FIGURE 4. Pyrgopsella youngi, trophi. A. Labrum with overlying palps. B. Maxillae. C. Mandible. D. Maxillule. E in Pyrgopsella (Cirripedia: Balanomorpha: Pyrgomatidae) is not a sponge­inhabiting barnacle

FIGURE 4. Pyrgopsella youngi, trophi. A. Labrum with overlying palps. B. Maxillae. C. Mandible. D. Maxillule. E. Half of labrum. Scale bars: A–D = 500 µm; E = 200 µm.Published as part of Achituv, Yair & Simon-Blecher, Noa, 2006, Pyrgopsella (Cirripedia: Balanomorpha: Pyrgomatidae) is not a sponge­inhabiting barnacle, pp. 29-42 in Zootaxa 1319 on page 36, DOI: 10.5281/zenodo.27355