FIGURE 4 in New records of family Hormathiidae (Cnidaria: Actiniaria) from Brazilian coast with description of Paraphelliactis labiata n. sp.

FIGURE 4. External view and histology of Paraphelliactis labiata n. sp. A) Longitudinal section of the uppermost part of the column showing the marginal sphincter muscle (arrow). B) Cross section of a tentacle showing the ectodermal longitudinal musculature (arrow). C) Top view of the body, evidencing the oral disc and one of the two siphonoglyphs (arrow) D) Cross section of the column at actinopharynx level showing cycles of mesenteries (roman numbers), and unpaired mesentery of the fourth and fifth cycle (asterisk) E) Scheme of the mesenterial arrangement shown in D (mesenteries of fifth cycle indicated by asterisks). Abbreviations: Lm, longitudinal muscle; Me, mesoglea; Ms, marginal sphincter; Pa, parietobasilar muscle; Re, retractor muscle; S, siphonoglyph. Scale bars: A, D, 500 µm; B, 200 µm; C, 10 mm.Published as part of De Melo, Yago A., Targino, Alessandra K.G. & Gomes, Paula B., 2020, New records of family Hormathiidae (Cnidaria: Actiniaria) from Brazilian coast with description of Paraphelliactis labiata n. sp., pp. 557-574 in Zootaxa 4766 (4) on page 564, DOI: 10.11646/zootaxa.4766.4.3, http://zenodo.org/record/376572