placopegma_plumicomum_spicules.jpg

Spicules of Placopegma plumicomum, holotype

A: dermal hexactin; B-E, G: dermal pentactins; F: dermal stauractin; H: atrial pentactin; I: anchorate prostalia basalia; J: central part of choanosomal diactins; K,L: outer ends of choanosomal diactins; M,N : prostalia marginalia diactin; O: plumicome; P: discohexaster, Q: disc of discohexaster.

From :Tabachnick, K.R.; Lévi, C. 2004. Lyssacinosa du Pacifique sud-ouest (Porifera: Hexactinellida). in: Marshall, B.; Richer de Forges, B. (eds), Tropical Deep-Sea Benthos 23. Mémoires du Muséum National d'Histoire Naturelle 191: 11-71.

Photographer: Tabachnick & Levi. Publisher: Dagaeff, Anne-Cecile.