File:American malacological bulletin (1986) (17535622753).jpg

Title: American malacological bulletin
Identifier: americanmal4519861987amer (find matches)
Year: 1983 (1980s)
Authors: American Malacological Union
Subjects: Mollusks; Mollusks
Publisher: (Hattiesburg, Miss. ?) : (American Malacological Union)
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Biodiversity Heritage Library

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50 AMER. MALAC. BULL. 4(1) (1986)
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Fig. 1. Scanning electron micrographs of the shells of juvenile gastropods from deep-sea hydrothermal vents. (A) Archaeogastropod limpet present at both the 13°N and 21 °N hydrothermal vent sites. Scale bar, 100 /tm. (B) Protoconch morphology of (A). Scale bar, 50 ^m. (C) Larval shell (protoconch I and II) morphology of neogastropod turrid from the 21 °N hydrothermal vent area (only one specimen of this species was collected from the site). Scale bar, 100 ^m. (D) Apical view of (C). Scale bar, 50 ^m. (Lutz et a/., 1984). In the present paper, we will present further evidence that suggests that the vast majority of organ- isms present at the vents undergo nonplanktotrophic devel- opment, with a relatively restricted, low-dispersal larval stage. Our studies are based entirely on analyses of the shells of molluscs, which are the only taxa present at the vents that preserve within their skeletal tissues a record of early onto- genetic history (see Jablonski and Lutz, 1980, 1983 for details

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