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What are the appendages of a crayfish?
The appendages of the crayfish attach to both the cephalothorax and the abdomen. The appendages that attach to the thorax are called WALKING LEGS and you can see how they are jointed in the figure below. The smaller appendages attached to the segments of the abdomen are called SWIMMERETS.
What is the appendages of a crab?
Crabs. Crabs have ten jointed appendages, including two large claws for food capture called chelipeds, and eight walking legs that are used for walking sideways. An elliptical carapace protects the rest of the body. Crabs have two stalked eyes and a pair of sensory antennae.
What are the appendages in the cephalic region?
The cephalic region contains six basic paired appendages: (1) compound eyes; (2) first antennae, which are biramous in the malacostracans; (3) second antennae; (4) mandibles; (5) first maxillae; and (6) second maxillae.
What are the functions of the appendages that are found on the Cephalothorax?
…often referred to as the cephalothorax. A pair of appendages is attached to each somite. The first two pairs, the first and second antennae, consist of a segmented stalk and flagella, and serve such sensory functions as olfaction, touch, and balance. The remaining three head appendages are either the crushing…
Which of the appendages of crayfish help in reproduction of the crayfish?
swimmerets
The chelipeds are the large claws that the crayfish uses for defense and to capture prey. Each of the four remaining segments contains a pair of walking legs. In the abdomen, the first five segments each have a pair of swimmerets, which create water currents and function in reproduction.
What are abdominal appendages?
In females, paired appendages of the eighth and ninth abdominal segment fit together to form an egg-laying mechanism called the ovipositor. These appendages consist of four valvifers (basal sclerites with muscle attachments) and six valvulae (apical sclerites which guide the egg as it emerges from the female’s body).
What are the appendages found near the rostrum?
Below the rostrum are two pairs of mandibles (the jaws) and three pairs of maxillipeds, which are small appendages that direct food to the mouth.
What are the different appendages and how many of each and their functions crayfish?
Crayfish Appendage Table
| Appendage | Function | Attach Appendage Here |
|---|---|---|
| First maxilliped | Holds food; Senses touch and taste | . |
| Second maxilliped | Holds food; Senses touch and taste | . |
| Third maxilliped | Holds food; Senses touch and taste | . |
| Cheliped | Grasps food | . |
The head (or cephalic) region has five pairs of appendages. The antennules are organs of balance, touch, and taste. Long antennae are organs for touch, taste, and smell. The mandibles, or jaws, crush food by moving from side to side.
What are the functions of the appendages that are found on the cephalothorax?