Laonome kroeyeri Malmgren 1866

How to Distinguish from Similar Species: Sabellastarte sp has only limbate or slightly spatulate setae on the thoracic notopodia and the uncini are almost S-shaped. Eudistylia spp such as Eudistylia vancouveri have some pickaxe-shaped neuropodial setae.

As with all members of family Sabellidae, most or all segments are at least as wide as long; its surface is not covered by scales, paleae, elytra, or felt; it has featherlike radioles projecting from its head region like a feather duster; and it lives in a secreted chitinous tube. Laonome kroeyeri has radioles whose main stems are not branched dichotomously. Though they have ocelli scattered among the radioles, these ocelli are not obvious and curled spirally around the radioles near their tips. The first 5 or 6 thoracic neuropodia have uncini with short handles. The thoracic neuropodia have avicular uncini but no pickaxe-shaped setae. The uncini have broad bases. The thoracic notopodia have both limbate and spatulate setae.