A NEW VESTIMENTIFERAN (POGONOPHORA, OBTURATA) FROM HYDROTHERMAL VENT FIELDS IN THE MANUS BACK-ARC BASIN (BISMARCK SEA, PAPUA-NEW-GUINEA, SOUTHWEST PACIFIC-OCEAN)

Authors
SOUTHWARD EC GALKIN SV
Citation
Ec. Southward et Sv. Galkin, A NEW VESTIMENTIFERAN (POGONOPHORA, OBTURATA) FROM HYDROTHERMAL VENT FIELDS IN THE MANUS BACK-ARC BASIN (BISMARCK SEA, PAPUA-NEW-GUINEA, SOUTHWEST PACIFIC-OCEAN), Journal of Natural History, 31(1), 1997, pp. 43-55
Citations number
36
Categorie Soggetti
Zoology
Journal title
Journal of Natural History → ACNP
ISSN journal
00222933
Volume
31
Issue
1
Year of publication
1997
Pages
43 - 55
Database
ISI
SICI code
0022-2933(1997)31:1<43:ANV(OF>2.0.ZU;2-R
Abstract
In the Manus Basin vestimentiferan tube worms occur between lava pillo ws in diffuse hydrothermal effluent emerging through crevices (tempera ture 10-15 degrees C) near the northeastern end of the Manus Spreading Centre. The tubes grow in low, tangled clumps. The tubeworms are desc ribed here as a new species, new genus and new family. They have a nar row obturaculum with a small, smooth apex, a basibranchial blood suppl y to the pinnulate filaments, and no outer sheath lamellae. The new ge nus is distinct from the two vestimentiferan genera already known from the Lau Basin, which is ca 3000 km east of the Manus Basin. It is not , apparently, closely related to the vestimentiferans of the East Paci fic Rise.