Table 1 in First record of the genus Discorhabdella (Porifera, Demospongiae, Poecilosclerida, Crambeidae) from Sagami Bay, Japan with description of two new species

Table 1. Morphological comparison of spicules and geographical distribution of extant Discorhabdella species. Locality is described as ecoregions and province following Spalding et al. (2007). Spicule sizes are given as the range, followed by the mean in parenthesis. All spicule measurements in µm.
SpeciesLocalityDepth (m)Ectosomal subtylostyleChoanosomal style/subtylostylePseudoastrose acanthostyle or acanthostyleIsochelaeSigmaspined microxeaOther microsclereReferencelength × widthlength × widthlength × base widthlength, number of alaelength × widthlength × widthlengthD. hindei Boury-Esnault et al., 1992Alboran Sea, Mediterranean Sea534-604276-445 (367) × 5.2855-1556 (1086) × 34-52 (43)43-57 (48) × 36-39 (38.5)22-27 (23), 8 alae11-16 (12) × 1-1.3 (1.3)nonenoneBoury-Esnault et al. 1992D. incrustans Dendy, 1924Three King‘s North Cape, Northern New Zealand180357-592 (496.8) × 10-15 (12.6)900-1700 × 28-61 (43.1)36-53 (45.4) × 32-43 (37.2)33-51 (44), up to 7 alaenone26-34 (31.4)noneVan Soest 2002D. littoralis Maldonado et al., 2001Nicoya, Tropical East Pacific10-30130-180 × 2.5-4117-300 × 5-1026-40 × 10-18.5none13-15 × 1nonenoneMaldonado et al. 2001D. pseudaster Vacelet & Cárdenas, 2018Western and Northern Madagascar, Western Indian Ocean346-349240-370, 9-10more than 600 × 40-5635-45 × 35-4512-15, 4-5 alaenonenonepseudoaster, 12.5-18 in diameterVacelet and Cárdenas 2018D. ruetzleri Díaz & Pomponi, 2018Floridian, Tropical Northwestern Atlantic60-80260-340 (300) × 3-7.55 (4)470-810 (598) × 5-13 (10.5)17-40 (29.6) × 7.5-20 (15)20-25, unknown12-1815-18noneDíaz and Pomponi 2018D. tuberosocapitata (Topsent, 1890)Azores Canaries Madeira, Lusitanian550-736330c.a. 650 × c.a. 28c.a. 13025, 4-8 alaenonenonenoneBoury-Esnault et al. 1992, Van Soest 2002D. urizae Maldonado et al., 2001Nicoya, Tropical East Pacific55-73180-220 × 5-7380-750 × 19-4223-37 × 15-2626-29, 5 alae13-16 × 119-26 × 2-3noneMaldonado et al. 2001Cortezian, Warm Temperate Northeast Pacific344175-220 (197.5) × 2.5-7.5 (4.75)220-610 (423.3) × 17.5-35 (25.8)30-42.5 (36.6) × 23-3735-42 (36.6), 3 alae15-20 (17.1)15-22.5 (21.6)noneAguilar-Camacho and Carballo 2012D. hispida sp. nov.Central Kuroshio Current, Warm Temperate Northwest Pacific113-223292.2-392.5 (335.4) × 13.4-16.7 (15.2)814-1500 × 42.0-56.5 (50.3)84-127.5 (103.6) × 41.1-57.7 (48.0)27.3-38 (31.7), 3-7 alaenonenonesigmoid microsclere 20.7-31.2 (26.3)this studyD. misakiensis sp. nov.Central Kuroshio Current, Warm Temperate Northwest Pacific255-318203-257 (232) × 10.6-14.1 (11.7)252.0-336.4 (295.2) × 18.6-26.6 (22.6)73.0-91.3 (82.0) × 27.9-42.0 (34.2)17.5-21.9 (19.8), 6 alaenonenonenonethis study