FIGURE 1 in Taxonomic redescription of Leucandrilla wasinensis (Jenkin, 1908) and L. intermedia (Row, 1909) (Porifera, Calcarea): a first step to improve current knowledge on the typical features of the genus

FIGURE 1. Skeletal organization of the holotype of Leucandrilla wasinensis BMNH 1908.9.25.59. A—Longitudinal section showing the fringe of trichoxeas (arrowhead) that surrounds the osculum, B—Longitudinal section from the cortex (ct) to the atrium (at), C—Microdiactines just below the cortical skeleton and (in detail) protruding from the surface, D—Cortical triactine (left) and tetractine (right), E—Not stained section with a subcortical pseudosagittal triactine (arrowhead), F— Subcortical pseudosagittal triactine (arrow) close to a subcortical lacuna, G—Choanoskeleton composed mainly of triactines and few (arrow) tetractines, H—Subatrial tetractine (arrow) and atrial skeleton.