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EXPLANATION OF THE PLATES. 
a.s. = superior antenna. 
ai. = inferior antenna. 
md. = mandible. 
mxp. = maxillipede. 
gn. = first gnathopod. 
gn.” = second gnathopod. 
prp.2 = first pereiopod. 
ur. = terminal portion of pleon with uropoda. 
T. = telson. 
