FIGURE 4. Petta pusilla Malmgren, 1866 in A revision of the genus Petta Malmgren, 1866 (Annelida: Pectinariidae), with two new species from deep waters of southeastern Australia, and comments on phylogeny of the family

FIGURE 4. Petta pusilla Malmgren, 1866. Methyl green stained body of the holotype (SMNH T361): A. Ventral view of anterior end; B. Close-up view of right branchia, dorsal view; C. Dorso-lateral view of anterior end; D. Close-up view of cephalic veil, ventral view; E. Lateral ear-shaped lobe; F. Scaphal hooks; G. Dorsal view of posterior end; H. Ventro-lateral view of posterior end; I. Lateral view of posterior end, showing lobes on lateral margin of scaphe. Abbreviations: ac, anal cirrus; an, anus; br, branchiae; bt, buccal tentacles; cv, cephalic veil; dms, dorsal margin of scaphe; hb, hump of branchia; lb, lamellae of branchia; lcv, lappets of cephalic veil; lel, lateral ear-shaped lobe; ll, lower lip; nec, neurochaetae; nep, neuropodium; noc, notochaetae; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet.