Arrhopalites plectrifer Hüther, 1963: 519 –521, figs. 1–11.

Type locality: El Salvador.

Cochlearifer ­group. Total length, ~1.0 mm. Ant. III swollen basally, with a clear papilla. Ant. IV divided into five subsegments. All ungues with a small inner tooth, and tunica. First and second unguiculi with corner tooth, apical filament exceeding the unguis tip in all unguiculi. Dental chaetotaxy in table 3, ventral dental formula 3: 2: 1: 1. Anal valve chaetotaxy in table 2, no cuticular spines on anal valve.

Biogeographic zone 24a.