The shell of this organism is notably swollen, with valves of normal shape and margins lacking an irregular canal system or radiating septa at the anterior margins. The surface of the valves is strongly punctured with small pits, resembling a thimble pattern. The lateral portion of the carapace is prominently swollen, with a convex dorsal margin and a concave and sinuated ventral margin. The natatory setae of the antennae extend at least to the tips of the terminal claws. The furcal rami are typically less than half the length of the valves, and the second segment of leg 2 bears a single seta. The dorsal seta is normal, and the furca is symmetrical, with a breadth of at least three-quarters of the length. Its coloration is green, with a length of 1.2 mm, a height about three-fifths of the length, and a width three-quarters of the length. Upon hatching, the larva emerges as a nauplius with three pairs of appendages: antennules, antennae, and mandibles. Throughout its life cycle, there are eight moults and eight different instars, with the adult representing the ninth instar. With each successive moult and instar, more appendages and structural complexity develop. For example, the caudal rami first appear during the fourth instar, and the copulatory organ emerges during the eighth instar. Sexual maturity is attained during the ninth instar.