1897.] Zoology. | 725 
(3) Acridiidze by six ceca each with a posterior diverticulum and by 
the absence of a gizzard. 
(4) Locustidæ by a voluminous gizzard with six rows of chitinous 
teeth, by two large ceca, and by the numerous Malpighian tubes open- 
ing at the summit of small conical tubercles. 
(5) Gryllide by a large gizzard thickly armed with chitinous teeth, 
by two cæca, and by the Malpighian tubules being grouped into large 
fascicles that empty at the enlarged extremity of an efferent canal play- 
ing the role of ureter. 
A Preserve of Black Foxes.—aA few years ago a tourist, con- 
vinced that the extermination of the Black Fox was but a question of 
a few years at the most, purchased an island, Outer Heron, at the 
mouth of the Maine, off the port of Boothbay, with the intention of es- 
tablishing there a colony of the animals in which he was interested. He 
imported from Alaska thirty individuals, only seven of which survived 
the long voyage. These were liberated on the island, which is well 
wooded and watered, and were provided with a guard, whose duty it 
is to look after the increase of the original seven. They are fed on 
horse meat, which is left in the forest for them, but they themselves 
forage along the shore for fish and mollusks thrown up by the sea. 
They live for the most part about the coast, seeking shelter in the clefts 
of the rocks. 
The owner finds his venture quite a profitable one, having arranged 
with a London firm to dispose of the skins of the surplus of his pack. 
(Revue Scientif., Avril, 1897.) 
D. G. Elliott and his party obtained 125 species of birds during 
their expedition through Somali-land. A list of these species has been 
compiled by Mr. Elliott, who subjoins each species named with the field 
note pertaining to it. The author gives much valuable information 
concerning the habits of these African birds. A new Kestral is de- 
scribed, Cherchwis fieldii, and 7 other new forms representing the famil- 
ies Turdide, Sylviide, Alandide and Ploceidæ. The latter family, 
however, has only a subspecies representative. (Pub. 17, Field Col. 
Mus.. Ornith. ser., Vol. I, No. 2, 1897.) 
A resumé of the species of known Costa Rican mammals is given by 
J. A. Allen. The total number of species enumerated is 121, of these 
10 species are domesticated animals, and 4 are introduced species of 
Mus, leaving 107 as indigenous to Costa Rica, (Bull. Amer. Mus. Nat. 
Hist. » Vol. IX, 1897.) 
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