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Cicadellidae Scyllaridae ? Scyllaridae ? Ibacus ? Decapoda ?

Below is the nine-toothed fan shrimp Ibacus novemdentatus?, commonly known as the pipistrelle shrimp

The cephalothorax has four conspicuous protuberances on the median ridge, the anterior lateral teeth are simple, and the posterior margins are 7 to 8-toothed. The notch on the posterior part of the orbit is small and shallow. Anterior margin of cephalothoracic armor median into 1 spine-like protuberance. Anterior margin of prefrontal plate in 1 pair of triangles. Lateral armor of each ventral segment knife-shaped, caudal segment wider than long. The long segment of the third mandibular peduncle is expanded into an oval shape. Its ventral surface has 8 transverse grooves. In males, step 5 is not subclavate. The body is pale yellowish brown with reddish brown spots on the dorsal surface, the ventral surface of the cephalothoracic armor and the footsteps are brown and white, and the eggs are orange.

Inhabiting the flat waters of the continental shelf on sandy and muddy substrates at a depth of 37 to 400 meters, it usually lurks in the shallow sand on the seabed. The body is extremely flat, with a rather smooth or slightly sunken dorsal surface. Up to 19 centimeters long.