Nephtys is a genus of marine catworms. Some species are halotolerant to a degree in that they can survive in estuaries and estuarine lagoons down to a salinity of 20 psu (Practical Salinity Units).
Species The following species are recognised in the genus Nephtys:
Nephtys abranchiata Nephtys acrochaeta Nephtys assignis Nephtys assimilis Nephtys bangladeshi Nephtys bilobatus Nephtys brachycephala Nephtys brevibranchis Nephtys bruuni Nephtys bucera Nephtys caeca (Fabricius, 1780) Nephtys caecoides Nephtys californiensis Nephtys capensis Nephtys chemulpoensis Nephtys ciliata (Müller, 1788) - typetaxon Nephtys cirrosa Nephtys cryptomma Nephtys cuvieri Nephtys discors Nephtys dussumieri Nephtys ectopa Nephtys ferruginea Nephtys fluviatilis Nephtys furcifera Nephtys glabra Nephtys glossophylla Nephtys gravieri Nephtys hombergii (Savigny in Lamarck, 1818) Nephtys hudsonica Nephtys hystricis Nephtys imbricata Nephtys impressa Nephtys incisa Nephtys inornata Nephtys kersivalensis Nephtys longipes Nephtys longosetosa (Örsted, 1842) Nephtys magellanica Nephtys mesobranchia Nephtys monilibranchiata Nephtys monroi Nephtys multicirrata Nephtys neopolybranchia Nephtys oculata Nephtys panamensis Nephtys paradoxa Nephtys pente Nephtys phasuki Nephtys phyllocirra Nephtys picta Nephtys polybranchia Nephtys punctata Nephtys quatrefagesi Nephtys rickettsi Nephtys sachalinensis Nephtys schmitti Nephtys semiverrucosa Nephtys serrata Nephtys simoni Nephtys singularis Nephtys sinopensis Nephtys spiribranchis Nephtys squamosa Nephtys sukumoensis Nephtys triangula Nephtys tulearensis Nephtys yuryi
References
ERMS: The European Register of Marine Species MarLIN: The Marine Life Information Network for Britain and Ireland