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A horseshoe crab absorbs oxygen from the water using gills that are divided into 5 distinct pairs located under the abdomen. Each pair of gills has a large flap-like structure covering leaf-like membranes called lamellae.
The body of a horseshoe crab is divided into three main parts: the cephalothorax, abdomen, and telson. The largest of these, the cephalothorax, houses most of the animal's eyes, limbs, and internal organs. It is also where the animal gets its name, as its shape somewhat resembles that of a horseshoe.
A comprehensive look at horseshoe crab anatomy. Includes detailed drawings by Shuster, Milne and Barlow, and data for both the novice and researcher.
The horseshoe crab has been on Earth for 350 million years. An ancient and complex anatomy hides within its domed shell. From its 10 eyes to its tube-like heart, the horseshoe crab’s unique...
Dr. Ruth H. Carmichael, Dauphin Island Sea Lab and the University of South Alabama, explains the differences and similarities between the male and female hor...
Horseshoe Crab Anatomy A distinctive part of a Horseshoe crab anatomy is the long, stiff caudal spine. While this may look dangerous, it is not a weapon and serves only to help the animal in forward movement; and to right it, if it gets turned on its back (an important function as none of its limbs reach beyond the edge of the carapace).
The body of the horseshoe crab is divided into three parts that are hinged together: a broad horseshoe-shaped cephalothorax; a much smaller, segmented abdomen; and a long, sharp tail-spine, or telson.
Basic Anatomy. There are three divisions to the body of the horseshoe crab: the prosoma , the opisthosoma, and the telson. These are sometimes referred to as the cephalothorax, the abdomen, and the tail.
Horseshoe Crab Anatomy The horseshoe crab gets its name from the shape of its head, which is rounded in shape just like the shoe of a horse. Its head, known as the prosoma, is the largest part of its body and contains most of the nervous systems and vital biological organs including the brain, heart, nervous system, mouth, and several glands.
A comprehensive look at horseshoe crab anatomy. Includes detailed drawings by Shuster, Milne and Barlow, and data for both the novice and researcher.