On ISonie Islew ISpecies of Victorian Mollusca. 339 



Observations. — Three species of this genus have already been 

 been clese-ribpfl tioni Australia : C. murrayi, Smith, in the Chal- 

 lenger Report, "and C. favus, Hedley, and C. obliquus, Hedley, in 

 the Memoirs of the Australian Museum. Our species, though 

 closely related in many respects to the above, yet appears to be 

 (juite distinct from any of them. We have submitted specimens 

 to Mr. Hedley, and he has kindly compared them with the types 

 as those named by him, and he considers that ours is different. 



Tellina kenyoniana, sp. nov. 



Description. — Shell oblong, oval, somewhat solid, inequivalve, 

 almost equilateral, somewhat tumid, posterior side slightly longer 

 and narrower than the anterior, both valves are densely concen- 

 trically striated, the striae occasionally anastomise, and at the 

 ventral margin and each end, become erect and sharp, and under 

 the lens, these striae are finely transversely striated on their 

 lower side. The ventral edge is, under the lens, very finely and 

 densely transversely striate. The ligament is large and promin- 

 ent. Colour white, with a clouding of reddish-yellow in the um- 

 bonal i-egion ; with about nine, narrow, somewhat indistinct, rays, 

 of the same colour, extending from thence to the ventral margin ; 

 inside tinted with pale purple. Pallial sinus relatively small. 



Dimensions. — Antero-posterior <liameter, 61 mm. Umbo- 

 ventral diameter, 35 mm. 



Locality of type. — Airey's Inlet ; odd valves found on beach 

 at Portsea and Rye. 



Explanation of Plate XX. 



Fig. 1. — Tellina kenyoniana, sp. nov., exterior of left valve. 



Natural size. 

 ,, 2. — Tellina kenyoniana, sp. nov., exterior of right valve. 



Natural size. 

 ,, 3. — Tellina kenyoniana, sp. nov., interior of left valve. 



Natural size. 

 ,, 4. — Tellina kenyoniana, sp. nov., interior of right valve. 



Natural size. 

 ,, 5. — Cyclopecten nepeanensis, sp. nov. Enlarged 4 



diameters. 



