Zoomorphology

, Volume 129, Issue 2, pp 81–91 | Cite as

Homology and morphology of the neogastropod valve of Leiblein (Gastropoda: Caenogastropoda)

Original Paper

Abstract

The valve of Leiblein is a morphological synapomorphy defining Neogastropoda, but is also a significant adaptation in the evolution of carnivorous, predatory feeding and homologues have not been recognised amongst non-neogastropods to date. This study uses histology to examine the valve of Leiblein and associated oesophageal features of a buccinoidean (Euplica scripta—Columbellidae) and two muricoideans (Morula marginalba—Muricidae, and Columbarium pagodoides—Turbinellidae), and comparisons are made with the oesophagus of four non-neogastropods; the tonnoidean out-group Cabestana spengleri and three other littorinimorph caenogastropods. Several morphological details conflict with earlier descriptions of different neogastropod species, such as the presence of a diverticulum in the muricoidean valve and torsion in the buccinoidean valve. This supports recent findings that the valve of Leiblein is morphologically heterogeneous, but, unlike some other studies, does not dispute the homology of the valve in different neogastropod groups. Structure and histology support the homology of the valve of Leiblein in Muricoidea and Buccinoidea and its derivation from elements of the anterior oesophagus of higher littorinimorph caenogastropods (Tonnoidea). A thick, secretory, pseudostratified epithelium lining the ventral anterior oesophagus of C. spengleri is comparable with the tissue lining the glandular chamber of the valve of Leiblein. A modified theory regarding the evolutionary origin of the valve of Leiblein is proposed in which it is homologous to the anterior oesophagus of Tonnoidea.

Keywords

Carnivory Oesophagus Tonnoidea Buccinoidea Muricoidea Foregut 

References

  1. Aktipis SW, Giribet G, Lindberg DR, Ponder WF (2008) Gastropoda: An overview and analysis. In: Ponder WF, Lindberg DR (eds) Phylogeny and Evolution of the Mollusca. University of California Press, Berkeley, pp 201–237Google Scholar
  2. Amaudrut A (1898) La partie antérieure du tube digestif et la Torsion chez les Mollusques gastéropodes. Ann Sci Nat Zool 8:1–291Google Scholar
  3. Andrews EB, Thorogood KE (2005) An ultrastructural study of the gland of Leiblein of muricid and nassariid neogastropods in relation to function, with a discussion on its homologies in other caenogastropods. J Molluscan Stud 71:269–300CrossRefGoogle Scholar
  4. Andrews EB, Page AM, Taylor JD (1999) The fine structure and function of the anterior foregut glands of Cymatium intermedius (Cassoidea: Ranellidae). J Molluscan Stud 65:1–19CrossRefGoogle Scholar
  5. Ball AD, Andrews EB, Taylor JD (1997) The ontogeny of the pleurembolic proboscis in Nucella lapillus (Gastropoda: Muricidae). J Molluscan Stud 63:87–100CrossRefGoogle Scholar
  6. Brown SC (1969) The structure and function of the digestive system of the mud snail Nassarius obsoletus (Say). Malacologia 9:447–500Google Scholar
  7. Colgan DJ, Ponder WF, Beacham E, Macaranas JM (2007) Molecular phylogenetics of Caenogastropoda (Gastropoda: Mollusca). Mol Phylogenet Evol 42:717–737CrossRefPubMedGoogle Scholar
  8. Fretter V, Graham A (1994) British Prosobranch Molluscs; Their Functional Anatomy and Ecology. Revised and Updated Edition. Ray Society, LondonGoogle Scholar
  9. Graham A (1941) The oesophagus of the stenoglossan prosobranchs. Proc R Soc Edinb 51:1–23Google Scholar
  10. Healy JM (1988) Sperm morphology and its systematic importance in the Gastropoda. Malacol Rev Suppl 4:251–266Google Scholar
  11. Kantor YI (1996) Phylogeny and relationships of Neogastropoda. In: Taylor JD (ed) Origin and Evolutionary Radiation of the Mollusca. Oxford University Press, Oxford, pp 221–230Google Scholar
  12. Kantor YI (2002) Morphological prerequisites for understanding neogastropod phylogeny. Boll Malacol Suppl 4:161–174Google Scholar
  13. Kantor YI, Fedosov A (2009) Morphology and development of the valve of Leiblein: possible evidence for paraphyly of the Neogastropoda. Nautilus 123:73–82Google Scholar
  14. Kantor YI, Taylor JD (2002) Foregut anatomy and relationships of raphitomine gastropods (Gastropoda: Conoidea: Raphitominae). Boll Malacol Suppl 4:83–110Google Scholar
  15. Page LR (2000) Development and evolution of adult feeding structures in caenogastropods: overcoming larval functional constraints. Evol Dev 2:25–34CrossRefPubMedGoogle Scholar
  16. Page LR (2005) Development of foregut and proboscis in the buccinid neogastropod Nassarius mendicus: evolutionary opportunity exploited by a developmental module. J Morphol 264:327–338CrossRefPubMedGoogle Scholar
  17. Page LR, Pedersen RVK (1998) Transformation of phytoplanktivorous larvae into predatory carnivores during development of Polinices lewisii (Mollusca, Caenogastropoda). Invertebr Biol 117:208–220CrossRefGoogle Scholar
  18. Ponder WF (1974) The origin and evolution of the Neogastropoda. Malacologia 12:195–338Google Scholar
  19. Ponder WF, Lindberg DR (1997) Towards a phylogeny of gastropod molluscs: an analysis using morphological characters. Zool J Linn Soc 119:83–265CrossRefGoogle Scholar
  20. Ponder WF, Colgan DJ, Healy JM, Nützel A, Simone LRL, Strong EE (2008) Caenogastropoda. In: Ponder WF, Lindberg DR (eds) Phylogeny and Evolution of the Mollusca. University of California Press, Berkeley, pp 331–383Google Scholar
  21. Riedel F (2000) Ursprung und Evolution der “höheren” Caenogastropoda. Berl Geowiss Abh (Reihe E) 32:1–240Google Scholar
  22. Strong EE (2003) Refining morphological characters: morphology, character coding and a phylogeny of the Caenogastropoda. Zool J Linn Soc 137:447–554CrossRefGoogle Scholar
  23. Taylor JD (1998) Understanding biodiversity: adaptive radiation of predatory marine gastropods. In: Morton B (ed) The marine biology of the South China Sea; Proceedings of the third international conference of the marine biology of the South China Sea, Hong Kong, Hong Kong University Press, Hong Kong, 28 October–1 November 1996, pp 187–206Google Scholar
  24. Taylor JD, Morris NJ (1988) Relationships of neogastropods. In: Ponder WF (ed) Prosobranch phylogeny. Malacol Rev Suppl 4: 167–179Google Scholar
  25. Taylor JD, Morris NJ, Taylor CN (1980) Food specialization and the evolution of predatory prosobranch gastropods. Paleontology 23:375–409Google Scholar
  26. Waren A, Bouchet P (1990) Laubierinidae and Pisanianurinae (Ranellidae), two new deep-sea taxa of the Tonnoidea (Gastropoda: Prosobranchia). Veliger 33:56–102Google Scholar

Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  1. 1.Australian MuseumSydneyAustralia

Personalised recommendations