a,” or *tmanu-langi” (bird 
of heaven), Aiballonura semicaudata, the insectivorous bat, is noe- 
turnal in its habits, and flutters about very much like our own common 
species. It remains in caves during the day and ventures forth at twi- 
light. It is very similar to, if not identical with, the ‘tapa’au-vai” of 
the Samoans, and has been collected in Fiji and the New Hebrides. 
Rats AND MICE.— The Norway or brown rat (Jus deewianus Pallas), 
valled **chaka” by the natives, was probably introduced into the island 
through the agency of ships. It is very abundant and is a great pest, 
especially in plantations of maize and cacao. It also destroys young 
coconuts, ascending the trees and often making its nests there. The 
common mouse (Jus musculus L.) has also been introduced. It appar- 
ently causes little harm. 
Drer.—An introduced deer, Cervus mariannus Desm., overruns the 
island and causes great damage to maize, young coconut palms, and 
other crops of the natives. It was brought to the island by Don 
Mariano Tobias, who was governor of the Mariannes from 1771 to 
1774. Its flesh has a fine venison flavor, and it is a favorite food staple 
of the natives, who hunt the animal with dogs and guns, often burning 
