Morphology of the mechanosensory lateral line system in the Atlantic Stingray, Dasyatissabina: The mechanotactile hypothesis

Journal of Morphology
Karen P Maruska, Timothy C Tricas

Abstract

The biological function of anatomical specializations in the mechanosensory lateral line of elasmobranch fishes is essentially unknown. The gross and histological features of the lateral line in the Atlantic stingray, Dasyatis sabina, were examined with special reference to its role in the localization and capture of natural invertebrate prey. Superficial neuromasts are arranged in bilateral rows near the dorsal midline from the spiracle to the posterior body disk and in a lateral position along the entire length of the tail. All dorsal lateral line canals are pored, contain sensory neuromasts, and have accessory lateral tubules that most likely function to increase their receptive field. The pored ventral canal system consists of the lateral hyomandibular canal along the disk margin and the short, separate mandibular canal on the lower jaw. The extensive nonpored and relatively compliant ventral infraorbital, supraorbital, and medial hyomandibular canals form a continuous complex on the snout, around the mouth, and along the abdomen. Vesicles of Savi are small mechanosensory subdermal pouches that occur in bilateral rows only along the ventral midline of the rostrum. Superficial neuromasts are best positioned to detect water m...Continue Reading

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Citations

Jul 31, 2014·Journal of Experimental Zoology. Part A, Ecological Genetics and Physiology·Samantha Mulvany, Philip J Motta
Nov 18, 2000·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·M B Peach, N J Marshall
Jan 5, 2019·Bioinspiration & Biomimetics·Felix KaldenbachHorst Bleckmann
Sep 27, 2006·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Susan M TheissNathan S Hart
Jan 6, 2009·Journal of Morphology·M B Peach, N J Marshall
Jun 27, 2013·Journal of Morphology·Samantha Mulvany, Philip J Motta
Jun 11, 2015·Integrative and Comparative Biology·Frank E Fish, Jessica L Hoffman

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