Scaleworms

Scaleworms (Family Polynoidae) are a unique group of polychaetes whose dorsa (backs) are covered by pairs of scale-like structures called elytra. The elytra are mounted on elytrophores (short stalks). Elytra are not found on every segment of the body (more or less on alternate segments), but generally the number of pairs of elytra is the same within a scaleworm genus. Scaleworms are carnivores, feeding on small arthropods, snails, polychaetes, sponges and hydroids. Immediately upon metamorphosis from a swimming planktonic larva to a bottom-dwelling juvenile (with only five or six pairs of scales), it becomes carnivorous. Many scaleworms are free-living, but others are commensal: living in an association with another creature whereby neither is harmed, but at least one receives some benefit.

AN30. BRISTLY-TAIL SCALEWORM

Hermadion truncata, Harmothoe truncata, Eunoe spinicirris

AN31. CILIATED SCALEWORM

Gattyana ciliata

AN32. EIGHTEEN-SCALED WORM, armoured scale-worm, common scale worm, scaleworm, scale worm

Halosydna brevisetosa, Polynoe brevisetosa

AN33. FIFTEEN-SCALED WORM, free-living scaleworm, scaleworm

Harmothoe imbricata

AN34. YELLOW AND BROWN SCALEWORM

Harmothoe extenuata, Harmothoe bonitensis, Harmothoe triannulata, Lagisca extenuata, Lagisca rarispina

AN35. FRAGILE RUFFLED SCALEWORM, ruffled scale-worm, frilled commensal scaleworm, fragile commensal worm, fragile scaleworm, scale worm

Arctonoe fragilis, Lepidonotus fragilis, Polynoe fragilis

AN36. RED-BANDED COMMENSAL SCALEWORM, yellow scale worm, scale worm

Arctonoe vittata, Polynoe vittata, Halosydna lordi

AN37. RED COMMENSAL SCALEWORM, dark-spotted scale worm, scale worm

Arctonoe pulchra, Polynoe pulchra

AN38. GIANT FLESHY SCALEWORM

Hololepida magna

AN39. SNOW-SPECKLED SCALEWORM

Lepidasthenia longicirrata

AN40. THORNY SCALEWORM

Eunoe senta, Gattyana senta

AN41. WHITE-BANDED SCALEWORM

Gaudichaudius iphionelloides, Gattyana iphionelloides

AN41A. UNIDENTIFIED SCALEWORM