TABLE 1 in Eleven new heteroscleromorph Demospongiae (Porifera), and a new record of the tetractinellid Ancorina corticata, from Walters Shoal, a shallow seamount on the Madagascar Ridge in the South West Indian Ocean (SWIO)

TABLE 1. Comparative spicule dimensions of Ancorina corticata Lévi, 1964 occurring in Mozambique (WIO), South Africa and Walters Shoal (Madagascar Ridge). Micrometric values are in µm, n = 20 where applicable.
Spicule TypeSpicule TypeAncorina corticata TS 2475 (Walters Shoal)Ancorina corticata TS 2476 (Walters Shoal)Ancorina corticata Lévi, 1964Ancorina corticata 1967 Lévi,Oxea1362 (728–2018) × 20 (6–37)1349 (901–2063) × 19 (6–39)2000–2400 × 50 µm1500–2400 × 50–65 µmPlagiotriaene I (adult form)Rhabdome1710 (1550–2079) × 39 (33–47)1675 (1216–1965) × 36 (25–47)1400 × 70 µm1000–1500 × 25–65 µmCladome153 (130–179)140 (84–190)Cladi91 (75–117)86 (54–113)130–150 × 50 µm55–175 µmPlagiotriaene II (juvenile form)Rhabdome792 (448–1037) × 15 (6–24)769 (420–1071) × 14 (6–26)Cladome49 (20–84)40 (16–78)Cladi22 (8–38)21 (7–61)Oxyaster11 (9–15)12 (9–14)15–20 µm15–25 µmAcanthoxyaster19 (15–24)22 (17–28)Sanidaster6 (5–7)6 (5–7)6 µm7 µm