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The Larvae of the Spatangidae

Published online by Cambridge University Press:  11 May 2009

C. B. Rees
Affiliation:
The Scottish Marine Biological Association, Oceanographic Laboratory, Edinburgh

Extract

An account is given of the general structure of the body skeleton of the spatangid larva. A considerable change occurs in the skeleton as the larva increases in size, some parts being absorbed and new parts appearing. Of particular interest is the replacement of the anterior transverse rod by the ventral horizontal rod.

The skeletons of larvae, young stages to late stages, of Echinocardium cordatum, E. flavescens, Spatangus purpureus and Brissopsis lyrifera are described. The larvae of Echinocardium and Spatangus are, in essentials, very similar; that of Brissopsis differs greatly from them. A striking difference is that in Brissopsis the ventral horizontal rod arises from the postoral arm and anterior to the anterior transverse rod, in the other two genera it arises from the body rod posterior to the anterior transverse rod.

The replacement of the anterior transverse rod by a ventral horizontal rod is probably normal in clypeastroid larvae also.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 1953

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References

REFERENCES

Chadwick, C. 1914. Echinoderm larvae. L.M.B.C.Memoirs, 22. 32pp. Liverpool.Google Scholar
Hörstadius, S. 1940. Change in inheritance in echinoid hybrids. Journ. Mar. Biol. Assoc, Vol. 24, pp. 99114.CrossRefGoogle Scholar
Krohn, A. 1853. Über die Larve von Spatangus purpureus. Müllers Archivf. Anat. und Physiol., p. 253.Google Scholar
Macbride, E. W. 1914. The development of Echinocardium cordatum. I. The external features of the development. Quart. Journ. Micros. Soc, Vol. 59, pp. 471–86.Google Scholar
Mortensen, Th. 1898. Echinodermlarven der Plankton Expedition. Ergebn. d. Plankton-Expedition der Humboldt-Stiftung, Vol. 2, J. 120 pp.Google Scholar
Mortensen, Th. 1913. On the development of some British echinoderms. Journ. Mar. Biol. Assoc, Vol. 10, pp. 118.CrossRefGoogle Scholar
Mortensen, Th. 1920. Notes on the development and the larval forms of some Scandinavian echinoderms. Vid. Medd. Dansk. Naturh. Foren., Vol. 71, pp. 133–60.Google Scholar
Mortensen, Th. 1921. Studies of the Development and Larval Forms of Echinoderms. 266 pp., Copenhagen.CrossRefGoogle Scholar
Mortensen, Th. 1927. Handbook of the Echinoderms of the British Isles. 471 pp., Oxford.CrossRefGoogle Scholar
Mortensen, Th. 1937. Contributions to the study of the development and larval forms of echinoderms. III. Kgl. Danske Vidensk. Selsk. Skrifter, Naturv. & Math. Afd., Raekke 9, Bd. 7, pp. 165.Google Scholar
Ohshima, H. 1921. Notes on the larval skeleton of Spatangus purpureus. Quart. Journ. Micros. Soc., Vol. 65, pp. 479–92.Google Scholar
Onoda, K. 1938. Notes on the development of some Japanese echinoids, with special reference to the structure of the larval body. Report III. Japan. Journ. Zool., Vol. 8, pp. 113.Google Scholar
Rae, K. M. 1952. Continuous plankton records: Explanation and methods, 19461949. Hull Bull. Mar. Ecol., Vol. 3, pp. 135–55.Google Scholar
Tennent, D. H. 1929. Early development and larval forms of three echinoids in the Torres Strait region. Pap. Tortugas Lab., Vol. 26, pp. 115–28.Google Scholar
Thèel, H. 1892. On the development of Echinocyamus pusillus (O. F. Müller). Nova Acta Regiae Soc. Sci., Vol. 15, pp. 157.Google Scholar
Thorson, G. 1946. Reproduction and larval development of Danish marine bottom invertebrates, with special reference to the planktonic larvae in the Sound (Øresund). Medd. Komm. Danmarks Fisk. Havund., Ser, Plankton, Bd. 4, No. 1, 523 PP.Google Scholar