Synalpheus stimpsonii (De Man, 1888)
Crinoid snapping shrimp
photo by www.tropicalfavourites.com

Family:  Alpheidae (snapping shrimps)
Max. size: 
Environment:  reef-associated; marine; depth range 1 - 155 m
Distribution:  Indo-West Pacific: Eastern Africa to Japan, Australia and Gilbert Islands.
Diagnosis:   
Biology:  Minimum depth from Ref. 101096. Epizoic, subtidal on hard bottom (Ref. 106854). Found in dead coral heads and under rocks. Frequently associated with crinoids and occasionally with alcyonarians (Ref. 69553). Feeds on the mucus produced by feather stars and being a commensal, they also protect the feather star from its predators (Ref. 85383).
IUCN Red List Status: Not Evaluated (N.E.) Ref. 123251)
Threat to humans:  harmless
Country info:   
 

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