Fig. 13. Phalacrostemma perkinsi Kirtley, 1994 in New species of sabellariids (Annelida: Sabellariidae) from the Caribbean Sea and the Gulf of Mexico

Fig. 13. Phalacrostemma perkinsi Kirtley, 1994 (UMML-22.1191). A. Anterior region, dorsal view. B. Operculum, dorsal view. C. Anterior region, ventral view. D. Operculum, ventral view. E. Anterior region, lateral view. F. Another specimen (UMML-22.1192). Abbreviations: bf = buccal flaps; c1 = cirri 1st thoracic segment; c2 = cirri 2nd thoracic segment; nh = nuchal hooks; op = outer paleae; opa = opercular papillae; pa = palps. Numbers indicate the cirri. Scale bars: A, C = 1 mm; B, D–F = 0.5 mm.