FIGURE 2 in Phylogenetic relationships, host associations, and three new species of a poorly known group of "tetraphyllidean" tapeworms from elasmobranchs

FIGURE 2. Scanning electron micrographs of Pentaloculum macrocephalum Alexander 1963. (A) Scolex, small letters indicate location of details in micrographs B–F. (B) Distal bothridial surface densely covered with long-tipped aristate gladiate spinitriches interspersed with gladiate spinitriches and capilliform filitriches. (C) Cephalic peduncle densely covered with large gladiate spinitriches, filitriches not observed. (D) Proximal surface of anteriormost loculus densely covered with longtipped aristate gladiate spinitriches interspersed with gladiate spinitriches and capilliform filitriches. (E) Proximal surfaces of anterior pair of loculi densely covered with long-tipped aristate gladiate spinitriches interspersed with gladiate spinitriches and capilliform filitriches. (F) Proximal surfaces of posterior pair of loculi densely covered with long-tipped aristate gladiate spinitriches interspersed with gladiate spinitriches and capilliform filitriches.