LOWER CRETACEOUS FOSSILS — ETHERIDGE. 159 



acting as centres of union. 4 lb What the relation of these frag- 

 mentary and comparatively diminutive north-western forms may 

 be to the larger species of Eastern Australia it is at present 

 impossible to say. 



Locs. — Cambridge Downs, near Richmond, .North-Central 

 Queensland [Q.M.]. (l)Maranoa River, South-East Queensland 

 [G.S.— sketch]. 



The fine specimen (PL xlviii. ) from the Queensland Geological 

 Survey Collection is without a locality. 



Crioceras cordycepoides, Eih.fil. 



Ancyloeeras cordycepoides, Eth. fil., S. Austr. Pari. Papers, 1905, 

 No. 71, p. 14, pi. i., figs. 3-5; pi. ii., fig. -4. 



Sp. Char. — Shell small, coil and shaft in one plane ; proximal 

 end of one whorl, little more than crooked, terminating in an 

 obtuse apex; shaft slightly bent ; venter truncate, flat ; dorsum 

 rounded ; flanks slightly rounded ; section longitudinally oval, or 

 obscurely quadrate. Costse strong, oblique on the flanks, straight 

 or advancing ventrally and retreating dorsally, gathered into 

 fasciculi of three or four costae by a line of nodes along the dorso- 

 lateral lines, and another along the abdominal lines, the median 

 rib of each fasciculus stronger than the others ; on the truncate 

 venter usually straight, a few arched forward, corresponding in 

 number to those of the flanks, and the median rib stronger than 

 the others. Tubercules of the abdominal lines large and node- 

 like, or produced as short acute spines. 



Obs. — The resemblance of the shaft of this species to certain 

 conditions of the corresponding part to C.flindersi has already 

 been referred to. 



Relying on Pictet and Loriol's illustration of C. {Ancyloeeras) 

 tabarelli, Astier, 42 I instituted a comparison between the latter 

 and G. cordycepoides, but now I am in possession of Astier's 

 Memoir, " Catalogue Descriptif des Ancyloeeras," I find the 

 resemblance to Astier's species 4 3 is not so close. There is this 

 manifest difference — C. tabarelli possesses three lines of tubercles 

 on each side the middle line of the venter, whilst C. cordycepoides, 



4lb Etheridge — Loc. tit., p. 1G, pi. ix., figs 2 and 3. 



1 - Pictet and Loriol — Descrip. Foss. Terr. Neoc. Voirons, Pt. 2, 1858, p. 27, 

 pi. v., figs. 1-7. 



* 3 Astier— Ann. Sci. Phys. Nat. Soc. Nat. Agrie. Lyon, (2), iii., 1851, 

 pi. xxi., f. 9. 



