134 



This species has the general character of V. ccntiscalaris, with 

 rather more ventricose whorls, the cost?B end with obtuse tuber- 

 cular ends separated from a row of conoidal tubercles at the 

 suture by a deep, narrow, spiral constriction. 



Dimensions. — Length, 50 ; breadth, 22 ; length of aperture, 39. 



Localities. — Bird Rock (JIcCojj), and Spring Creek, near Gee-- 

 long (J. B. Wilson!) ; well-sinking, Murray Desert; Table Cape 

 (^R. M. Johnston!). 



This species stands in the same relation to the European 

 Y. cinyulata as Y. antiscaJaris does to Y. scalaris. 



31. Voluta strophodon, McCoy. 



References. — Prod. Pal. Victoria, Decade iv., tab. 37, figs. 2-4 

 (1876). Y. WeJdii (pars.), Johnston, Geol. Tasm., t. 30, fig. 7 

 (1888). 



Shell varying from ovate with a moderate spire to conoidal 

 with a very short spire ; pullus large hemispheric to sub-cylindri- 

 cal of four smooth slightly convex whorls. Ordinary whorls, \\ith 

 a row of spines crowning the shoulder, which is medial in the long- 

 spired form, and at the suture in the conoidal variety ; the area 

 behind the tubercles smooth and concave ; the spines on the body- 

 whorl terminate ribs, which become obsolete at about half way to- 

 the front. Columella with four very large thick plaits, and often 

 Avith a blunt protuberance posteriorly. 



Dimensions of the long-spired form. — Length, 40; breadth, 20; 

 length of aperture, 31; of the conoidal variety: length, 38; 

 width inside spines, 23-5 ; length of aperture, 32*5. 



Localities. — Fyans Ford, Moolap, Schnapper Point !, and lower 

 beds at Muddy Creek ! [McCoy) ; calciferous sandstones, River 

 Murray cliffs, near Morgan ! ; well-sinkings, Murray Desert ; 

 Table Cape {R. M. Johnston). 



If the extreme forms delineated by McCoy, figs. 2 and 4, op. 

 cit., belong to the same species, with which view I am inclined to 

 concur, then Y. stro2)hodon is a more variable species than 

 Y. antiscaJaris, both of which are exceptional in the genus. As 

 pointed out by McCoy, the ordinary form of Y. strophodon pre- 

 sents some resemblance to Y. sp>inosa, Lamk. ; but the resem- 

 blance of the conoidal variety to Y. at! J eta, Solander, is even 

 greater. These two species of the European Eocene are readily 

 distinguished by the small conical pullus and by the one or two 

 prominent columella-folds succeeded by two or three indistinct 

 ones. 



32. Voluta VTeldii, Tenison Woods. 

 Reference. — Proc. Roy.Soc, Tasmania, for 1875, p. 24, tab. 1,, 

 fig. 2 (1875) ; Johnston, Geol. Tasm., t. 30, figs. 6 — 66 (non 7),. 



1888. 



