All-inclusive descriptions of new freshwater snail taxa of the hyperdiverse family Tateidae (Gastropoda, Caenogastropoda) from the South Island of New Zealand

Four new species and one subspecies of tateid freshwater gastropods are described from the north South Island New Zealand, Catapyrgus jami sp. nov., Opacuincola lisannea O. gretathunbergae mete kahurangi ssp. nov. Obtusopyrgus farri The integratively defined based on a combination shell morphological, anatomical mitochondrial DNA data. Morphological data were generated by morphometrics, scanning electron microscopy, as well micro-computed tomography. genetic basis phylogenetic analyses incorporated into diagnoses. taxa occur in springs or spring-like habitats, i.e., shallow, slow-flowing sections small streams except for subsp. which was collected rough rocks river, where snails sat depressions. None exceeded 2.75 mm length. pigmented true crenobionts, while C. sympatric have eyes reduced size lack epidermal pigment, hence, probably dwell transitional zone epigean groundwaters.