155 251 
“Tles du golfe de Siam” (L. Moret). 
Distribution: — New Guinea, North and North-west Australia. 
This species does not occur among the material brought home by the Danish 
Expedition to Siam, and DauTrzenBperG and Fiscner think! that probably it is 
Dosinia Gruneri, Phil., which Morver records from the Islands in the Gulf of Siam 
under the name of D.contusa, Reeve. 
Dosinia pubescens, Phil. 
Cytherea (Artemis) pubescens, Puitipri, Abbild. u. Beschreib. neuer od. wenig gekannt. Conchyl., Ill, 1847 
(1851), p. 24 (36), pl. 8, fig. 3. 
Artemis pubescens, Puitipr1, SowerBy, Thesaurus Conchyl., Il, p. 672, No. 64, pl. 148, fig. 72. 
Dosinia -_ — ROmeEr, Monogr. d. Moll. Dosinia, p. 79, No. 96, pl. 15, fig. 1. 
Koh Kahdal, 1—5 fathoms, sand (1). North of Koh Kahdat, 4—5 fathoms, 
coarse sand (‘/2). Koh Mak, sandy coast ('/2:). West of Koh Kut, 30 fathoms, sand 
and mud (!/2). 
Long. 5—20 mm. 
Distribution: — Bombay, Mekran Coast, Aden, Madagascar, Durban. — 
Philippines, Labuan (N. Borneo), New Holland. 
All the specimens from the Gulf of Siam are young, and the lamellae which 
limit the convex aréa are therefore not so well-developed as in oider individuals. 
In one of the specimens from Koh Kahdat the apices are red and the umbones 
are ornamented with reddish-brown zig-zag lines and spots. Mertvitt and ABER- 
CROMBIE” say also “Young specimens are nearly circular, silky in appearance and 
often tinged with pink.’ Epc. SmirH” unites with this species the following: — 
D. scabriuscula, Reeve (? of Puitippr), D. ovalis, Romer, D. eunice, A. Adams, and 
D. bisecta, Reeve (?) (i.e. biscocta, Reeve), the last species is recorded from Japan. 
Cyclina elegans, H. Ad. 
(Pl. V, Figs. 14—15). 
Lucina elegans, H. ApAMs, Proc. Zool. Soc. London, 1870, p. 791. 
Gulf of Rayong, 7—10 fathoms, sand, mud, shells (2). 
Long. 7 mm., all. 7 mm., crass. 5 mm. 
Distribution:— Red Sea (M’ ANDREW). 
By examining H. Apams’s original specimens in the British Museum I have 
convinced myself that my specimens from the Gulf of Siam are identical with 
Lucina elegans, H.Adams.' It is, however, incorrect when Apams refers that species 
to the genus Lucina, it being a Cyclina; as his diagnosis is deficient and also par- 
tially misleading, I give here a description and figures of my individuals: — Valves 
1 Journal de Conchyliologie, vol. 54, 1906, p. 216. 
° Memoirs and Proceed. of the Manchester Lit. and Phil. Soc., 4 Ser., vol. 7, p. 45. 
* Proc. Zool. Soc. London, 1891, p. 421. 
* Mr. Epe. A. Smiru has kindly verified my determination. 
