477 
posterior hardly developed ; general contour from the umhones to the ventral margin, 
convex and well rounded. Surface smooth, with the exception of very delicate, scarcely 
defined, concentric lines, more apparent towards the ventral margin, and there are the 
faintest indications of radiating lines, more marked on the anterior and posterior 
sides. 
Obs. This large and well-marked shell was communicated by the late Eev. 
J. E. T. Woods, and although the locality has been mislaid it is unquestionably a 
Queensland shell. It is in a shelly limestone associated with a large number of 
NucuIcb. 
The nearly central position of the beaks and oval outline give it a very equilateral 
appearance, added to which the practically smooth surface renders it a species not 
easily forgotten. The dental characters are unknown, but were probably powerful, 
judging from the thick and strongly made shell. The radiating ribs would hardly be 
worthy of notice were it not that, when the test is weathered these appear in its 
substairce very distinctly, and when crossed by the fine concentric lines break up the 
shelly matter into small quadrangular spaces, as frequently seen in some of the 
Cardiidffi. 
The only species I can at all compare with the present one is Gardium 
imbricatarium, Leymerie, as figured by Eichwald.* The shape is the same, and there is 
a resemblance in the absence of sculpture and radiating ribs, although the last-named 
species has three along the position of the posterior slope. In our species the 
concentric laminse are very fine and close together, but in Leymerie’s species they are 
broad and somewhat distant. 
The exact locality has been mislaid, but Mr. Woods informed me that it was 
without doubt collected in Queensland. 
It is named in honour of Mr. John Brazier, C.M.Z.S., Conchologist to the 
Australian Museum, to whom the Writer is indebted for cheerfully rendered assistance. 
loc. Queensland {The late Rev. J. E. T. Woods — Colin. Woods). 
Family— DONACII)^. 
Genus— TAJSrOREBIA, Lycett, 1850. 
(Ann. and Mag. Nat. Hist., vi., p. 407.) 
Obs. Two Australian Mesozoic shells have been referred to this very well- 
marked genus, Tanevedia plana, Moore, and Tancredia, sp. ind. (Etheridge). They are so 
retained in deference to the opinion of such well-known Authorities in Secondary Palceon- 
tology, although neither shell corresponds in outward appearance with the type species of 
Tancredia, T. donacifonnis, Lycett, or with the next described form T. extensa, Lycett. 
The hinge characters of the Australian shells are not known. 
Tattceebia ? PLANA, Moore. 
Tancredia plana, Moore, Quart. Journ. Geol. Soc., 1870, xxvi., p. 254, t. 13, f. 13. 
Sp. Char. Shell thin, smooth, flattened, transversely ovate, rather inequivaive ; 
anterior side rounded ; jposterior margin oblique ; surface of the shell covered by very 
fine transverse striations. {Moore.) 
Loc. Ely thesdale, fifteen miles from Wollumb ilia {The late Rev. W. B. Clarice). 
Lethsea Rossioa, ii., p. G82, t. 25, f. 11. 
