Biseswar, Ramlall, Glynn, Peter W. (2016). A new coral reef associated species of Echiura, Anelassorhynchus panamensis from the eastern Pacific Ocean. Proceedings of the Biological Society of Washington. 129(1): 56–65.

275680

10.2988/0006-324x-129.q2.56 [view]

Biseswar, Ramlall, Glynn, Peter W.

2016

129(1): 56–65

Publication

http://www.bioone.org/doi/abs/10.2988/0006-324X-129.Q2.56

World Polychaeta Database (WPolyDb). There is a ZooBank registration given but it is not active as at April 2017 (86C75FCD-76C0-4866-B4C0- CB2020206D54)

Available for editors   [request]

A new species of Echiura, Anelassorhynchus panamensis (Family: Echiuridae), is described from the eastern tropical Pacific Ocean. The specimens examined are from collections in the invertebrate museum, Rosenstiel School of Marine and Atmospheric Science, University of Miami, and were collected from a coral reef in Panama. This species is distinguished in possessing a proboscis that is divided distally into numerous lobes of different shapes and sizes, an opaque integument with closely aligned transverse wrinkles, a pair of microscopic ventral setae, two pairs of tubular, postsetal gonoducts with elongated coiled gonostomes and tubular anal vesicles. Peculiar coelomic organs were found in the holotype and in one paratype. This new reef-associated echiuran demonstrated consistently high spatial and temporal abundances. Quantitative sampling of A. panamensis along the Uva Island fore-reef coral rubble/sand microhabitat revealed median population densities between 2?8 individuals per 20 liters of sediment sampled, and median annual densities that ranged between 1 to 7 individuals per 20 liters of sediment over a five-year period (2002-2006).

East Tropical Pacific

Systematics, Taxonomy

Annelida
Echiura

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