206 
Sanguinolites etheeidgei, L. G. de Koninch, Q) 
PL XVI , Pig. 2, and PL XVII, Pig. 2. 
Tins shell is large, very gibbous, elongated, club or wedge-shaped, 
inflated at its anterior part, and nearly flat at the opposite side. The valves are 
very deep anteriorly ; the beaks thick, strongly recurved, touching each other, 
and placed very near the anterior margin. The ventral margin is regularly 
curved like the anterior margin, hut the posterior margin is slightly truncated 
obliquely, and gapes a very little, so as to show an oval and very narrow 
opening towards that part of the margin which joins the hinge line. The 
whole surface is ornamented with thick, concentric, wrinkles of growth, 
rather like each other, and bearing striae parallel with them. I could find no 
trace of muscular impressions on the casts of this sjDecies. 
Dimensions, — The length is eight, the breadth four, the thickness four 
and a half centimetres, and the distance between the beaks and the anterior 
margin one centimetre. 
Delations and Differences — In dedicating this species to Mr. R. 
Etheridge, I wish to do homage to the talent with which he treated a subject 
similar to the one I have in hand, and also to the skill with which he conducts 
the Palaeontological section of the School of Mines, London. This sq)ecies 
differs from the jireceding by its size, and especially by the anterior position 
of its beaks. Another specimen sent me was shorter and broader than the 
one I have just described, but like it in every other respect, so that I consider 
it a variety of S. Elheridgei, it may possibly have been distorted during 
fossilisation. I have represented it on PI. XVI, Pig. 2. 
Dorizoyi and Localities^ — All the specimens come from the Muree 
sandstone, except the last which was found at Mount Vincent. 
Sanguinolites McCoyi, L. G. de Koninch} 
P]. XVII, Pig. 3. 
This shell is rather small, regularly oval, ventricose, nearly twice as 
long as broad, and exactly as thick as broad, with anterior beaks closely 
approaching each other. The whole surface is covered with irregular, 
concentric, wrinkles of growth. The posterior margin seems to gape. 
(') [Chmionya? Etheridgei, De Koninck, sp. E. Ethei'idge, Jum-., Geol. and Pal. Q’land., 1892, p. 279. 
Procs. Linn. Soc. N.S. Wales, 1895, x (^), Pt. 3, p. 532, t. 40, f. 5. W.S.D.] 
^ [Of this species Mr. E. Etheridge, junr. , says “ It has the outward appearances of the genus AUorisma, 
King, but without a better knowledge of its internal characters it would not be wise to so refer it. . . Geol. 
and Pal. Q’land., 1892, p. 281.— W.S.D.] 
