103 
morphism of the males, while the females remained very similar. The males 
were stated to exhibit four very distinct phases of the development in their 
mandibles, which the author proposed to term »priodont«, »amphiodont«, 
»mesodont«, and »telodont« These forms were strongly marked in some 
species; but in others were connected by insensible gradations, and had been 
treated by the earlier authors as distinct species. The second part of the 
memoir contained a monograph of the three known genera which constitute 
the group Odontolabini. — Mr. E. B. Poulton, F.Z.S., read a memoir 
on the structure of the tongue in the Marsupialia. The tongues of species 
of nearly all the important groups of this subclass were described in detail. 
It was found possible to classify the tongues in three divisions. Of these, 
Halmaturus was the type of the lowest, Phalangista of the intermediate, and 
Perameles of the most advanced division. — Mr. J. Wood-Mason, 
F.Z.S., read a paper on the Embiidae, a little-known family of Insects, on 
the structure and habits of which he had succeeded in making some investi- 
gations during his recent residence in India. He came to the conclusion 
that the Embiidae undoubtedly belong to the true Orthoptera, and are one 
of the lowest terms of a series formed by the families Acridioideae, Lo- 
custidae, Gryllidae, and Phasmatidae. — Mr. G. A. Boulenger, F.Z.S., 
read an account of a collection of Frogs made at Yurimaguas, Huallaga 
River, Northern Peru, by Dr. Hahnel. The collection contained examples 
of eighteen species, eight of which were regarded as new to science. — Mr. 
W.F.R. Weldon read a paper on some points in the anatomy of Phoeni- 
copterus and its allies. An account was given of the air-cells of the Flamingo, 
which where shown to differ from those of Lamellirostres, and to agree with 
those of Storks 1) in having the praebronchial air-cell much divided, 2) in 
the feeble development of the posterior intermediate cell, and 3) in the great 
size of the abdominal cell. The pseudepiploon was also shown to differ from 
that of Lamellirostres, and to agree with that of Storks, in extending back 
to the cloaca. A detailed comparison between the muscles, especially those 
of the hind limb, gave the same results. The larynx, however, being An- 
serine, and the skull intermediate, the position expressed by Huxley’s term 
Amphimorphae was considered fully justifiable. — Mr. Sclater read a 
paper, in which he gave the description of six apparently new species of 
South-American Passeres. — P. L. Sclater, Secretary. 
2. Linnean Society of New South Wales. 
28th Nov., 1883. — 1. Some fishes of New Britain and the adjoining 
islands. By Charles W. De Vis, B.A. The names of the new specimens 
[? species] described are — Serranus pergutiatus and eruentus, Mesoprion flavi- 
rosea, Tetraroge vestita, Acanthurus Zebra, Rhynchichthys Novae-Britanniae, 
Harpage rosea (a new genus of the Berycidae), Salarıas aequipinnis, Amphi- 
prion Arion, Pomacentrus onyx and notatus, Nesiotes purpurascens (a new genus 
of the Labridae), Hxocoetus longibarba, Arius armgier, Herpetichthys cobra (a new 
genus of the Muraenidae), Tetrodon insularium and laevis. — 2. Some results 
of Trawl fishing outside Port Jackson. By William Macleay,F.L.S., etc. 
In this Paper are given. — 1) an account of two trials of a large Beam 
Trawl in 40 to 50 fathoms water by the order of the Commissioner of Fi- 
sheries; 2) a list of the fishes captured, and 3rd, descriptions of two new 
species — a skate — Raa australis, and a Gurnard — Lepidotrigla Mulhalli. 
