Key to all known species of Cameronia Basir, 1948

1. Eggs laid fused....................................................................................... 2

- Eggs laid not fused.................................................................................... 5

2(1). Two eggs fused....................................................................................... 3

- Three eggs fused..................................................................... C. triovata Shah,2007

3(2). Two eggs fused and not ridged........................................................... C. biovata Basir,1948

- Two eggs fused and ridged.............................................................................. 4

4(3). Spicule 32µm long........................................................ C. klossi Parveen & Jairajpuri, 1984

- Spicule 38–43µm long........................................................... C. travassosi Farooqui 1968

5(1). Male less than 2.160mm long; oesophagus less than 564µm long in female........................................ 6

- Male 2.160–2.270mm long; oesophagus 564–644µm long in female............... C. laplatae Reboredo & Camino, 2001

6(5). Spicule present....................................................................................... 7

- Spicule absent.................................... C. aspiculata (Farooqui, 1970) Adamson & Van Waerebeke, 1992

7(6). Female tail conical.................................................................................... 8

- Female tail with a terminal spike........................ C. psilocephala (Rao,1958) Adamson & Van Waerebeke, 1992

8(7). Lobed cardia present......................................................... C. basiri Rizvi & Jairajpuri, 2002

- Lobed cardia absent................................................................................... 9

9(8). Male tail with a thorn-like process on its ventral side............................... C. multiovata Leibersperger, 1960

- Male tail without a thorn like process on its ventral side...................................................... 10

10(9). Egg=111–126 x 39 –43µm; spicule=19–22µm..... C. nisari (Parveen & Jairajpuri, 1985) Adamson & Van Waerebeke, 1992

- Egg = 102.06–109.35 x 32.80–38.88µm; spicule=10.36–13.18µm......................... C. manipurensis Shah, 2007