REPORT ON THE LAMELLIBRANL'HIA TA. ,201 



Family Kelliid^. 

 KelUa, Turton. 

 Kellia suborbicularis (Montagu), 



Ml/a siihorhiciilaris, Montagu, Test. Brit., pt. i. p. 39, .and pt. ii. p. 564, Suppl., pi. xxvi. fig. 6. 



Kdlia suborbicularis, Turtou, Dithyra Urit., p. 56, pi. xi. figs. 5, 6. 



Kellia suborbicularis, Forbes and Hanley, Brit. Moll., vol. ii. p. 87, pi. xviii. figs. 9, 9a, 96, 



and Pi. O fig. 4. 

 Kellia suhorJiicidaris, II. and A. Adams, Genera Rec. Moll., vol. iii. pi. cxiv. figs. 8-8c'. 

 Kellia suborbicularis, Jefireys, Brit. Couch., vol. ii. p. 225, voL v. jjI. xxxii. fig. 2. 



Habitat. — Station 149d, Royal Sound, Kerguelen, in 28 fathoms; volcanic mud. 



Two specimens from this locality I cannot distinguish from this well-known 

 European species, which has not, I believe, been previously met with farther south than 

 the Canary Islands. One of them exhibited a very trifling difference in the hinge-plate, 

 which was not, however, maintained by the second example. 



Kellia nuculina, Martens (PI. XL figs. 4-46). 



Kellia nuculina, Martens, Sitzungsberichte GeseUsch. naturf. Freunde, EorUn, 1881, p. 79. 

 Testa minuta, ovata, albida vel pallide straminea, nitida, concentrice minute striata, 

 modice couvexa, inaequilateralis ; umbones involuti, multum promiuentes. Dentes 

 cardinis validi, lateralibus apice haud remotis. 



This minute shell is ovate, rather inequilateral, fairly convex, whitish, glossy, 

 iridescent, and sculptured with very fine lines of growth. The ends are almost equally 

 rounded, but the anterior is a trifle narrower than the posterior. The beaks are not very 

 acute at the tips, and rather elevated above the curved hinge-line. The dentition of thi 

 little shell is rather well-marked. The right valve has a well-developed cardinal tooth in 

 front of the umbo, and a second very slender one above, between it and the dorsal edge. 

 The hinder lateral tooth in this valve is almost as near the beak as the cardinals, elevated, 

 and separated from the outer margin by a broad deep groove. The two cardinals of the 

 left valve are united above, forming a single angular tooth, and the posterior lateral is 

 thick and elevated. The hinge-plate is continuous under the beaks, so that a rather 

 large and somewhat triangular space occurs for the reception of the ligament. 



Length 4-i- mm., height 3-J, diameter 2. 



Habitat. — Ofi' Christmas Harbour, in 120 fathoms; and Balfour Bay, Kerguelen 

 Island, in 20 to 60 fathoms ; also ofi" Prince Edward Island, in 50 to 150 fathoms. 



This species may at once be distinguished from Kellia suborbicularis by its diff"erent 

 hinge and form. Not feeling perfectly certain with regard to the identification of these 

 specimens, I therefore have given the above description. 



(ZOOL. CUALL. EXP.— PAKT XXXV.— 1885.) Mm 26 



s 



