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A Unique Vascular Configuration among the Efferent Branchial Arteries and Splanchnic Arteries in the Yellow Stingray, Urobatis jamaicensis

Published online by Cambridge University Press:  22 May 2009

Bethany L. Basten ,
Robin L. Sherman ,
Alois Lametschwandtner  and
Richard E. Spieler
Bethany L. Basten
Affiliation:
Nova Southeastern University, Oceanographic Center, Dania Beach, FL 33004, USA
Robin L. Sherman
Affiliation:
Nova Southeastern University, Farquhar College of Arts and Sciences, Davie, FL 33314, USA
Alois Lametschwandtner
Affiliation:
Universität Salzburg, Fachbereich Organismische Biologie, A-5020 Salzburg, Austria
Richard E. Spieler*
Affiliation:
Nova Southeastern University, Oceanographic Center, Guy Harvey Research Institute, National Coral Reef Institute, Dania Beach, FL 33004, USA
*
Corresponding author. E-mail: [email protected]
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Abstract

With light and scanning electron microscopy of vascular corrosion casts, we have observed in Urobatis jamaicensis that the fourth epibranchial arteries do not merge completely with the dorsal aorta. Instead they form a brief anastomosis with a short vessel projecting ventrally from the dorsal aorta and maintain their integrity as separately distinct vessels. Posterior to the anastomosis, the right epibranchial becomes the celiac trunk and left epibranchial becomes the anterior mesenteric artery/posterior intestinal artery. This vascular configuration appears to be unique in elasmobranchs.

Keywords

elasmobranchvascularanatomycorrosion castepibranchialdorsal aortasplanchnic circulationgastric arteries
Type
Biological Applications
Information
Microscopy and Microanalysis , Volume 15 , Issue 3 , June 2009 , pp. 194 - 196
Copyright
Copyright © Microscopy Society of America 2009

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References

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