Isodictya kerguelenensis Ridley & Dendy 1886

• Main Authors: Göcke, Christian, Janussen, Dorte
• Format: Other/Unknown Material
• Language: unknown
• Published: 2013
• Subjects: Biodiversity; Taxonomy; Animalia; Porifera; Demospongiae; Poecilosclerida; Isodictyidae; Isodictya; Isodictya kerguelenensis; Burton; Ridley; Antarc*; Antarctica
• Online Access: https://zenodo.org/record/6145299; https://doi.org/10.5281/zenodo.6145299

Isodictya kerguelenensis (Ridley & Dendy, 1886) (Fig. 15, Tab. 11) Isodictya kerguelenensis (Ridley & Dendy, 1886): Lévi 1956: 27, text-fig. 2, 3. Koltun 1964: 44, pl. 8, figs. 11, 12, 1976: 175. Vacelet & Arnaud, 1972: 16. Desqueyroux-Faúndez 1989: 113, pl. 3, figs. 11 a–b, pl. 9, fig. 52. Barthel et al. 1990: 122. Cuartas 1992: 75, text-figs. 5, 6, 62. Ríos et al. 2004: 114, fig. 12. Synonymy: Desmacidon kerguelenensis (Ridley & Dendy, 1886): Topsent 1908: 24. Desmacidon (Homoeodictya) kerguelenensis (Ridley & Dendy, 1886): Ridley & Dendy 1887: 110, pl. 23, figs. 3, 3a–c, pl. 24, fig. 3. Desmacidon kerguelenensis var. antarctica Kirkpatrick, 1908: 37, pl. 19, fig. 1, pl. 23, fig. 1. Desmacidon kerguelenensis var. cactoides Kirkpatrick, 1908: 38, pl. 19, fig. 2, pl. 23, fig. 2 Homoeodictya antarctica (Kirkpatrick, 1908): Topsent 1917: 67–68. Homoeodictya kerguelenensis Ridley & Dendy, 1886: 346. Topsent 1917: 67. Burton 1932: 283. Homoeodictya kerguelenensis var. simillima Hentschel, 1914: 80, pl. 6, fig. 7. Burton 1932: 285, pl. 51, fig. 4. Isodictya antarctica (Kirkpatrick, 1908): Koltun 1964: 44, pl. 8, figs. 17, 18, 1976: 175. Desqueyroux 1972: 51. Vacelet & Arnaud 1972: 16, figs. 3, 4. Barthel et al. 1990: 122. Isodictya cactoides (Kirkpatrick, 1908): Burton 1929: 424, 1934: 20. Platychalina cactoides (Kirkpatrick, 1908): Burton 1938: 9. Platychalina kerguelenensis (Kirkpatrick, 1908): Burton 1938: 9. Material. 3 fragments, probably parts of one specimen from station 016- 1 (SMF 11805, 11856, 11857), 488.7 m, 70 ° 35.35 ' S, 9 ° 2.31 ' W, 17.12. 2007. Description. Samples (Fig. 15 A) poorly preserved, determination mainly based on spicule characters. Spiculation (Tab. 11): Principal spicules oxeas (Fig. 15 B–C) with slender pointed ends, very slightly kinked in the middle, about 660 µm long and 22 µm wide. Microscleres very characteristic palmate isochelae (Fig. 15 D–E). Lateral alae completely coalesced with shaft, aggravating differentiation. Middle alae free and fully ...