Echiura (commonly called spoon worms) are derived annelids that have an unsegmented
sausage-shaped body with a highly extensible anterior end (ie a proboscis). Echiura …

Dead coral rocks are prevalent hard substrates in shallow warm waters, providing habitat for
various infaunal and boring invertebrates. Despite this, the nature of species interactions …

Because almost all marine trace fossils were produced in underwater settings such as
shoreface, offshore, continental shelf, slope, trench, and abyssal plain, investigating their …

Echiura is one of the most intriguing major subgroups of phylum Annelida because, unlike
most other annelids, echiuran adults lack metameric body segmentation. Urechis unicinctus …

The morphological diversity of marine annelid larvae is stunning. Although many of the
larval forms have been categorized as trochophores or modified trochophores, there are a …

Ikeda taenioides (Ikeda, 1904)(Annelida: Thalassematidae: Bonelliinae) is the world's
longest spoon worm species, which possesses an extremely long tape-like proboscis with a …

Abstract Sagamiscintilla thalassemicola (Bivalvia: Galeommatoidea: Galeommatidae sensu
lato) is a white-robed commensal clam that lives on the body surface of spoon worms …

Echiura is small group of unsegmented marine worms that are sometimes abundant in the
benthos of all areas of the World Ocean. The study of echiuran morphology and anatomy is …

The monotypic polynoid genus Arctonoella Buzhinskaja, 1967 comprises solely the type
species A. sinagawaensis (Izuka, 1912), which was originally described from Tokyo Bay …

The life cycle and precopulatory mate guarding behavior of the poecilostomatoid copepod
Goidelia japonica associated with the spoon worm Urechis unicinctus (Echiura) are …