Kingsleya Ortmann, 1897

Pinheiro, Allysson P. & Santana, William, 2016, A new and endangered species of Kingsleya Ortmann, 1897 (Crustacea: Decapoda: Brachyura: Pseudothelphusidae) from Ceará, northeastern Brazil, Zootaxa 4171 (2), pp. 365-372 : 371-372

Key to the species of Kingsleya Ortmann, 1897 (modified from Magalhães, 2005)

1. Anterolateral border of the carapace with about 5 to 8 large, acute teeth.......................................... 2

- Anterolateral border of the carapace fringed by set of very faint tubercles or very low, small, rounded teeth.............. 3

2. Gonopod I with apical plate with narrow apex....................................................... K. latifrons

- Gonopod I with apical plate with enlarged apex...................................................... K. ytupora

3. Gonopod I with a large apical plate, distal lobe of the apical plate widened above the field of apical spines in lateral view. 4

- Gonopod I with a narrow, subtriangular apical plate, distal lobe of the apical plate uniform along its entire length........ 6

4. Apical plate of the gonopod I with a dentate or a proximal minute spine-like outgrowth in the midlength of the mesial margin................................................................................................... 5

- Apical plate of the gonopod I with a single large spine-like outgrowth in the midlength of the mesial margin....... K. celioi

5. Apical plate of the gonopod I distinctly enlarged, mesial margin of the distal lobe smooth with a proximal minute spine-like outgrowth..................................................................................... K. junki

- Apical plate of the gonopod I distinctly enlarged, mesial margin of the distal lobe clearly indented............ K. castrensis

6. Apical plate of the gonopod I with proximal lobe usually oblique and distinctly shorter in relation to the distal lobe....... 7

- Apical plate of the gonopod I with both, proximal and distal lobes, juxtaposed in a nearly vertical position along almost all its length..................................................................................... K. hewashimi

7. Gonopod I with field of apical spines well developed, proximal lobe of the apical plate oblique to the distal lobe......... 8

- Gonopod I with field of apical spines reduced, proximal lobe of the apical plate partially involving the lower part of the distal lobe.......................................................................................... K. besti

8. Proximal lobe of the apical plate partially folded over the mesial crest of the field of apical spines.................... 9

- Proximal lobe of the apical plate with conspicuous semicircular protuberance in mesial and sternal views.................................................................................................. K. attenboroughi n. sp.

9. Gonopod I with apical plate not enlarged, angulated on the proximal end of the sternal border.................. K. siolii

- Gonopod I with apical plate enlarged on the proximal end of the sternal border, forming a distinct rounded prominence................................................................................................ K. gustavoi