Boschung, Herbert T. Formerly, Department of Biological Sciences, University of Alabama, Tuscaloosa, Alabama.
- Suborder Platyrhinoidei
- Suborder Zanobatoidei
- Suborder Myliobatoidei
- Links to Primary Literature
- Additional Readings
An order of batoid fishes (subclass Elasmobranchii). Typical members of the order Myliobatiformes are described by the following characteristics: The disc is strongly depressed and varies from oval longitudinally to much broader than long; the tail is well marked off from the body sector, very short to long and whiplike, and equipped with a poisonous spine in some species; the pectoral rays are either continuous along the side of the head or separate from the head and modified to form rostral lobes or finlike rostral appendages (cephalic fins); the dorsal fin, if present, is near the base of the tail; and development is ovoviviparous. Sometimes an individual ray may have two or three, very rarely four, tail spines rather than the usual one. Multiple spines result from the failure of older spines to shed before new ones develop. Most species are tropical or subtropical, although some species occur in warm temperate and cool temperate zones. The usual habitat is shallow shore waters and upper continental and insular slopes. Some, such as the eagle rays, may venture far out to sea, but none are considered truly oceanic rays. See also: Batoidea; Elasmobranchii
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Contributors include more than 9000 highly qualified scientists and 43 Nobel Prize winners.
MORE THAN 8500 articles and Research Reviews covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 19,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information