Cirolana andamanensis, Eknarin Rodcharoen, Niel L. Bruce & Pornsilp Pholpunthin, 2016

Eknarin Rodcharoen, Niel L. Bruce & Pornsilp Pholpunthin, 2016, Description of four new species of the Cirolana ‘ parva group’ (Crustacea: Isopoda: Cirolanidae) from Thailand, with supporting molecular (COI) data, Journal of Natural History 50 (31 - 32), pp. 1935-1981 : 42-43

Key to the species of the cirolana ‘ parva group ’ in Thailand

1. Antennula peduncle with three articles; male pereopod 1 without setal fringe; penes two low tubercles, penial openings separated by 3% of sternal width; uropod peduncle ventrolateral margin with one sensory seta........ C. andamanensis sp. nov.

Antennula peduncle with four articles; male pereopod 1 with setal fringe; penes two low tubercles, penial openings separated by 12 – 13% of sternal width; uropod peduncle ventrolateral margin with three sensory setae.................................................... 2

2. Pleonite 3 with posterolateral margins extending to but not beyond posterior margin of pleonite 5; pleopod 1 endopod with lateral margin concave, appendix masculina 1.4 times as long as pleopod endopod............ ........... C. phangnga sp. nov.

Pleonite 3 with posterolateral margins extending clearly beyond posterior margins of pleonites 4 and 5; pleopod 1 endopod with lateral margin straight, appendix masculina length greater than 1.4 times as long as pleopod endopod.. ................... 3

3. Uropodal rami apices equally and bifid; appendix masculina lateral margin curved, 1.6 times as long as pleopod endopod.. ..................... .................... C. siamensis sp. nov.

Uropodal rami apices with lateral process prominent; appendix masculina lateral margin straight, 1.9 times as long as pleopod endopod ......... C. thailandica sp. nov.