65 
GenusAcAN r horhynchus. 
Bill elongated, slender and acute, compressed on the sides ; tomia 
incurved, culmen acute and elevated ; nostrils basal, elongated, and 
covered with an operculum ; wings moderate in size, semi-rotund ; 
first and fifth primaries equal ; the third and fourth nearly equal in 
length, and the longest ; tail moderate in size and slightly forked ; 
tarsi lengthened and strong; middle toe long and robust, external 
toe exceeding the inner one in length. 
This genus, like many others of the family, may be regarded as 
strictly Australian : it comprises two, if not three, well-marked spe- 
cies, each of which is confined to a particular part of the country ; the 
A.tenuirostris dwelling in the eastern coast, and the A. superciliosus 
in the western ; both inhabit countries precisely in the same degree 
of latitude, and form beautiful representatives of each other. Van 
Diemen’s Land is the native habitat of the species I have named 
A. dubius , which, as will be seen, I had made synonymous with 
A. tenuirostris , but which I am now inclined to consider distinct, an 
opinion in which Mr. Blyth coincides. 
313. Acanthorhynchus tenuirostris .... Vol. IV. PI. 61. 
* 
314. Acanthorhynchus dubius, Gould. 
315. Acanthorhynchus superciliosus, Gould . . Vol. IV. PI. 62. 
Genus Myzomela. 
Five well-marked species of this genus are distributed over Au- 
stralia; numerous others are found in New Guinea and the neigh- 
bouring islands ; the form also occurs in the Polynesian Islands, but 
is not found in Van Diemen’s Land. 
316. Myzomela sanguineolenta . 
317. Myzomela erythrocephala, Gould 
318. Myzomela pectoralis, Gould . 
319. Myzomela nigra, Gould 
320. Myzomela obscura, Gould 
Vol. IV. PI. 63. 
Vol. IV. PI. 64. 
Vol. IV. PI. 65. 
Vol. IV. PI. 66. 
Vol. IV. PI. 67. 
Genus Entomyza. 
Two species of this well-defined genus are comprised in the 
Australian fauna, one of which inhabits the south-eastern parts of 
the country, or New South Wales; the other, which so far as we yet 
know is strictly confined to the north-eastern coast, is very plentiful 
at Port Essington and in the neighbouring districts. 
The form appears to be confined to Australia, for I have never 
seen it from any other country. 
321. Entomyza cyanotis Vol. IV. PI. 68. 
This bird has the habit — a somewhat remarkable circumstance 
F 
