95 
and in the only naturally fractured longitudinal section exposed, although 
the sides of the corallite in question are crushed together (PI. X XVIII, 
fig. 4), the presence of the spines is shown throughout. I am unacquainted 
with the nature of the tabulae. 
The largest specimen is a cluster of corallites six and a half inches by 
three and a half inches, the longest individual corallite seen measuring four 
inches. 
It is almost needless to remark that the structure of T. (?) Murrayi 
docs not strictly conform to the generic characters embracing the whole of 
the typical species ; it is, therefore, an altogether aberrant form of Tryplasmci. 
The species is named in honour of Mr. It. A. E. Murray, formerly 
Government Geologist of Victoria. 
Locality . — "War a tali Bay, near Wilson’s Promontory, S.E. Victoria 
( Geological Survey of Victoria and National Museum Collections, 
Melbourne) . 
Tryplasma liliiformis, sp. nov. 
(Plate XIV, Figs. 2 and 3; PL XV, Figs. 2-4; PI. XVII, Figs. 7 and 8; PI. XXIV, Fig. 1 ; 
PI. XXV, Fig. 8 ; PI. XXVII, Figs. 1 and 2.) 
Specific Characters . — Corallum aggregate, hardly sub-compound, nor 
strictly fasciculate. Corallites liliaciform, stem-like below, with a diameter 
of five-eighths of an inch, expanding above into bell-sliaped calices, two and 
a half to three inches in diameter; base sometimes pedunculate. Proper 
wall narrow. Epitheca delicate, thin. Rugae flat. Radiciform processes 
long and well developed, irregularly scattered on the stems or basal portions 
of each corallite, and sometimes to be seen immediately below the calicc 
margins. Calices wide and bell-mouthed, deep, with the bottoms flat or 
slightly concave. Septal lamellae very numerous, mere ridges, about fifty- 
eight in the stems and eighty in the calices, primary and secondary ; spines 
short and blunt, horizontal or slightly projecting upward. Tabulae very 
numerous, complete and incomplete ; complete tabulae horizontal, concave, 
or rolling, close in the stem, but much wider apart near the calice ; 
incomplete forming long, large, and often irregularly lenticular vesicles. 
Gemmation compound-calicular-rejuvenescent, two to three (? four) buds, 
i 
