Richter, G. These data emphasize the need for future research on atlantid palaeontology, in particular to investigate the large time gap during the Palaeogene. Scientia Marina67 1 : Tiere 35 — Newman a observed in the laboratory that A. Correspondence: D. Vives Little is known of feeding in pterotracheids. First, the bodies and shells are largely transparent; only the buccal mass, eyes and viscera are opaque.
The Pterotracheoidea is, according to the Taxonomy of the Gastropoda (Bouchet & Rocroi, ), a taxonomic superfamily of sea snails or sea slugs, marine gastropod molluscs in the clade Littorinimorpha.
SDNHM Pterotrachea coronata (Sea elephant)
They are commonly called heteropods or sea elephants. Seapy, R. and G. Richter. Atlanta californiensis.
A new species of Atlantic heteropod (Mollusca: Gastropoda) from the California Current. The Veliger 36(4):.
ABSTRACT: Die1 patterns of vertical distribution were assessed for 13 species of heteropod molluscs from the epipelagic zone off Hawaii.
Open in new tab. However, shell morphology is often not sufficient to identify closely related species reliably, so that the eyes Fig. Vives Beispiel einer Nahrungskette im tropischen Pelagial.
PDF | RESUMEN: Se describe Atlanta selvagensis como nueva especie de molusco heterópodo, en base a la estructura externa de la concha y pigmentación. The eyes of the heteropod molluscs are unusually large and complex, compared with those of other gastropods (Hesse, ).
They have a basic design not.
Modified from Seapy and RichterFig.
Heteropod Mollusk Stock Image C/ Science Photo Library
Leiden: Backhuys Publishers. In atlantids, a considerable side-to-side body motion is induced by the large fin, although the shell and keel act to partially offset the fin's movements. Download all figures.
This sucker has grown larger in the family Atlantidae where it serves to hold the prey. Lemus-Santana et al. Tesch, J.
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|The larvae have a velum that serves as both a swimming and feeding organ.
Page: Tree of Life Pterotracheoidea Rafinesque, The Light and Smith Manual.
References Denton, E. Dana Report 34, 53 pp. This pattern was inferred to be most likely influenced by hydrographic factors, in particular seasonal vertical convection.
of certain Heteropoda and Pteropoda collected during the Voyage of HiIM. position mnore resembling that of ordinary Mollusks; and in Atlanta, as will be seen. Pterotrachea coronata. Sea elephant. Heteropodos.
Science Source Heteropod Mollusk
Phylum Mollusca Class Gastropoda Superfamily Heteropoda Family Pterotracheidae.
Deborah Wall-Palmer, Christopher W. Seapy, Roger R. Balart and J. Feeding intensity is greatest during the day, possibly because heteropods depend on vision to locate prey and because prey species are more available by day. These data emphasize the need for future research on atlantid palaeontology, in particular to investigate the large time gap during the Palaeogene.
Journal of the Zoological Society of London A
|This is a preview of subscription content, log in to check access. Atlanta inclinata Gray, Gabe, M.
The presence of a trunk-like proboscis is responsible for their common name, "sea elephants. From this collated information, it is clear that the vertical migrations of atlantids are complex, being seasonal, specific to stage and species, and also influenced by sampling method.
Part VI: the seasonal and annual distributions of the Gastropoda. However, the Late Pleistocene to Recent fossil record from the Caribbean Sea suggests that pteropods are not the preferred prey of atlantids.
Video: Heteropod mollusks Molluscs - Reef Life of the Andaman - Part 14