Zoogeography of the echiuran fauna of the East Pacific Ocean (Phylum: Echiura)
Author
Biseswar, Ramlall
text
Zootaxa
2012
3479
69
76
journal article
44404
10.5281/zenodo.282351
b91f67d2-9672-4546-bc03-a70a0c4422fe
1175-5326
282351
D097E1C5-37F3-45F7-8022-3C063B2A667D
Subfamily
Thalassematinae
Description.
Rings of setae around the posterior or anal region of the trunk lacking. Proboscis long and truncate. Post-pharyngeal diaphragm absent.
Genus
Anelassorhynchus
Annandale, 1922
Description.
Posterior setae absent. Longitudinal and inner oblique layers of muscle not grouped into bands or fascicles. Gonostomal lips elongate and spirally coiled.