cakyjukni lujvo

j1 is a crustacean of species/class j2.

Cf. calku, jukni, braxiura, nerfopi.

In notes:

braxiiura
x1 is a crab (infraorder Brachyura) of species/section x2
braxiura
j1 is a crab of species/section j2.
karkino
x1 is a crab (type of aquatic crustacean) of type x2
lokra
x1 is a crustacean of order/family/species x2
lokrmaia
x1 is a spider crab of species/breed x2
nerfopi
x1 is a lobster of species x2.
xasyjukni
j1 is a crab/lobster/crayfish/shrimp/krill/[marine crustacean] of species j2.