Key to world species of Tectovalopsis

1a. Gnathopod 2 palm short and weakly acute ................................................................................ ................................................................................. T. wegeneri J.L. Barnard and Ingram, 1990

1b. Gnathopod 2 palm long and strongly acute ......................................................................... 2

2a. Epimeron 2 posteroventral spine short; urosomite 3 with erect dorsal keel ................. .................................................................................. T. diabolus J.L. Barnard and Ingram, 1990

2b. Epimeron 2 posteroventral spine large; urosomite 3 with almost flat or concave dorsal surface .................................................................................................................................... 3

3a. Pleonite 3 with posterodorsal spine ... ... T. regelatus J.L. Barnard and Ingram, 1990 3b. Pleonite 3 lacking posterodorsal spine ................................................................................... 4

4a. Mandible incisor smooth; uropod 3 inner ramus shorter than article 1 of outer ramus ........................................................................................ T. fusilus J.L. Barnard and Ingram, 1990

4b. Mandible incisor dentate; uropod 3 rami subequal............................................................ 5

5a. Epimeron 1 posteroventral corner with a short spine; urosomite 2 with a medium dorsal tooth .......................... .......................... T. nebulosus J.L. Barnard and Ingram, 1990

5b. Epimeron 1 posteroventral corner lacking spine, rounded; urosomite 2 dorsally smooth .............................................................................................................................................................. 6

6a. Coxa 1 mostly covered by coxa 2; urosomite 1 posterodorsal spine large .................... ................................................................................................................................ T. potiguara sp. n.

6b. Coxa 1 not covered by coxa 2; urosomite 1 posterodorsal spine small .......................... .......................................................................................... T. ruffoi (Serejo and Wakabara, 2003)