Key to species (males) of Indonemoura from China

1. Epiproct with a large semicircular ventral ridge (Figs. 4, 11, 16, 27, 31 & 50)............. 2

­ Epiproct with ventral ridge far from semicircular (Figs. 22, 35, 39 & 45) ................... 7

2. Outer lobe of paraproct terminating into large single spine (Fig. 29); Jiangxi ............... ....................................................................................................... macrolamellata (Wu)

­ Outer lobe of paraproct with furcated apical spine (Figs. 5, 12, 13, 28 & 51).............. 3

3. Outer lobe of paraproct narrow apically with long straight spine bearing 2 weak subap­ ical spines (Fig. 28); Hubei ...................................................... hubeiensis Yang & Yang

­ Outer lobe of paraproct relatively wide apically with one curved single spine and one curved forked spine (Figs. 5, 12, 13 & 51) ................................................................... 4

4. Epiproct with weak apical incision and ventral ridge wide apically; hypoproct with tiny spines apically (Figs. 48 & 49)… Guangxi .......................................... yangi n. sp.

­ Epiproct with distinct apical incision and ventral ridge narrowing apically; hypoproct without spines apically (Figs. 3, 10 & 15) .................................................................... 5

5. Median lobe of paraproct with a broad rectangular lobe and an adjacent papillate lobe (Fig. 5); Zhejiang, Fujian .............................................................. baishanzuensis n. sp.

­ Median lobe of paraproct without rectangular and papillate lobes (Figs. 12 & 17) ..... 6

6. Apical spines of outer lobe with outer spine forked but proximal spine single; median lobe of paraproct narrow (Fig. 12)… Fujian ................................ fujianensis Li & Yang

­ Apical spines of outer lobe with proximal spine forked but outer spine single; median lobe of paraproct broad (Figs. 13 & 17); Guangdong .................. guangdongensis n. sp.

7. Epiproct with a small ventral projection bearing a row of very small ventral spines (Fig. 39); Tibet .................................................................. tibetensis Zhu, Yang & Yang

­ Epiproct with keel–shaped ridge bearing many distinct spines (Figs. 22, 35 & 45)..... 8

8. Outer lobe of paraproct blade­shaped (Fig. 46); Guangdong........... trispina Li & Sivec

­ Outer lobe of paraproct not blade­shaped (Figs. 23 & 36)............................................ 9

9. Epiproct with two groups of dorsal spines (Fig. 34); Fujian ......... masuensis Li & Yang

­ Epiproct without dorsal spines (Fig. 21); Guangxi, Fujian, Zhejiang............................. .................................................................................................. guangxiensis Li & Yang