Ancorinidae Schmidt 1870

• Main Author: Łukowiak, Magdalena
• Format: Text
• Language: unknown
• Published: Zenodo 2015
• Subjects: Biodiversity; Taxonomy; Animalia; Porifera; Demospongiae; Astrophorida; Ancorinidae; Antarctic; Pacific; New Zealand; Ridley; Antarc*
• Online Access: https://dx.doi.org/10.5281/zenodo.6108551; https://zenodo.org/record/6108551

Family Ancorinidae Schmidt, 1870 Among the diversified and very frequent triaenes in the studied samples, there are some that may be assigned to the ancorinid genus Stelletta Schmidt, 1862 (Figs. 7 F–I). At least two different morphotypes of such triaenes clearly belong to this cosmopolitan genus. These are big (1000–3700 µm long), massive protriaenes with thick, squat rhabds (Figs. 7 H, I), as well as others with short clads at right angles to the rhabd (Figs. 7 F, G). There are several species of the genus Stelletta recorded today from Australia: S. aeruginosa Carter, 1886, S. brevis Hentschel, 1909, S. centrotyla Lendenfeld, 1907, S. clavosa Ridley, 1884, S. communis (Sollas, 1886), S. conulosa Bergquist, 1968, S. debilis Thiele, 1900, S. mamilliformis Carter, 1886, S. maori Dendy, 1924, S. moseleyi (Sollas, 1886), S. pulchra (Sollas, 1886), S. purpurea Ridley, 1884, S. pyriformis (Sollas, 1886), S. ridleyi (Sollas, 1886), S. sigmatriaena Lendenfeld, 1907, S. splendens (Tanita, 1965), and S. tuberculata (Carter, 1886) (Atlas of Living Australia). Unfortunately, having only loose spicules the problem of specific assignment exists, and thus they are determined here only as Stelletta sp. Also some other triaenes from my material (e.g., Figs. 9 A, K, L, N) may belong to Stelletta but in this case, the assignment is highly intuitive. The triaenes that may belong to Stelletta are common in the fossil record. They have been described e.g., by Reif from the Jurassic of the Germany (1967, pl. 13, figs. 17–19). Apart from the previously discussed Stelletta sp. spicules, other moderately frequent spicules representing family Ancorinidae occur in my samples. These are characteristic calthrops and dichotriaenes (Figs. 5 N, O) that resemble spicules of Dercitus Gray, 1867 a (now Stoeba ). Some of these spicule types may also occur, however, in other Astrophorid families. For example, spicules illustrated in the Figure 4 R (as well as Fig. 5 N) may belong to a wide range of pachastrellid genera (e.g., Poecillastra , Pachastrella , Characella ), or to Vulcanella (family Vulcanellidae), or even to Stelletta (family Ancorinidae). Some sanidaster-ataxasters belong probably to Dercitus (now Stoeba ) (Fig. 7 O). The illustrated here anatriaenes (Figs. 7 A–E) may belong to the family Ancorinidae; however, they also may belong to other taxa (e.g., family Geodiidae or Pachastrellidae). Based on their shape, they have been assigned here to ancorinids. Both, the triaenes and the sanidaster-ataxasters, in my opinion, belong to Dercitus (Stoeba) -like sponge. : Published as part of Łukowiak, Magdalena, 2015, Late Eocene siliceous sponge fauna of southern Australia: reconstruction based on loose spicules record, pp. 1-65 in Zootaxa 3917 (1) on pages 20-21, DOI: 10.11646/zootaxa.3917.1.1, http://zenodo.org/record/287785 : {"references": ["Schmidt, O. (1870) Grundzuge einer Spongien-Fauna des atlantischen Gebietes. Wilhelm Engelmann, Leipzig, 88 pp.", "Schmidt, O. (1862) Die Spongien des adriatischen Meeres. Wilhelm Engelmann, Leipzig, 88 pp.", "Carter, H. J. (1886) Descriptions of Sponges from the Neighbourhood of Port Phillip Heads, South Australia, continued. Annals and Magazine of Natural History, Series 5, 17 (97, 98, 101, 102), 40 - 53, 112 - 127, 431 - 441, 502 - 516. http: // dx. doi. org / 10.1080 / 00222938609460181", "Hentschel, E. (1909) Tetraxonida. I. Teil. In: Michaelsen, W. & Hartmeyer, R. (Eds.), Die Fauna Sudwest-Australiens. Ergebnisse der Hamburger sudwest-australischen Forschungsreise 1905, 2, pp. 347 - 402. http: // dx. doi. org / 10.5962 / bhl. title. 7416", "Lendenfeld, R. Von (1907) Die Tetraxonia. Wissenschaftliche Ergebnisse der Deutschen Tiefsee-Expedition auf der Dampfer Valdivia 1898 - 1899, 11 (1 - 2), 59 - 374.", "Ridley, S. O. (1884) Spongiida. In: Report on the Zoological Collections made in the Indo-Pacific Ocean during the Voyage of H. M. S. ' Alert', 1881 - 2. British Museum (Natural History), London, pp. 366 - 482, 582 - 630. http: // dx. doi. org / 10.5962 / bhl. title. 22498", "Sollas, W. J. (1886) Preliminary account of the Tetractinellid sponges Dredged by H. M. S. ' Challenger' 1872 - 76. Part I. The Choristida. Scientific Proceedings of the Royal Dublin Society, New Series, 5, pp. 177 - 199.", "Bergquist, P. R. (1968) The Marine Fauna of New Zealand: Porifera, Demospongiae, Part 1. (Tetractinomorpha and Lithistida). New Zealand Department of Scientific and Industrial Research Bulletin (New Zealand Oceanographic Institute Memoir 37), 188, 1 - 105.", "Thiele, J. (1900) Kieselschwamme von Ternate. I. Abhandlungen herausgegeben von der Senckenbergischen naturforschenden Gesellschaft, Frankfurt, 25, 19 - 80.", "Dendy, A. (1924) Porifera. Part I. Non-Antarctic sponges. Natural History Report. British Antarctic (Terra Nova) Expedition, 1910 (Zoology), 6 (3), 269 - 392.", "Tanita, S. (1965) Report on the sponges obtained from the adjacent waters of the Sado Island, Japan Sea. Bulletin Japan Sea Regional Fisheries Research Laboratory, 14, 43 - 66.", "Gray, J. E. (1867 a) Notes on the Arrangement of Sponges, with the Descriptions of some New Genera. Proceedings of the Zoological Society of London, 1867 (2), 492 - 558."]}