Curly filament-worms

The curly filament-worms (Family Cirratulidae) are a diverse group of polychaete worms that are reproductively fascinating. Most species, have both male and female worms that reproduce sexually through broadcast (free) spawning as epitokes (see sea-nymphs, p. 144). Brooding in jelly-like egg masses has been observed in some, possibly including the intertidal filament-worm (AN59), although other species of Cirratulus are known to reproduce both sexually and asexually. Both the coralline-encased filament-worm (AN57) and the fringed filament-worm (AN58), however, are masters of asexual reproduction. They are capable of fragmenting their bodies within their tubes and then regenerating the missing anterior or posterior ends. Colonies can contain both males and females or house only unisexual individuals. Life is not always what it appears!

AN57. CORALLINE-ENCASED FILAMENT-WORM, coralline fringed tube worm

Dodecaceria concharum

AN58. FRINGED FILAMENT-WORM, fringed tubeworm, Fewke’s fringed worm, colonial tubeworm, honeycomb worm, cemented tube worm, black tube-building cirratulid worm

Dodecaceria fewkesi, Sabella pacifica, Dodecaceria pacifica, Dodecaceria fistulicola, misspelled: Dodecaceria feweksi

AN59. INTERTIDAL FILAMENT-WORM

Cirratulus sp.* (possibly Cirratulus cingulatus or Cirratulus robustus)