951 
F.L.S. The two new species are named Dipsas Boydu and Diemenia atra, 
both from the Herbert River District, Queensland. The census gives the 
names,references, and localities of 108 species of Snakes, thirty-five of these 
being innocuous, and seventy-three venomous. The Paper concludes with 
some remarks on the immunity from snake bite enjoyed by Australia, as 
compared with India. — 5. O a new Species of Kangaroo (Dorcopsis Chal- 
mersit) from the South-east end of New Guinea. By N. de Miklouho- 
Maclay. A young Kangaroo obtained by N. de Miklouho-Maclay, in 
New Guinea, in 1880, has proved to be (on account of the great size of the 
praemolars, the general shape of the skull, and the direction of the hair on 
the neck), a new species of Dorcopsis, which he describes as Dorcopsis Chal- 
mersü Mel. The specific name, C’halmersü, is given in honour of the well- 
known and distinguished Missionary of the South Coast of New Guinea. 
The Paper contains a full description of the animal and its dentition. — 
6. On a complete debouchement of the Sulcus Rolando into the Fissura Sylvii 
in some brains of Australian aboriginals. By N. de Miklouho-Maclay. 
A complete junction of the Sulcus Rolando with the Fissura Sylvii, which 
is very rare in brains of our race (a single case only having been described 
by Professor Turner), has been found by the author in 2 out of 4 brains of 
Australian aboriginals. The junctions of the Sulcus Rolando with other Sulci 
are, according to Dr. Maclay, also not uncommon'in brains of men of 
dark races, and occur more frequently than in the brain of men of the white 
race. — 7. The Australian Hydromedusae, Part V., conclusion. By R. von 
Lendenfeld, Ph.D. In this paper the Monograph on the Australian Hy- 
dromedusae is brought to a close. All known Australian species are enume- 
rated with the necessary references, and 30 new species discovered and de- 
scribed by the author are added. The total number of species is 231. The 
most interesting of the new species are illustrated. The classificatory system 
established by the author is used. — 8. Muscular tissue of Hydroid Polyps. 
By R. von Lendenfeld, Ph.D. A Hydroid Polyp discovered by the 
author in Port Phillip, possesses a singular apparatus for escaping its ene- 
mies. This animal was investigated by Dr. R. von Lendenfeld, and a 
remarkable muscular structure was discovered. The histological structure of 
this is described, and some general conclusions drawn from the observations 
on muscular tissue by O. and R. Hertwig, Claus and the author. — 
9. Notes on the fibres of certain Australian Hircinidae. By R. von Len- 
denfeld, Ph.D. The author discusses the origin of the »Filaments«, and 
describes some new and interesting peculiarities of the Australian Hircini- 
dae. — 10. Botanical. — 11. On Marine Annelides of the order Serpulea. 
Observations on their Anatomy with descriptions of the Australian species. 
By William A. Haswell, M.A., B.Sc. The points treated of are, the 
pseudohaemal system, the segmental organs, the tubiparous glands, budding 
and hermaphrodism, and the characteristics of the Australian representatives 
of the order. The arrangement of the vessels in several of the genera is de- 
scribed. Segmental organs of a simple type are shown to exist in addition 
to tubiparous glands which had been previously regarded as representing the 
segmental sacs of other Polychaeta. Details are given of the structure of the 
tubiparous glands in a variety of genera. — 12. On a new Crustacean found 
inhabiting the tubes of Vermilia. By William A. Haswell, M.A., B.Sc. In 
the tube of a Port Jackson Serpulid the author found several specimens of a 
