474 
Australian Mesozoic list, and I have mucli pleasure in associating witli it the name o£ 
Mr. Hudleston, whose labours amougst the Secondary Mollusca are much appreciated. 
It is provisionally placed in Gytherea at the suggestion of Mr. J. Brazier. 
Loc. JS’orth-east end of Glanmire Bloolc, seventeen miles south-west of Tambo 
(Jlir. Ooffage). 
CrTHEuEA (CrpRnsTA ?) Mooeet, sp. nov., PI. 34, figs. 12 and 13, 
Cyprina ? sp., Hudleston, Geol, Mag., 1S84, i., p. 341, t. 11, f. 7a and 6. 
Sp. Char. Shell ovate, width and length nearly equal, hinge-line or cardinal 
margin sloping sharply on both sides ; ventral margin regularly rounded, anterior end 
short ; posterior end obtusely pointed. Lunule probably long and moderately deep. 
TJmbones but little incurved ; umbonal region obtuse, the test much thickened thereabouts ; 
fianks compressed towards the ventral margin. Sculpture of surface unknown. 
Obs. I am unacquainted with the nature of the hinge, thus leaving the question 
of its generic position, whether Cytherea or Cyprina, an open one. An examination 
of Mr, Hudleston’s type showed that the “concentric bauds at intervals” arc simply 
eroded layers of shelly matter, the surface, in all probability, having been comparatively 
•smooth. Both the original descriptionand figure are therefore in this respect misleading. 
The preservation of the tyi^e certainly does not permit of it being said — “ lunule wide 
and deep, ligamcutary excavation wide and short,” for these portions of the specimen 
.are notin a condition favourable for description. The lunule was long, but not particularly 
deep. 
A specimen (PI. 2G, figs. 11 and 12) has been presented to the Queensland 
Geological Survey Collection by Mr. Howland Morrisby, which appears to corre.spond 
closely with Mr. Hudleston’s species, but it presents a slightly different aspect on 
account of the preservation of the umbo, which gives the specimen a rather higlier and 
less robust appearance. 
Loc. Evora Station, twenty-five miles north-east of Blackall (H. Morrisby ) ; 
Peak District, South Australia {H. 7. L. .Srozon— Nat. Hist. Museum, London) — Lake 
Byre Beds. 
Family— CYPETNID.^. 
Genus — GTPIIINA, Lamarck, 1818.* 
(Hist. Anim. sans Verteb., v.) 
CrPEiwA CuAEKEr, Moore, sp. 
PI. 27, fig. 9 ; ? PI. 26, figs. 18 and 19 ; ? PL 27, figs. 10 and 11. 
Cytherea CXarTcei, Moore, Quart. Journ. Geol. Soo., 1870, xxvi., p. 250, t. 13, f. 1. 
Cyprina exxmnsa, Etheridge, Quart. Journ. Geol. Soo., 1872, xxviii., p. 338, t. 19, f. 1. 
Syi. Char. Shell large, thick, rather compressed, transversely ovate, inequilateral, 
moderately convex ; umbones flattened, incurved over a large and rounded lunule ; 
anterior and posterior ends and dorsal margin rounded ; surface of the shell with broad 
irregular transverse bands of growth. (^Moore.) 
Ohs. Unfortunately Mr. Moore’s description of this important shell is most 
inadequate for its correct determination, and the figure is little better. As represented, 
it would convey to the eye the idea of a shell possessing a very concave anterior hinge, 
and a much arcuated and obliquely directed posterior hinge-lino. Along the latter line, 
however, the specimen figured was clearly defective. During a comparatively recent 
Probably proposed in 1812, in the “ Cours de Zoologie.' 
