111 207 
The sound of Koh Chang, 3—5 fathoms, soft clay (*/2). N. of Koh Kong, 8 
fathoms, mud (1/2). 
Long. 14—48 mm. — (Long. 48 mm., alt. 37 mm., crass. 14 mm.) — (Long. 44 mm., 
alt. 31 mm., crass. 15 mm.). 
Distribution: — Tranquebar (SpENGLER and SEIDELIN, Zool. Mus. Copen- 
hagen), Manilla (Zool. Mus. Copenhagen). Epa. Smirn writes to me: “I think ‘Central 
America,’ the locality given by Hantey (T. gubernaculum) is a mistake. We have 
it from Bombay.” I believe here reference is made to the specimens from Bombay 
determined by Metvitt and ABERCROMBIE’ as Macoma truncata, Jonas. As M. trun- 
cata, Jonas, is easily mistaken for the species we are here considering, some of 
the localities given for truncata should undoubtedly be transferred to T. papyracea, 
Spengl. 
As the original specimens of SPENGLER’s papyracea are in the Zoological 
Museum of the University of Copenhagen it has been possible for me to verify the 
fact that the specimens from the Gulf of Siam belong to the same species. I sent 
some of the specimens from the Gulf of Siam to Mr. Epa. Smirn, and he kindly 
informed me that they “agree with gubernaculum of Hanley;” consequently, it is 
proved that HANLeEy’s species should be regarded as a synonym of SPENGLER’s 
papyracea, which name has the priority. Mércn® states that T. truncata, Jonas, is 
identical with 7. papyracea, Spengl., but this is certainly wrong; truncata, according 
to Jonas’s diagnosis, presents several peculiarities which are undoubtedly charac- 
teristic of that species. 
Tellina (Macoma) fallax, Bertin. 
Macoma fallax, V. Bertin, Révision d. Tellinidés (Nouv. Archives du Muséum d'Histoire Naturelle, 2 Sér., 
I, Paris), 1878, p. 343, No. 29, pl. 8, fig. 4. 
Sound of Koh Chang, 3—5 fathoms, soft clay (°%/2). Between Koh Kahdat 
and Koh Kut, 6 fathoms, clay mixed with sand (*%/2). 
Long. 5—29 mm. (long. 29 mm., alt. 17 mm., crass. 12 mm.). 
Distribution unknown. 
Although the shells from the Gulf of Siam do not reach the size of that 
figured by Bertin, and although Bertiy’s brief diagnosis is not of much use as a 
guide, I think I can safely refer my individuals to the present species, which has 
undoubtedly often been confused with T. candida, Lam. 
Tellina (Macoma) lilium, Hanl. 
(Pl. IV, Figs. 1—2) 
Tellina Lilium, Haney, Proc. Zool. Soc. London, 1844, p. 147. 
— _lilium, — Hantey in Sowersy, Thesaur. Conchyl., I, p. 303, No. 158, pl. 58, fig. 85. 
_ = — Reeve, Conchol. icon., XVII, Tellina, Sp. 174. 
1 Mem. and Proc. of the Manchester Liter. and Phil. Soc., 4 Ser., vol. VII, p. 50. 
2 Malakozoolog. Blatter, XVII, 1870, p. 116. 
