. Bulletin of the British Museum (Natural History) Zoology. 74 S. PRUDHOE Cestoplana rubrocincta (Grube, 1840) Localities. Under stones at low tide, Boa Vista, Cape Verde Is (Laidlaw, 1906); East Beach, Pram Pram, Ghana (Miss M. A. Tazelaar leg.). Known also from English Channel, the Mediterranean and Japan. Descriptions. Lang, 1884:516; Stummer-Traunfels, 1933: 3573; Kato, 1937a:225. Cestoplana filiformis Laidlaw, 1903 Locality. East African coast (Laidlaw, 1903). Description. Laidlaw, 1903a: 110. Note. Kato (1937a) regarded this species as a variety of C. rubrocincta. Cestoplana polypora Mey
. Bulletin of the British Museum (Natural History) Zoology. 74 S. PRUDHOE Cestoplana rubrocincta (Grube, 1840) Localities. Under stones at low tide, Boa Vista, Cape Verde Is (Laidlaw, 1906); East Beach, Pram Pram, Ghana (Miss M. A. Tazelaar leg.). Known also from English Channel, the Mediterranean and Japan. Descriptions. Lang, 1884:516; Stummer-Traunfels, 1933: 3573; Kato, 1937a:225. Cestoplana filiformis Laidlaw, 1903 Locality. East African coast (Laidlaw, 1903). Description. Laidlaw, 1903a: 110. Note. Kato (1937a) regarded this species as a variety of C. rubrocincta. Cestoplana polypora Meyer, 1922 Locality. Koseir, Red Sea. (Meyer, 1922). Description. Meyer, 1922:149. Note. Faubel (1983) erected the genus Cestoplanoida for this species on account of its multiple female copulatory complexes. Family EMPROSTHOPHARYNGIDAE Bock, 1913 Diagnostic features. Elongate-oval forms, without ten- tacles. Cerebral and tentacular eye-clusters distinct, the latter slightly posterior to level of former; submarginal eyes arranged in an irregular band of varying width and length; few frontal eyes may lie between submarginal eyes and cerebral eye- clusters. Pharynx closely posterior to cerebral organ; in- testinal trunk reaching to copulatory organs; intestinal branches not anastomosing. Genital pores separated in pos- terior region of body. Male copulatory complex anterior to its aperture. Vasa deferentia unite to form a long muscular canal leading to muscular seminal vesicle; pyriform prostate inter- polated, with smooth epithelium, its distal end forms base of penis-papilla, occasionally bearing a stylet. Vagina forms a short anteriorly-directed loop; Lang's vesicle absent; uterine canals anteriorly separated. Genus EMPROSTHOPHARYNX Bock, 1913 Diagnostic features. With characters of family. Emprosthopharynx vanhoffeni Bock, 1931 Locality. Sao Vicenta, Porto Grande, Cape Verde Is and Morocco (Bock, 1931); Port Etienne, Mauretania (de Beau- champ, 1951ft); near Accra, Ghana,
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