889 
TJkio etheksis, Tate. 
XJnio Eyrensis, Tate (m.s.) u j f 
„ Etheridge fil., in II, Y. L. Brown’, s Reports on Coal-bearing Area in the Neighbourhood ot 
Leigh’s Creek, S, Austr, (S, Austr, Pari, Papers, 1891), p. 11, t, 2, f. l-o, 
Sp. Char. Shell transversely elongate, or elongately siibovate, length more than 
twice the height ; anterior end slightly produced, posterior end obtusely pointed, 
and produced ; hinge-line behind the umbonos obliquely inclined ; ligamental area 
broad ; ventral margin convex ; umbones tumid, depressed, and much eroded , 
anterior muscular impressions low down, the posterior small and close under the 
hinge-line ; shell moderately thick, surface representing the epidermis coarsely striate 
and subimbricate, 
Ohs. This species is represented by two examples, one an internal cast with 
portions of the shell still remaining, the other a more complete individual, with nearly 
the whole of the shell preserved and the umbones eroded. The specimens are con- 
verted into ironstone, and their appearance is so difierent from the other North Queens- 
land fossils as to at once suggest a totally different deposit. _ _ 
The species of Unio hitherto described from Australian rocks are very limited in 
number, and we have now in consequence to deal with one of an entirely new facies. 
TI. eyrensis resembles to some extent the species from the Judith River Gioup 
of North America, but is a more convex and bulky form, and devoid of radiating 
strise. 
Unio Dance, Meek and Hayden,* from the Laramie Group (Cretacco-Tertiary) , 
resembles the present species to some extent, but is not so nasiform, or elongate y 
wedge-shajied. 
Amongst European Mealdcii species it is not unlike TT. porrectus, Sby., but sti 
more like Unio siih-porrecfus, A. Roemer.t or V. Dunkeri, Struckmanu.J 
Loc. Bundanba, near Ipswich, in brick clay overlying coal {Son. A. C. Gi eyoiy, 
and J". Malbon Thompson'). 
Hnio, sp. ind. 
Ohs. A second species occurs in the same bed at the Bremer Colliery, but it is 
distinct from U. ipseiciensis. It is far larger than the latter, and evidently differed 
much in shape, being a broader and stronger species. The specimen consists of the 
anterior portion of the conjoined valves, and had lost all trace of shelly matter. It is 
too imperfect for further diagnosis. 
E. 
* White in Powell’s 3rd Add. Report U. S. Geol. Survey, 1881-82 [188 t. 17, f. 1-3 
t Dunker, Mon. Norddeutchen Wealdenbildung, 1846, p. 27, t. 11, f. 0. 
t Die Wealden-Bildungen, 1880, t. 1, f. 6. 
