Aquatic spiders

Argyronetidae Thorell, 1869

(after Montana et al. 2025): Small to large spiders [only tiny in Lathyidae and Dictynidae] with the carapace usually longer than wide, and wider than high (flattened) ([as wide as high or higher than wide in Dictynidae s.s.; anterior median eyes, anterior lateral eyes, posterior lateral eyes and posterior median eyes similar in size [AME usually absent or considerably smaller in Lathyidae]; legs of both sexes, female pedipalp, and male pedipalp cymbium usually with well-defined macrosetae [macrosetae absent or strongly reduced in Lathyidae and Dictynidae]; male pedipalp with the conductor upper arm shorter than the lower arm, the lower conductor arm uncoiled at the tip, and with the tip usually smooth (lacking a scaly appearance) [conductor upper arm longer than lower arm and with a scaly tip in Lathyidae; conductor lower arm usually coiled and with scaly tip in Dictynidae].