318 
Silurian—Carboniferous. Hurope, Bolivia, Australia. 
T. amygdala, Salter, (M.S.) Tasmania, West. 
T. antipoda, Salter, (M.S8.) Tasmania, West. 
Class CEPHALOPODA. 
Lituites, Breynius, 1732. 
Bigsby’s Thes. Sil. 1869; Hth. Cat. Aust. Fossils, p. 
26; Tryon i, p. 56. 
Shell planorbiform, the whorls close or separate ; the last 
chamber produced in a straight or outwardly curved line; 
lateral margins of the aperture extended and curved towards 
the interior of the shell, contracting the aperture into two 
distinct orifices. 
Silurian. North America, Europe, Australasia. (Tryon.) 
L. Gouldi. 
Orthoceras. Breynius, 1732. 
Bigby’s Thes. Sil. 1868; Eth. Cat. Aust. Fossils, p. 
26; Tryon i., p. 51. 
Shell straight, aperture sometimes contracted. (Tryon.) 
L, Silurian to Triassic. N. America, Hurope, Australasia. 
O. antilope. Salter. M.S. Gordon Limestone, Tas. 
O. Murchisoni. mS 3 i. 
O. Theca. i - * 
O. Youngi. . iM a 
Phragmoceras. Brod. 1839. 
Tryon i1., p. 55. , 
Shell compressed on the sides, curved ; aperture contracted 
in the middle; last chamber large; siphuncle dorsal, with 
radiations ; septa simple. 
Silurian to Devonian. Europe, N. America, Australasia. 
One sp. in the Museum of the Tasmanian Royal Society. 
TASMANIAN MOSSES, THETR IDENTIFICATION, &c., 
By R. A. Bastow. 
[Read May 12, 1885.] 
The Mosses of this and the neighbouring colonies are, like 
the fauna, singular and peculiar, presenting genera and species 
analogous in many respects to those of the British Isles, and 
yet many of them have some peculiarity of structure render- 
ing them unique. In “ Hooker’s Flora Tasmaniz”’ we have a 
great number of Tasmanian Mosses carefully described, and 
beautiful drawings of many of them are therein contained. 
