222 
margins sometimes irregular, or wavy from the projection of the lateral rows of cell- 
mouths. Cellules rouiul, exsert, in from three to ten oblique rows, separated by slightly 
impressed lines or grooves. Outer surface of polyzoariuin granular- striate. 
Ohs. In a former Paper * it was shown that my Colleague had collected three well- 
marked forms of retiforin Polyzoafrom the Carboniferous rucks of Northern Queensland. 
One of these was a large crumpled form, to which the name Protoretepora KonincTcii 
w'as given ; the second was stated to be allied to P. ampla, but smaller in habit ; whilst the 
third was Feiieslella fossula, Lonsd. At the same time the great difficulty attending the 
satisfactory determination and separation of these species was pointed out. 
Since the remarks I'eferred to w^ere written, I have found, in the National 
Collection,! Strzelecki’a types of P. ampin, Fenesiella fossula, and F. internnta, described 
by Lonsdale. A comparison of these types with the Queensland specimens has rendered 
a revision of the names applied to the latter necessary. In the first place* the coarse 
form called P. Konincldi can only be regarded as an extreme variety of the typical 
P. ampla. Secondly, the fossil compared to the latter is another variety, but in the 
opposite direction to P. Konincldi, being of a finer and smaller habit ; whilst, in the last 
place, the fossil called Fenesiella fossula, I believe to be that species. 
The leading features of Proforetepora ampla, therefore, are the coarseness of its 
mesh, and the want of clear demarcation between the dissepiments and interstices. The 
former varies in its greatest extent towards the var. Konincldi, and in the least degree 
tow'ards the other condition, which will be immediately described as the var. Woodsii. 
Loc. and Horizon. Blackfellows’ Diggings, near Tlockhampton {The late B. 
Daintree ; Colin. British Museum) ; Gympie (P. L. Jaclc) ; Boot of Broadsound 
Eanges, between Maxford and Apis Creek, about Lat. 22° 52' (S., and Long. 149° 34 L. 
{J. M. Kaufmann) — Gympie Beds. 
PnoTOEBTEPOKA AMPLA, vuT. WooDSii, Var. nov.. Pi. 8, fig. 12. 
Proloretepora ampla, De Koninck (nwn Lonsdale), Foss. Pal. Noiw.-Galles du Sucl, 1877, Pt. 3, p. 180, t. 8, 
f. 
„ sp, ind.i EtheridpfG fil., Proc. B. Phys. Soc. Edinb. 1880, v., p. 278. 
Ols. As before stated, this name is applied to that form believed to be a small 
variety of P. ampla, and typified by Prof. De Kouinck’s figure, which is certainly not 
that of the species proper. The entire habit of the polyzoariuin is on a smaller scale 
than that of Lonsdale’s type specimen, but the details of structure are otherwise 
identical. 
Loc. and Horizon. Coral Creek, below Sonoma Eoad-crossing, Bowen Eiver 
{B. L. Jack) — Middle or Marino Series of the Bowen Eiver Coal Pield. 
Peotoeetepoea ampla, var. Koninckii, Etheridge fil. 
Protoretepora, KonincUi, Etheridge fil., Proc. R. Phys. Soc. Edinb. 1880, v., p. 277. 
Ols. The polyzoarium is infundibuliform, curled, and much crumpled, and o 
large extent. The fenestrules are small, round, separated by wide interspaces 
(interstitial), and arranged in quincunx. Interstitial surface occupied by from fi'''® 
ten rows of cell-apertures between contiguous fenestrules. Cells with hexagonal o 
polygonal bases. Basal plate thin and striated. 
The fenestrules are smaller than in typical specimens of P. ampla, Lonsda^^i 
but the increased interstitial surface separating the circular fenestrules gives to P^^pml^ 
* Proc. E. Phys. Soc. Edinb., 1880, v., p. 274. 
t In the Geological Department, British Museum (Natural History), London. 
