Ryan Photographic - Rhynchocinetidae - Hingebeak shrimps
Family Rhynchocinetidae
The family Rhynchocinetidae contains mostly small, often nocturnal shrimp. In my experience they are white-light shy so photographing them is difficult. The recent development of red light LED lights has increased the probability of good shots. The family is referred to as the hinge-beak shrimps because the rostrum, the long spine that projects forward between the eyes is movable. But they are also known, much more romantically, as the dancing shrimps. This term is a reference to the way they move over their substrate, reminsicent, according to folk with an amzing imagination, of a tango dancer ...
They are typically red and white or orange and white and have large eyes.
Cinetorhynchus species Dancing or hingebeak shrimp

Cinetorhynchus species Kri Eco, Raja Ampat IMG_8247
Rhynchocinetes durbanensis Dancing shrimp

Rhynchocinetes durbanensis Dancing shrimp Puerto Galera, Philippines IMG_8046

Rhynchocinetes durbanensis Durban hinge-beaked shrimp, Raja Ampat, West Papua IMG_2212

Rhynchocinetes durbanensis Durban hinge-beaked shrimp, Raja Ampat, West Papua IMG_2219