Skip to main content

Free Content The Circulatory System in the Lower Jaw of the Skipjack Tuna (Katsuwonus Pelamis) with Special Reference to the Thyroid Gland

Download Article:
(PDF 1047.3095703125 kb)
Basic anatomical information is presented on the location of the thyroid gland and the circulatory system in the lower jaw of the skipjack tuna (Katsuwonus pelamis), previous treatises on scombrid anatomy and morphology having neglected this complex region. The thyroid gland consists of two compact lobes; the anterior lobe is located immediately in front of the roots of the first afferent branchial arteries (Y-fork of the ventral aorta), and the posterior lobe dorsally and laterally between the roots of the first and second afferent branchial arteries. Those parts of the arterial and venous systems connecting the heart and the thyroid gland, gill arches, and other areas of the lower jaw are described. Two major sinuses, found in close relation to the inferior jugular vein, may be part of a lymphatic system.

19 References.

No Supplementary Data.
No Data/Media
No Metrics

Document Type: Research Article

Publication date: 1976-01-01

More about this publication?
  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more