FIGURE 6 in Cestodes of Pseudobatos horkelii (Müller and Henle) (Rhinopristiformes) including Rhinebothrium quequense n. sp. (Rhinebothriidea) and Caulobothrium pieroi n. sp. ("Tetraphyllidea") from the southwestern Atlantic

FIGURE 6. Light micrographs of Caulobothrium species from the southwestern Atlantic. A—Caulobothrium pieroi n. sp., detail of the anterior loculus with apical sucker (arrow) (holotype MACN-Pa No. 779). B—Caulobothrium pieroi n. sp., detail of the posterior loculus (double) (paratype MACN-Pa No. 780/2). C—Caulobothrium uruguayense, showing two columns of paired loculi (arrows) (paratype USNM No. 1371263). D—Caulobothrium ostrowskiae, anterior portion of bothridium showing a single anteriormost loculus (paratype USNM No. 1371264).