FIGURE 6. Paguritherium alatum Reinhard 1945 in A review of the endoparasitic isopods (Epicaridea: Entoniscidae) from hermit crabs, including description of the new subfamily Diogenioninae and a new species of Paguritherium Reinhard, 1945 from the Philippines

FIGURE 6. Paguritherium alatum Reinhard 1945, female (A–D). A. Cross section of hermit crab Pagurus longicarpus showing position of ovigerous female P. alatum within abdomen; body of parasite shown in black, oostegites with developing larvae shown by black dots; the pleon extends to an opening at the base of the eyestalk (arrow). B. Adult female removed from abdomen of host (enclosing sheath and contents of brood pouch removed). C. Ovigerous female with embryos present in brood pouch. D. Head of female. Male (E–H = USNM 1522336). E. Lateral view of male. F. Head of male, ventral view. G. Ventral view of male. H. Male right pereopods 5–7. Epicaridium larva (I–O; N = USNM 1522337). I. Antennule. J. Antenna. K. Pereopod 4 (could be any of 1–5, see Remarks under P. alatum). L. Pereopod 5 (could be any of 1–5, see Remarks under P. alatum). M. Pereopod 6. N. Pereopods 5 (on right) and 6 (on left). O. Pleopod 5. Abbreviations: A1, antennulae; A2, antennae; Hd, head; He, heart; Md, mandibles; Mx, maxillae, Mxp, maxillipeds; O1–O4, oostegites 1–4; P1, pereopod 1. Scale bars: G = 200 µm; H = 25 µm; N = 10 µm; rest not to scale. A–F modified from Reinhard (1945); J–M, O modified from Adkison (1990).