* Color: Brown or black with white or yellow spots
* Body shape: Round and elongated with a long, prehensile tail
* Head: Small with a long snout and large eyes
* Dorsal fin: Located near the tail
* Pectoral fins: Small and located near the head
* Pelvic fins: Absent
* Anal fin: Small and located near the tail
* Caudal fin: Fan-shaped and located at the end of the tail
* Other features: A potbelly seahorse has a unique prehensile tail that it uses to anchor itself to seaweed or other objects. It also has a long snout that it uses to suck in food.