== 487 
1817. Cristaria — tuberculata 
1825 ? Mytilus plicatus 
1825. Barbala plicata 
1825. Anodonta — Dipsas 
1830. Symphynota  Bi-alata 
1831. = — 
1835. Unio bi-alata 
SCHUMACHER, Nouv. Syst., 
Da lOmepleXeX, tres: 2: 
SOLANDER in GRAY, On the 
Structure of Pearls and 
on the Chinese mode of 
producing these in Ann. of 
Philosophy, new ser., vol. 
IX, p. 27-29. 
Gray, ibid. p. 28. 
BLAINVILLE, Man. de Ma- 
lac. p. 538, pl. 66, fig. 2. 
LEAvotre Am. Phil Sec 
new ser. III, p. 445, pI. XIV, 
fig. 24. 
Lira, Obs. G: Unio 1, p. 59, 
pl. XIV, fig. 24. 
DESHAYES, in LAMARCK, 
Anim. s. Vert., 2° éd. VI, 
p. 558. 
1838. Margarita (Dipsas) plicatus Lea, Synopsis p. 28. 
1839. Unio bialatus 
1839. Dipsas plicatus 
1843. Unio  bialata Desh. 
1845. Dipsas plicatus 
1845. Unio bialatus Desh. 
1847. Anodonta (Dipsas) herculea 
DresHayes, Traité élém. de 
Conch: p. 195 pl. XXX, 
fig . 3. 
Sowerby, Conch. Manual, 
pl. VIII, fig. 142. 
HANLEY, Biv. Sh. p. 244, 
pl. 22, fig. 4. 
CHenu, Bibl. Conch. III 
(Leach), p. 15, pl. 6, fig. 4. 
CaTLow et Reeve, Conch. 
Nomencl., p. 06. 
MippeNporrr, Bull. Phys. 
Math. Ac. Sc. Petersb. VI, 
p. 303. 
