Late embryos of Doto amyra

January 28, 2006
From: Jeff Goddard

Hi Bill,
Here is a photo of the embryos of Doto amyra close to hatching. The shells average a little over 240 microns in length. The lecithotrophic larvae can swim or crawl and are capable of metamorphosis into a juvenile within a day or two of hatching. Note the eyespots and large foot with a well developed propodium; as described by Bonar (1978, p. 187), the appearance of these structures "signal the approach of metamorphic competence" in opisthobranchs.

Locality: Montana de Oro State Park, California, USA. Pacific coast. Intertidal. Length: 240 microns (shells). May 2005. Rocky shore. Photographer: Jeff Goddard

  • Bonar, D.B. 1978. Morphogenesis at metamorphosis in opisthobranch molluscs. [In] Settlement and metamorphosis of marine invertebrate larvae. Edited by F.S. Chia and M.E. Rice. Elsevier, New York. pp. 177-196.

Best wishes,
Jeff

goddard@lifesci.ucsb.edu

Goddard, J.H.R., 2006 (Jan 28) Late embryos of Doto amyra. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/15657

Thanks Jeff,
Bill Rudman

Factsheet

Doto amyra

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