181 



Genus Solecuktus. 

 synopsis of the species. 

 ^Roundly truncated anteriorly. 



Posterior side broader ; grooves on the umbonal slope an- 

 gularly turned back. S. Legrandi. 

 Posterior side narrower, grooves hardly curved on the 

 umbonal slope. S. Dennanti. 

 Acutely rounded anteriorly, grooves roundly curved on the 

 umbonal slope. S. ellipticus. 



Solecurtus Legrandi, spec. nov. Plate xvii., fig. 15. 



Transversely-oblong, thickish, gaping at both ends, slightly 

 convex, but medially and antero-dorsally depressed ; inequi- 

 lateral, the posterior side about three-fifths the whole length, 

 anterior side narrower than the posterior. Front-dorsal line 

 straight, perceptibly sloping, and slightly incurved, post-dorsal 

 margin rather abruptly ecurved ; ventral margin horizontal, 

 curving upwards more abruptly at the front than behind ; 

 anterior margin roundly truncated. Umbones small, approxi- 

 mate, recurved, hardly projecting beyond the dorsal margin. 



Surface shining, white, blotched with brown about the middle 

 and posterior regions ; ornamented with distant linear concen- 

 tric grooves and stria? ; radially finely striated on the anterior 

 slope. The sculpture consists of engraved lines en clievron, 

 radiating from the umbo to the posterior and ventral margins, 

 not extending on to the area limited by a line drawn from the 

 umbo to front ventral angle ; the anterior limb of each sculp- 

 ture line is arched — the convexity towards the front dorsal 

 side, and its continuity interrupted by the concentric grooves ; 

 the posterior limb is straight, with a wavy outline. 



Dimensions. — Antero-posterior diameter, 40 ; umbo-ventral 

 diameter, 17'5 ; sectional diameter, 10 millimetres. 



Locality. — Table Cape (Hohart Mus. /). 



By the courtesy of the Council of the Eo} r al Society of Tas- 

 mania, I have had under examination the unique type of Sole- 

 curtus Legrandi, T. Woods, Proc. Key. Soc, Tasm., for 1S75, 

 p. 25, pi. 3, f. 14 ; but as the figure incorrectly represents the 

 shell with abruptly truncated extremities, which is otherwise 

 imperfect, and the diagnosis accords therewith, I have deemed 

 it advisable to refigure and redescribe the fossil. As it would 

 lead to confusion to retain the Eev. J. E. Tenison-Woods' 

 authority for the species, it appears here under the original 

 name as a new species. 



Solecurtus Dennanti, spec. nov. Plate xvi., fig. 17. 

 Transversely-oblong, moderately thick, gaping at both ends ; 

 posterior side about two-thirds the whole length ; moderately 



