species U. vocans borealis and U. lactea lactea, showed that the second maxilliped
of both species had the well-developed, spoon-tipped setae adapted for sorting sand
particles (Crane, 1975). In addition, U. vocans borealis had needle-like setae whereas
U. lactea lactea had both needle-like and brushy setae (Table III). According to Ono
(1965), the brushy setae act to some extent as a sieve for feeding on tidal flats, while
the needle-like setae are adaptive to feeding under shallow water where they are used
for scouring small food and silt particles from the sediment. There was no statistical