Pseudomma kryotroglodytum sp. nov., paratype subadult female BL 21.5 mm (A, B) and Dactylamblyops sp., adult female 21.8 mm (C, D); A ventrally orientated depression mid-dorsally on basal segment of right antennula, dorsal aspect B detail of panel (A), arrow points to striated pad on bottom of depression, dorsal C depression as in panel (A) for left antennula in another genus, lateral aspect, the short arrow points to mineral particles D detail of panel (C), the long arrow points to striated pad, lateral. A, antennular depression somewhat caudally tilted by the pressure exerted by the cover glass.