Northern cleaner shrimp

Lysmata amboinensis

''Lysmata amboinensis'', the northern cleaner shrimp, is an omnivorous shrimp species, which will generally scavenge and eat parasites and dead tissue. ''L. amboinensis'' is naturally part of the reef ecosystem, and is widespread in the Red Sea and tropical Indo-Pacific.
Dental service Cleaner Shrimps - Lysmata amboinensis feeds by eating scraps of food, dead skin and parasites from other bigger marine animals, especially Moray Eels.  When Moray Eels wants the 'cleaning service' it will opens its mouth and gills to let the Cleaner Shrimps or Cleaner Wrasses to get into them and will not eat them.  The mouth opening is the signal for the Cleaner Shrimps to get into it and do their job.

In this picture, I managed to get my dive buddy to 'pretend' he is like a Moray Eel by opening his mouth and getting close to the Cleaner Shrimps.  Within seconds, the Cleaner Shrimps swam towards the opened mouth and starts to dig into the teeth for scraps of food. Cleaner Shrimp,Fall,Geotagged,Lysmata amboinensis,Mabul,Malaysia,Northern cleaner shrimp,Sabah

Behavior

It has been observed that fish with parasites may come to "cleaning stations" in the reef. Certain species of fish and several types of cleaner shrimp may assist the fish in large numbers and even go inside the mouth without being eaten.
Lysam_101119_ElmosLoleo_6c  Fall,Geotagged,Indonesia,Lysmata amboinensis,Northern cleaner shrimp

Reproduction

''Lysmata amboinesis'' hatches from eggs and goes through an incomplete metamorphosis at 5–6 months of age. After their metamorphosis they will moult every 3–8 weeks. Each shrimp starts out as a male, but after a few moults will become a hermaphrodite and will function as both male and female.

They will lay from 200–500 eggs in one spawning. Eggs appear on the hermaphroditic shrimps' pleopods and are greenish in colour; they swell and lighten in colour before hatching and a few will turn silver on the day of hatching. The eggs tend to hatch around dusk.

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Taxonomy
KingdomAnimalia
DivisionArthropoda
ClassMalacostraca
OrderDecapoda
FamilyHippolytidae
GenusLysmata
SpeciesL. amboinensis