235 
simple plain sulcus, with the whole crossed by close flat frill-like imbrications, serve to 
easily distinguish this species. The ribs are divided from one another by their own 
width apart, but the rib, however, mentioned by McCoy as traversing the sulcus does 
not appear to be a constant character, for out of eleven specimens before me only two 
show it. It is a remarkably narrow species, as compared with its width, giving to the 
marginal outline a rotund or ronndcdly-triangular appearance. By a lucky coincidence 
I am ha^ipy to be able to show that this shell is referable to Spirifirina rather than to 
Spirifera. Both in a specimen from Mount Britton, and in anothorfrom a New South 
Wales locality, there is visible the deep central slit left in casts by the median ventral 
septum, which exists in Spiriferina^ as well as the vertical shelly plates. In both 
examples, also, the punctate shell-structure so characteristic of this genus is quite 
apparent. The Queensland specimen is by no means perfect, and exhibits only four 
ribs on each flank. It is an internal cast of the ventral valve, and retains the punctate 
structure very distinctly. 
Loc. and Horizon. Eichards’ Homestead, three miles south-west of Mount 
Hritton Township {A. L. Morisset ; Australian Museum Colin.) — Middle or Marine 
Series of the Bowen River Coal Eield. 
Spieifebina, sp. ind. 
Obs. A small shell occurs in the Star River Series having an entire mesial fold, 
^nd indications of numerous concentric, close-set, and frill-like lamellre. Seven or eight 
pronounced ribs wore seen on each side the fold, and traces of asperities representing 
punctate shell-structure. It is probably a small species of Spiriferina. 
Loc. and Horizon. Corner Creek, Great Star River {JR. L. Jack ) — Star Beds. 
Genus— RRTIGULAEIA, McCop, 1844. 
(Synop. Carb. Limest. Toss. Ireland, p. 193.) 
Reticulaeia lineata, Martin, sp. ? 
[Anomites) Uneatns, Martin, Pet. Dei-b., 1809, t. 36, f. 3. 
ticularia I incata, McCoy, Synop. Carb. Limest. Poss. Ireland, 1844, ti. 193, t. 19, f . 15. 
P^rijera Hnmta, Davidson, Mon. Brit. Carb. Brach., 1858, Pt. 2, p. G2. 
'^ticularia lineata, Davidson, Mon. Brit. Sil. Brach. Suppl., 1882, Pt. 1, p. 81. 
» ,, Waagen, Pal. Ind. (Salt Range Poss.), 1883, Ser. xii., Vol. 1, No. 4, fasc. 2, j). 540, t. 42, 
f. 6-8. 
Obs. This, the type species of McCoy’s genus Reticularia, is represented 
ut Mr. De Vis’ Collection by a portion of a ventral valve only, but possessing the 
istinctly imbricated laminm and numerous scars of the characteristic double spines, 
n the face of such features I cannot do less than refer the fragment to this species. 
A far better example of the ventral valve comes from the Rockhampton District,* and 
^6ll exhibits the points referred to. They will, at any rate, tend to show the existence 
of this group of the Spiriferidae in the Permo-Carboniferous rocks of Queensland, a fact 
orne out by the species following. 
Loc. and Horizon. Rockhampton District * {G. W. L)e Vis ; Colin. De Vis) — 
^ympie Beds. 
Retictoaeia IJeei, JE'leming, sp. 
^infer Urei, Fleming, Brit. Animals, 1828, p. 370. 
^•■rifera Urei, Davidson, Mon. Brit. Carb. Brach., 1858, Pt. 2, p. 58, t. 12. f. 13 and 14. 
ticularia Urei, Davidson, Mon, Brit. Sil. Brach. Suppl., 1882, Pt. i., p. 81. 
^ Obs. Casts are met with in the Star River Beds which are difficult to distinguish 
^om those of Spirifera Vrei, and more especially the Devonian variely unguiculus. 
* /See note, p. 199. 
