EXPLANATION OF PLATE X. 
Photographs of Shei^IvS. 
Stcnothyra decapitata, sp. nov. 
Fig. I. — Eleven specimens from the Tai-Hu, x 7. 
Hypsobia minuscula, sp. nov. 
Fig. 2. — Eleven specimens from the Tai-Hu, x 7. 
Pscudovivipara hypocrites, gen. et sp. nov. 
Figs. 3, 3a. — Type-shell, x 2. 
Vivipara lapillorum (Heude). 
Fig. 4. — Shell from the Tai-Hu without epidermal cilia, x 2. 
Fig. 5. — Young shell from the same lake, x 2. 
Fig. 6. — Shell with epidermal cilia from the same locality, x 2. 
Modiola lacustris, v. Martens. 
Figs. 7, 8, 9.— Three shells from the Tai-Hu, all x 2. 
Corbicula sandai, Reinhardt. 
Fig. 10. — 'Shell from the Tung-Ting Lake, Central China, Nat. size. Identified 
by (?) von Martens as C. fluminea, Miill. 
Figs, ii, 12. — Shells from the Tai-Hu. Nat. size. 
Fig. 13. Internal view of a shell from the Tai-Hu, x 5. 
Area granosa, Linn. 
Figs. 14, 15, 16. — Shells of the var. minuta, Neumayr purchased in a living condi- 
tion at Moo-Too near Tai-Hu, but said to have been brought 
from Ningpo. Nat. size. 
Fig. 17. — Shell of a small phase from Singapore purchased in the market and 
said to have come from the harbour. Nat. size. 
