Caridina gracilirostris, De Man, 1892

Cai, Y. & Ng, P. K. L., 2007, A revision of the Caridina gracilirostris De Man, 1892, species group, with descriptions of two new taxa (Decapoda; Caridea; Atyidae), Journal of Natural History 41 (25 - 28), pp. 1585-1602 : 1601

Key to species of the Caridina gracilirostris group

1. Appendix interna absent from endopod of male first pleopod...... 2

– Appendix interna present at endopod of male first pleopod.. Caridina neglecta

2. Eggs 0.7 mm in diameter or larger.......... C. longifrons

– Eggs no more than 0.6 mm in diameter............. 3

3. Preanal carina with a spine; eggs 0.55–0.66× 0.35–0.40 mm ... C. gracilima

– Preanal carina without spine; eggs 0.40× 0.25 mm ..... C. gracilirostris