Two new species of sponges (Porifera, Demospongiae) from the Aleutian Islands, Alaska

Two new species of sponges (Porifera, Demospongiae) from the Aleutian Islands, Alaska

Two new demosponges, Megaciella pituitosa and Cladocroce toxifera, are described from the Aleutian Islands, fostering our contention that the region is a hotspot of poriferan biodiversity. Seven of the thirteen species of Megaciella now known worldwide occur in the Sea of Okhotsk or around the Aleut...

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Veröffentlicht in:Journal of the Marine Biological Association of the United Kingdom 2016-05, Vol.96 (3), p.673-680
Hauptverfasser: Lehnert, Helmut, Stone, Robert P.
Format: Artikel
Sprache:eng
Schlagworte:
Cladocroce
Demospongiae
Ethanol
Fisheries
Islands
Marine
Porifera
Scanning electron microscopy
Water temperature
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Stone, Robert P.
description Two new demosponges, Megaciella pituitosa and Cladocroce toxifera, are described from the Aleutian Islands, fostering our contention that the region is a hotspot of poriferan biodiversity. Seven of the thirteen species of Megaciella now known worldwide occur in the Sea of Okhotsk or around the Aleutian Islands. Similarly, five of the sixteen species of Cladocroce known worldwide occur in Alaska. Megaciella pituitosa sp. nov. possesses two categories of choanosomal styles and spicules of different sizes that differentiate it from all known congeners. Cladocroce toxifera sp. nov. differs from all known congeners by possessing toxa and an ectosomal tangential arrangement of oxeas.
doi_str_mv 10.1017/S0025315414001131
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source Cambridge University Press Journals Complete
subjects Cladocroce
Demospongiae
Ethanol
Fisheries
Islands
Marine
Porifera
Scanning electron microscopy
Water temperature
title Two new species of sponges (Porifera, Demospongiae) from the Aleutian Islands, Alaska
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