Published January 31, 2009 | Version v1
Taxonomic treatment Open

Teliocrinus springeri

Description

TELIOCRINUS SPRINGERI (CLARK, 1909)

Synonym: Hypalocrinus springeri Clark, 1909a: 650; Hypalocrinus ornatus Clark, 1909a: 651; Hypalocrinus liliaceus Clark, 1909b: 150; Teliocrinus asper Döderlein, 1912: 22; Comastrocrinus springeri Clark, 1912: 254; Comastrocrinus ornatus Clark, 1912: 257; Comastrocrinus liliaceus, Clark, 1912: 257; Teliocrinus springeri Clark, 1923: 10; Teliocrinus monarthrus, Clark, 1928: 365; Teliocrinus springeri Clark, 1932: 391; Teliocrinus springeri Clark, 1946: 20–21; Teliocrinus springeri (extant specimens only) Oji, 1990: 423.

Emended diagnosis: A species with IIBr more frequently 4 (up to 55%) or 2 (up to 44%) IIBrax; IIIBr frequently restricted to the axillary (up to 56%), and IVBrax: rare. IBr2ax: short and broad triangular. Transverse synarthry: at IIIBr1+2 or IIIBr2+3. Arm syzygies: with a concave symmorphy having raised centre around the lumen. Distal aboral border of brachials: more-or-less everted, at least in the proximal part of the crown. Distal end of arm: with only rudimentary pinnules over a few centimetres. Rectangular and convex radials, and small basals usually disjointed. Cryptic infrabasals present. Stalk: slender, usually pentagonal to rounded pentagonal in cross section. Number of internodals per noditaxis: 9–16, mode at 11. Infranodal synostoses (cryptosymplexies): flat with areolar lobes lanceolate to losangic, interpetaloid zones covered by dense syzygial stereom with a fine axial groove, and axial lumen filled in by a large meshed stereom either preserving a pentalobate secondary lumen or not. Cirri: slender and delicate, as long as two or more noditaxes, and orientated upwards in the proximal stalk. Cirrus socket: heartshaped taking place on the distal half of the nodal.

Locus typicus: North of the Laccadive Islands, 13°47′49″N, 73°07′00″E; depth 1145 m.

Occurrence: North Indian Ocean from the Arabian Sea to the Bay of Bengal and south-west Sumatra; depth range? 366–1280 m. The detailed locations of the 20 known specimens are listed in Table 1.

Included subspecies: Hypalocrinus springeri Clark, 1909a; Hypalocrinus liliaceus Clark, 1909b.

Notes

Published as part of Roux, Michel, Améziane, Nadia & Eleaume, Marc, 2009, The genus Teliocrinus (Crinoidea, Echinodermata): a key taxon among pentacrinid stalked crinoids, pp. 22-39 in Zoological Journal of the Linnean Society 155 (1) on page 37, DOI: 10.1111/j.1096-3642.2008.00392.x, http://zenodo.org/record/4634981

Files

Files (2.7 kB)

Name Size Download all
md5:979bd5e4d477268e42711ef28bccbdb6
2.7 kB Download

System files (19.0 kB)

Name Size Download all
md5:8ae235329174fe9171f025c0531ef505
19.0 kB Download

Linked records

Additional details

References

  • Clark AH. 1909 a. Description of seventeen new species of recent crinoids. Proceedings of the United State National Museum 36: 633 - 651.
  • Clark AH. 1909 b. New recent Indian crinoids. Proceedings of the Biological Society, Washington 22: 143 - 152.
  • Doderlein L. 1912. Die gestielten Crinoiden der deutschen Tiefsee-Expedition. In: Fisher G, ed. Wissenschaftl. Ergebnisse deutsche Tiefsee-Expedition auf dem Dampfer ' Valvidia' (1898 - 1899). Jena, 17, 1, 1 - 34.
  • Clark AH. 1912. The crinoids of the Indian Ocean. Echinodermata of the Indian Museum, Part VII. Calcutta: Crinoidea, 1 - 325.
  • Clark AH. 1923. A revision of the recent representatives of the crinoid family Pentacrinidae, with the diagnoses of two new genera. Journal of the Washington Academy of Sciences 13: 8 - 12.
  • Clark HL. 1928. The sea lilies, sea stars, brittle stars and sea urchins of the South Australian Museum. Transactions, Royal Society of South Australia 39: 16 - 24.
  • Clark AH. 1932. On some recent crinoids collected by the cable-ship ' The Cable' off Madras and off Lombok and Timor, Lesser Sunda Islands. Annal and Magazine Natural History, London, Series 10: 378 - 392.
  • Clark HL. 1946. The echinoderm fauna of Australia. Its composition and its origin. Carnegie Institution Washington Publication 566: 1 - 567.
  • Oji T. 1990. Miocene Isocrinidae (stalked crinoids) from Japan and their biogeographic implication. Transactions and Proceedings of the Palaeontological Society of Japan, New Series 157: 412 - 429.