FIGURE 4 in Four new species of the subterranean amphipod genus Stygobromus (Amphipoda: Crangonyctidae) from shallow groundwater habitats on the Coastal Plain and eastern margin of the Piedmont in Maryland and Virginia, USA

FIGURE 4. Stygobromus caecilius, sp. n. Belvedere Seepage Woods, Cecil County, Maryland. Holotype specimen (2.0–2.5 mm): (a, b, c, d, e) pereopods 3, 4, 5, 6, 7; (f) bifurcate lateral sternal gill (process); (g) pleonal plates 1, 2, 3; (h) pleopod; (i, j, k.) uropods 1, 2, 3; (l) telson. Pereopods, pleonal plates and bifurcate lateral gill drawn to same scale; all other structures (uropods, pleopod & telson) to larger scale.