Echinoidea taxon details
original description
Leske, N. G. 1778. Jacobi Theodori Klein naturalis dispositio echinodermatum . . ., edita et descriptionibus novisque inventis et synonomis auctorem aucta. Addimenta ad I. T. Klein naturalem dispositionem Echinodermatum. G. E. Beer, Leipzig, xxii+278 pp., available online at http://gdz.sub.uni-goettingen.de/dms/load/img/?PID=PPN573613834 page(s): 195 [details] 
original description
(of Lobophora L. Agassiz, 1841) Agassiz, L. 1841. Monographies d'Échinodermes vivans et fossiles. Échinites. Famille des Clypéasteroides. 2 (Seconde Monographie). Des Scutelles. Neuchâtel, Switzerland, i-iv, 1-151, pls 1-27., available online at https://www.biodiversitylibrary.org/page/1395637 [details]
original description
(of Tretodiscus Pomel, 1883) Pomel, A. 1883. Classification méthodique et Genera des Échinides vivantes et fossiles. Thèses présentées à la Faculté des Sciences de Paris pour obtenir le Grade de Docteur ès Sciences Naturelles 503, Adolphe Jourdan, Alger, 131 pp., available online at http://www.biodiversitylibrary.org/item/43038 [details]
basis of record
Rowe, F. W. E.; Gates, J. (1995). Echinodermata. <em>In: Wells, A.; Houston, W.W.K. (Ed.) Zoological catalogue of Australia, 33. CSIRO: Melbourne. ISBN 0-643-05696-3. XIII.</em> 510 pp. [details]
subsequent type designation
Clark, H. L. (1911). The genera of recent clypeastroids. <em>Annals and Magazine of Natural History, Series 8.</em> 7/42: 593-605., available online at https://www.biodiversitylibrary.org/page/15815317 page(s): 597 [details]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Diagnosis 1. Test sometimes slightly indented laterally in ambulacra II and IV; thin and sharp margin;
2. Main visceral central hollow with floor reinforced by a network of thin trabeculae;
3. Petals sometimes open; the posterior pair shorter than the rest, the anterior odd sometime being the longest;
4. Posterior ambulacra with axial ellipsoidal lunules, long slit-like lunules or notches;
5. Periproct open next to the rear margin on inter. 5;
6. Food grooves branched distally;
7. Angle between the lunules from 70 to 110°;
8. Width at ambitus of interambulacrum 5 from 36 to 53% TL;
9. Tube-feet extending into interambulacral zones;
10. Post-basicoronal plates 2a/2b, 3a/3b on inter. 5 large and paired, forming an obtuse triangle;
11. Only 2–4 plates present between the lunules and the tips of respective petals. [details]Unreviewed
Remark Type species: Echinodiscus bisperforatus Leske, 1778 by subsequent designation in H.L. Clark (1911) (Rowe & Gates, 1995).
In family Clypeasteridae in Ludwig (1899); in family Scutellidae in Clark & Courtman-Stock (1976). [details]
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Japanese |
フタツアナスカシカシパン属 |
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From editor or global species database
Echinodiscus bisperforatus
Image from typetaxon
Echinodiscus bisperforatus
Image from typetaxon
Echinodiscus bisperforatus naked test
Image from typetaxon
Echinodiscus bisperforatus (aboral)
Image from typetaxon
Echinodiscus bisperforatus (oral)
Image from typetaxon
Echinodiscus bisperforatus (repaired test)
Image from typetaxon
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