Axinella hispida Koltun 1959

• Main Authors: Morozov, Grigori, Sabirov, Rushan Mirzovich, Anisimova, Natalia
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2018
• Subjects: Biodiversity; Taxonomy; Animalia; Porifera; Demospongiae; Halichondrida; Axinellidae; Axinella; Axinella hispida; Bering Sea; Svalbard; Spitsbergen
• Online Access: https://doi.org/10.5281/zenodo.10530810; http://treatment.plazi.org/id/038DC908FFB2FFA4C2B4FC03FEA2FDC8

Axinella hispida Koltun, 1959 (Figure 3 (a–e)) Axinella hispida Koltun 1959, pp. 196–199, fig. 156, pl. XXXVI, fig. 1; Sim et al. 1990, pp. 127–128, pl. 8, figs. 1, 2 Description (Figure 3 (a)) Body elongated, branching or lobate, size up to 9.5 cm in height. It is slightly narrowing downwards forming a short peduncle. Surface setose, markedly hispid, covered with a thin, pellucid aspicular dermal membrane. The consistency is quite strong and elastic. Colour ash-yellow or greenish yellow. Skeleton (Figure 3 (b)) Plumose, formed by the thick ascending spicule tracts from which long styles radiate obliquely and penetrate the surface. Spicules (Figure 3 (c–e)) Long styles, dimensions: 1184.4–1836.6–2445 ( n = 30) × 14.2–24.6– 33.2 µm ( n = 30); thick styles, dimensions: 483.8–970–1914 ( n = 50) × 18.4–39– 52.3 µm ( n = 50); irregularly curved or flexuous oxeas, dimensions: 412.1–654.4–903 × 11.3–14.8– 20.2 µm ( n = 20). Distribution Bering Sea (near the Commander Islands), East China Sea (Cheju Island), west of Spitsbergen. Remarks This species is rather rarely found. After Koltun (1959) described two specimens collected near the Commander Islands, it was recorded only once, most likely wrongly, by Sim et al. (1990). Considering its spicules’ sizes and shapes, the sponge described by Sim from the East China Sea is closer to Axinella blanca (Koltun 1959). In total nine specimens found at depths of 163–425 m were examined. The temperature and salinity in the bottom layer were 3.33–3.93°C and 35‰. In contrast to description of spicules given by Koltun, the skeleton of each of the examined specimens contained single strongyles – derivatives of styles, both thick and long. Published as part of Morozov, Grigori, Sabirov, Rushan Mirzovich & Anisimova, Natalia, 2018, New data on sponges from Svalbard Archipelago with a description of a new species of Halicnemia, pp. 491-507 in Journal of Natural History (J. Nat. Hist.) (J. Nat. Hist.) 52 (7 - 8) on pages 495-497, DOI:10.1080/00222933.2018.1440020, ...