Scleropactoides, Schmidt, 2007

Schmidt, Christian, 2007, Revision of the Neotropical Scleropactidae (Crustacea: Oniscidea), Zoological Journal of the Linnean Society 151, pp. 1-339 : 37-38

SCLEROPACTOIDES GEN. NOV.

Type species: Sphaeroniscus curvatus sp. nov.

Diagnosis

Scleropactids with exoantennal conglobation. Distinct transverse groove on cephalothorax evenly curved. Unspecialized coxal plates. Pleopods with at most very

KEY TO THE SPECIES OR FORMS OF SCLEROPACTOIDES

1. Upper margin of frontal shield between lateral lobes and the median part curved. Male pleopod 1 exopodite without respiratory fields........................................... Scleropactoides tukeitanus ( Van Name,1936)

1.* Upper margin of frontal shield between lateral lobes and median part with an obtuse angle.................2

2. Linea supraantennalis medially downcurved. Male pleopod 1 endopodite with very acute tip, exopodite with very narrow marginal (?respiratory) field..................................... Scleropactoides curvatus sp. nov.

2.* Linea supraantennalis straight or absent (?).........................................................3

3. Pale with dark brown transverse bands along the hind margins of the tergites. Male pleopod 1 endopodite with acute tip, exopodites 1 and 2 with narrow respiratory fields............. Scleropactoides guianensis ( Van Name,1936)

3.* Coloration different; male pleopod 1 endopodite with truncate tip, exopodites 1 and 2 without respiratory fields.................................................. Scleropactoides bonitanus ( Van Name, 1942) narrow vestiges of respiratory fields, if present at all. Male pereiopod 7 merus with triangular lobe. Male pleopod 1 endopodite with very slender distal portion.

Derivation of the name

Scleropactes + suffix ‘-oides’, meaning ‘similar to Scleropactes ’.