Brown Sandfish, Bohadschia marmorata
The Brown Sandfish (Bohadschia marmorata) is a species of sea cucumber belonging to the family Holothuriidae. It resides on the seabed in shallow waters within the Indo-Pacific region.
The individuals of this species are cylindrical shaped and can grow to about 14 inches long. The body wall is tough and leathery and has an uneven texture because of the calcareous spicules it has. It’s covered in translucent papillae up to .39 inches across and a few short spines. The anterior end is somewhat narrowed and has a mouth surrounded by a ring of retractile tentacles. The posterior is rounded off and has an anal opening. Adjoining this is the cloaca through which defensive white colored sticky threads, the cuvierian tubes, may be ejected when the animal is stressed. The cloaca is also connected to the respiratory tree, into and out of which water is pumped for the exchange of gas. The color of the body is cream or orange colored partly obscured by a variety of numbers of dark brown colored speckles and blotches. On the underside is a wide and pale colored longitudinal stripe and many short and slender tube feet with knobby tips.
This species is located in the Indo-Pacific Ocean. The range extends from the Red Sea and the east coast of Africa to Japan, the Philippines and Australia. It resides on the sandy or gravelly bottoms of shallow water areas and seagrass meadows at depths of down to about 118 feet. It’s frequently semi-submerged in the sand.
Being a detrivore, it utilizes its tube feet to move around and scoop sand, mud, and debris into its mouth with its oral tentacles. After processing this material in its gut, it voids the remains, leaving a characteristic trail of sand on the seabed.