Biology/Natural History: Often lives on rocks in association with the above anemones, remaining on the base of the column or foraging around on the oral disk picking up scraps. The shrimp seems immune to the anemone's nematocysts. They have been found in the guts of Pacific Halibut off Alaska.
As with other hippolytid shrimp, this species has no exopodites on its pereopods, the carpus of pereopod 2 is divided into 3-7 subunits (articles, a "multiarticulated carpus"), and a rostrum is present but if it has dorsal spines they are not movable. Lebbeus grandimanus has 7 articles on the carpus of its 2nd pereopod. It has one supraorbital spine. It has no exopodite on maxilliped 3, the rostrum is longer than the eye, the pleura of abdominal segments 2 and 3 are rounded, and leg 3 has no epipodite. The body is translucent and covered with bright yellow, blue, and red bands. Length to 4.5 cm.
- Wicksten,Mary K., 2009. ; Decapod Crustacea of the Californian and OregonianZoogeographic Provinces. ; UC San Diego Scripps Institution of OceanographyLibrary, Scripps Institution of Oceanography. ; http://escholarship.org/uc/item/7sk92dz ;418 pages. ; Published online only. ; This excellent key coversdecapods (crustaceans such as crabs, shrimp, spiny lobsters, hermit crabs,and crayfish) from shallow and deep water from Puget Sound south to thePacific coast of Baja California. ; Includes many subkeys, drawings,and photos. ; No glossary, table of contents, or index. ; Thisis the place to go for the most up-to-date key for decapods. ; MaryWicksten plans to publish an updated version of this key soon. http://www.wallawalla.edu/academics/departments/biology/rosario/inverts/Annotated_Bibliography.html#Wicksten+2009
- Jensen, Gregory C., 1995. ;Pacific Coast Crabs and Shrimps. ; Sea Challengers, Monterey, CA. ;87 pp. ; ISBN 0-930118-20-0. ; This paperback contains excellentpictures and brief descriptions of many crabs and shrimp from along thePacific coast. ; Sections are arranged by animal group. ; Includesa short glossary. http://www.wallawalla.edu/academics/departments/biology/rosario/inverts/Annotated_Bibliography.html#Jensen+1995
Geographical Range: Aleutian Islands, Alaska to Puget Sound
How to Distinguish from Similar Species: The bright colored bands on this shrimp are distinctive.