Table 15 in Phylogeny and revision of Leucaltis and Leucettusa (Porifera: Calcarea), with new classification proposals and description of a new type of aquiferous system

Table 15. Spicule measurements of RoƜella Ʋera Specimen/ReferenceSpiculeActineLength (µm)Width (µm)NMinMeanSDMaxMinMeanSDMaxBMNH 1884.4.22.60 (H)Cortical triactine270.0296.730.6330.020.023.35.830.03Cortical tetractinea---------Pygmy triactine-50.0---5.0--1Pygmy tetractinebasal50.063.810.282.57.510.01.712.510apical70.078.38.887.57.510.02.512.53After Poléjaeff (1883; H)Cortical triactine---450.0-37.5--?Cortical tetractinebasal---800.0-80.0--?apical600.0--2000.060.0--200.0?Pygmy triactine---------Pygmy tetractinebasal50.0--100.05.0--10.0?apical50.0--100.05.0--10.0?After Borojević & Grua (1965)Cortical triactine150.0--350.010.0--20.0?Cortical tetractinebasal300.0--500.0-50.0--?apical---2000.0----?Pygmy triactine55.0--100.0-10.0--?Pygmy tetractinebasal55.0--100.0-10.0--?apical--------- aActines were broken in the preparations and could not be measured. H, holotype.