309 
Favosites nitida, sp. nov. Plate LIV., figs. 21-23; pi. LV., figs, 24, 25. 
cf. Favosites, sp. indet., Etheridge, jun., T899, Prog. Rep. Geol. Surv. Viet. No. XL, p. jj, pi. B., 
figs. 7 - 9 . 
Description. —Corallum of moderate size; largest specimens measuring 
about 7 or 8cm. Corallites slender, radiating, with moderately thick 
walls; normally hexagonal, but sometimes pentagonal or subrectangular, 
with two of the sides reduced by crowding of contiguous corallites. 
Diameter of corallites, 0.5 to 0.75mm. In transverse section showing 
traces of spiny septa; maximum number 12, two on each corallite face 
when fully developed. In vertical section the mural pores are seen to 
be placed in a single row, sometimes sinuous, down the centre of each 
corallite face, and are of large size (0.17mm. in diameter); smaller dark 
dots are visible on the corallite walls, and are the bases of the septal 
spines. Tabulae numerous, 3 or 4 in the space of imiri,, somewhat 
irregular, horizontal, concave or oblique. 
Observations. —The above species agrees very closely with Mr. 
Etheridge's preliminary description of a Favosites from the Silurian of 
Wombat Creek, Gippsland, and is in all probability identical with that 
form. Transverse sections of F. grandipora Eth. fil. 1 , approach this 
form in the size of the corallites and their septal spines; but the two 
species are readily separable by the thick walls of F. grandipora, and 
In vertical section by the thin tabulae and the slender septal spines, as 
well as the thicker corallite walls of the same species. 
Some of the specimens here referred to the above species show a strik¬ 
ing resemblance to F. basaltic a , var. salebrosa Eth. fib 2 , of the Woolo- 
mool limestone of Tamworth, New South Wales, especially in the small 
corallites with their widely-spaced tabulae. However, that variety shows 
no recognizable septa. 
Occurrence. —Deep Creek ; also Cooper’s Creek (behind copper mine). 
Genus Pachypora Lindstrom, 1873. 
Pachypora alterivalis, sp. nov. Plate LVII., figs. 28, 29. 
Description .—Corallum small, ramose, with cylindrical branches. 
Length about 2cm., or slightly longer (specimen imperfect)_; width of 
branch, 4mm. Corallites radiately divergent, mouths of calices roundly 
polygonal to subovate, 0.34 to 0.45mm. in diameter. Tabulae very scarce, 
slightly concave; mural pores few and large, irregularly placed. Walls 
of corallites thick. 
Affinities .—This species closely approaches Pachypora cristata Ed. 
and H. sp. 3 , a fossil from the Wenlock Series of England. This is 
especially so in regard to the small size of the corallum with its rounded 
branches, the subcircular to polygonal calices and the concavely curved 
tabulae. 
The species described from the Middle Devonian (Burdekin Series) of 
Queensland by Messrs. Nicholson and Etheridge, jnr. 4 , under the name 
of P. meridionalis is different from ours in its more circular corallites and 
apparently horizontal tabulae. 
Occurrence .—Deep Creek, Thomson River, Gippsland. 
1. Rec. Austr. Mus., vol. I.. No. 3, 1890, p. 61, pi. VIII., figs. 6-9. 
2 . R,ec. Geol. Survey., N.S. Wales, vol. VI., pt. 3, 1899, p. 166, pi. XXI., figs. 3-5 ; pi. XXVII., figs. 
1 , 2 . 
3. Polyp. Foss, des Terr. Pal., 1851, p. 342 : Brit. Foss. Corals 1854, p. 260. pi. LXI.. figs. 3 and 4 ; 
Nicholson, Tabulate Corals, 1879, p. 87, pi. IV., figs. 4-4 b ; pi. V., figs. 1, 1&. 
4. Ann. and Mag. Nat. Hist., ser. V., vol. IV., 1879, p. 280 ; Etheridge and Jack, Geol. and Pal. of 
Queensland, 1892, p. 51, pi. II., figs. 10-15. 
