Platyarthridae Verhoeff, 1949

Bezerra-Pereira, Carlos Anderson Soares, Grangeiro, Daniela Correia & Lima, Lucas Ramos Costa, 2023, A new genus and two new species of Platyarthridae Verhoeff, 1949 (Crustacea: Isopoda: Oniscidea) from Brazil, Zootaxa 5325 (3), pp. 436-450 : 448-449

Key to the genera of Platyarthridae Verhoeff, 1949

1 Granular tegument or with conical tubercles................................................................ 2

- Smooth tegument..................................................................................... 3

2 Granular tegument with conical tubercles....................................................... Echinochaetus

- Granular tegument, without conical tubercles.......................................................... Gerufa

3 Back covered with fan-shaped or ovoid setae............................................................... 4

- Back covered with spear-point setae........................................................... Lanceochaetus

4 Respiratory areas present in some species............................................................ Niambia

- Respiratory areas absent................................................................................ 5 5 Frontal line present......................................................................... Papuasoniscus

- Frontal line absent or interrupted......................................................................... 6

6 Fifth article of the antennal peduncle robust....................................................... Platyarthrus

- Fifth article of the antennal peduncle is similar to the others.................................................... 7

7 Cephalothorax compressed anteroposteriorly and very wide......................................... Cephaloniscus

- Cephalothorax not compressed........................................................................... 8

8 First maxilla with absence of pectinate teeth........................................................ Trichorhina

- First maxilla with pectinate teeth....................................................... Paratrichorhina n. gen.