1. Artedi P (1738) Ichthyologia, sive opera omnia de piscibus. Conrad Wishoff, Leiden, p 543
2. Corrigan DJ (1860) On some structural peculiarities in the pipefishes. Zoologist 18:6813?6814
3. Cuvier G, Duvernoy G-L (1805) Leçons d'anatomie comparée, Vol 4. Fortin, Masson & Cie, Paris, p 539
4. Cuvier G, Duvernoy G-L (1840) Leçons d'anatomie comparée, Vol 7. Fortin, Masson & Cie, Paris
5. Davis JC, Cameron JN (1971) Water flow and gas exchange at the gills of rainbow trout, Salmo gairdneri. J Exp Biol 54:1?18