Character analysis of the various species of the marine interstitial family Latiremidae revealed that they should be placed in at least three genera instead of the single genus Delamarella Chappuis. The original type genus Latiremus Bozic is reinstated and comprises L. eximius only. The mediterranean genus Delamarella includes D. arenicola, D. karamani and D. galateae; the latter two probably constitute a separate taxon. D. phyllosetosa is removed from the genus Delamarella and is considered the type species of a new genus Arbutifera. The significance of characters such as the incorporation of the first pedigerous somite, the fusion of the genital somites and the antennal segmentation is stressed. Two main evolutionary lineages are recognized within the Latiremidae. Latiremus and Arbutifera are linked on the basis of the fine morphology of the lateral caudal rami setae.
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