178 82 
W. of Koh Chuen, soft clay and mud (1/2). 
Long. 6:5 mm. 
Distribution: — North Australia, Mast Head Reef (Queensland), Sydney and 
Port Jackson, Flinders (Victoria), New Zealand. 
With regard to the generic name Kellya, it was established by Turron in 1822 
as Kellia. JeErFREYS says that the genus is named after “the Rev. J. M. O'Kelly of 
Dublin,” consequently, it can neither be written Kellia, nor (as Bucguoy, DauTzen- 
BERG and Dorirus write) Kellyia,'! but must be written Kellya. 
Kellya rotunda, Desh. 
Erycina rotunda, Desiayes, Proc. Zool. Soc. London, XXIII, 1855, p. 181, No. 1. 
Kellia -- AnGaS, Proc. Zool. Soc. London, 1867, p. 927, No. 98. 
= = = var., Epc. Smiru, Rep. on the Lamellibranchiata of the Challenger Exped., 
p. 202, pl. XI, fig. 5. 
— — Sowersy, Marine Shells of South Africa, 1892, p. 62, pl. 4, fig. 93. 
— _— - PrircHarp and Gariirr, Proc. R. Soc. Victoria, XVII, 1904, p. 225. 
Koh Kram, 30 fathoms (2). Between Koh Mesan and Cape Liant, 9 fathoms (1). 
Between Koh Mesan and Koh Chuen, 25—88 fathoms, stones and shells (13). 
Long. 3—10 mm. 
Distribution: — Moreton Bay, Newcastle (New South Wales), Sydney and 
Port Jackson, Holdfast Bay (South Australia, Brit. Mus.), Bass Straits. (SOwERBY 
records it from Port Elizabeth and Epc. Smirn from Port Alfred (Cape Colony) ’). 
Probably the forms from South Africa which SowEersy and Epa. Smirn have had 
before them do not belong to DrsHayes’s species from South Australia. SOWERBY’s 
figure does not agree exactly with DesHayes’s diagnosis, but as the figure is very 
bad, nothing definite can be concluded on this basis. Epa. Smiru regards K. rotunda, 
Desh., to be “doubtfully separable” from K. suborbicularis, Mtg.,* and in this he is 
undoubtedly right. Among the specimens collected in the Gulf of Siam both 
Desuayes’s type-form (from Moreton Bay), and the variety Epc. Smirn describes 
and figures from the Challenger Expedition, are to be found. 
Kellya rosea n. sp. 
(PI. Ill, Figs. 19--20). 
This species is almost circular in outline. It is thin and of a dull glass-like 
consistency, pink, gently arching, with fine concentric lines of growth, not parti- 
cularly convex. The umbones, which are situated at about the middle of the 
length of the shell, are slightly elevated above the hinge-line. The hinge consists 
of two cardinal teeth in the left valve and a single one in the right. The right 
valve has also an oblong, flat, triangular lateral tooth, parallel with the hinder 
1 See W.H. Dari, Transact. Wagner Free Inst. Sc. Philadelphia, vol. III, 1895, p. 563. 
* Journal of Malacology, vol. XI, 1904, p. 26. 
8 Annals & Mag. Nat. Hist., (6) X, 1892, p. 132. — Proc. Malac. Soc. London, V, 1902, p. 163. 
