75 171 
Distribution: — Off Levuka, Fiji Isls. (Epe. Smirn). 
The fresh, left valve obtained from the Gulf of Siam is about double the size 
of the right valve from the Fiji Islands on which EpG. Smirn founded the species, 
but it exactly agrees with his description. To Ep«G. Smirn’s diagnosis, which is 
otherwise very good, may be added: It is not only on the hinder side that the 
fine transverse striz are a little lamelliform, but also on the anterior side; in the 
left valve are two cardinal teeth, separated by a deepish pit, the anterior is the 
larger; there is, moreover, a corresponding lateral tooth, exactly like the one 
described by Smirn, in the right valve. The interior of the valves have fine, white 
radiating rays, which stop at the pallial line. Luc. pisidium, Dkr., is very closely 
allied to the present species. 
Lucina (Codakia) minima, Ten. Woods. 
Lucina minima, TENIson Woops, Descript. of New Tasmanian Shells, 1875, p. 30 (Proc. R. Soc. Tasmania, 
1876, p. 162). 
= - — Tare and May, Proc. Linn. Soc. New South Wales, 1901, p. 431. 
— — _ PrircHarD and Gatuirr, Proc. R. Soc, Victoria, 1903, XVI, p. 138. 
— (Codakia) Talei, ANGAs, Proc. Zool. Soc. London, 1878, p. 863, pl. 54, fig. 15. 
Between Koh Mesan and Cape Liant, 5—9 fathoms (?/2). Between Koh Kahdat 
and Koh Kut, 6 fathoms, clay mixed with sand (‘/:). Sound of Koh Chang, 3—5 
fathoms, soft clay (2). 
Long. 1—3 mm. 
Distribution: — Singapore, shallow water (Sy. Gap). — Victoria (‘coast 
generally”), Cape Northumberland, Tasmania, St. Vincent’s Gulf. 
Lucina (Loripes) desiderata, Sm. 
Lucina (Loripes) desiderata, Epa. Smiru, Report on the Lamellibranchiata of the voyage of H. M. S. 
“Challenger,” 1885, p. 185, pl. 13, fig. 10. 
Koh Chuen, 10—15 fathoms ('/2). W. of Koh Chuen, soft clay and mud (°/2). 
W. of Koh Kut, 15 fathoms (4/2). S. of Koh Kut, 17—20 fathoms, mud (1/2). 
Long. 3—7 mm., (long. 7 mm, alt. 7 mm., crass. 455 mm.). 
Distribution: South of New Guinea. 
The individuals collected by the “Challenger” Expedition reached a size of 
only 31/3 mm. in length; the largest specimens from the Gulf of Siam measure 
7mm., and are in addition very thin-valved and fragile. The individuals measuring 
3 mm. in length agree exactly with Edg. Smith’s figures; in the larger specimens 
(dead ones) the dentiform projections at the lunule and on the hinder dorsal side 
are not so prominent, but this is perhaps due to a bad state of preservation. 
Lucina (Phacoides), Dalli n. sp. 
(Pl. UI, Figs. 9—12). 
This species is a little higher than long, somewhat inequilateral, moderately 
convex and thick, white, and marked with two (often more) radiating depressions 
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