Ampithoe valida (Smith 1873)
Gnathopod 1 is subchelate. Article 2 of pereopods 3 and 4 is not strongly inflated (photo). The posterior lobe of gnathopod 1 article 5 is more than 40% of the length of the entire article (photo). Article 5 is as long as or longer than article 6.
The palm of gnathopod 2 is transverse, and bears a square tooth (photo). Epimeron 3 posterior ventral corner does not have a notch at the end of the intersecting ridge, and is angular. The lower lip lobes are separated by a narrow gap.
Found from the intertidal to 30m depth, usually on soft sediment among algae or eelgrass. May be found in estuaries.
Status in BC
Non-native (Levings et al. 2002)
Europe, eastern and western United States, Japan, and Argentina.