300 THE ZOOLOGIST. 
Order MONOTREMATA. 
Family Ecurpnipm. 
Echidna hystrix, Hchidna.—£4 (once). 
Class AVES. 
Order PASSERES. 
The vast majority of the species of Passerine birds that 
come into the market show little variety of price: usually from 
five shillings to £2 per bird: ranging down to one shilling, and 
up to £2 10s. Very showy birds, such as members of the 
families Paradiseide and Cotingide, of course command much 
higher prices : as do newly imported species of other families, if 
there happens to be any competition among amateurs to secure 
them. 
Order PICARIA. 
Of the very varied assortment of birds retained for convenience 
in this Order, there are but few species that can often be obtained 
from dealers. The delightful African Mouse-birds or Colies, 
Colius, cost about £2 each. The Australian Laughing King- 
fishers, Dacelo, from £1 to £2. The African Ground-Hornbills, 
Bucorvus, from £5 to £10. The handsome Toco Toucan, Rham- 
phastos toco, £4 to £4 10s.; the smaller Toucans from £1 10s. to 
£3. The Touracous, T'wracus and Schizorhis, £4 to £5. 
Order PSITTACI. 
Generally speaking, Parrots, as birds (and apart from any 
tricks of speech that they may have acquired), are worth from 
£1 to £83 each. Except: on the one hand certain species for 
which higher prices must always be given, as, for instance, the 
Ganga Cockatoo, Callocephalon, £3 10s. to £5, and the larger 
Macaws, Ara and Anodorhynchus, £3 to £12. As is well known, 
the Black Cockatoos are even more valuable; I have seen £45 
asked for a pair of Calyptorhynchus stellatus. And it must be 
remembered that, as in the case of all other birds, newly, or 
very rarely, imported species of Parrots command high prices, 
according to the competition to possess them. 
On the other hand, certain species of small Parrots, that 
come regularly into the market, can be bought for less than £1: 
as the Cockateel, Calopsittacus nove-hollandie, which sells at 
from four to six shillings a bird; the horribly screeching Grey- 
