. Bulletin of the Natural History Museum Zoology. 130 PALM AND T. WALTER. Fig. 9 Mature proglottid of Kotorella pronosoma (Nybelinia herdmani). Scale bar= 100 urn. Table 1 Scolex measurements (in um) of Kotorella pronosoma (Stossich, 1901) Euzet & Radujkovic, 1989 and Nybelinia herdmani (Shipley & Hornell, 1906) (n=number of specimens examined) species Kotorella pronosoma Nybelinia herdmani Author / Year Euzet & Radujkovic (1989) Shipley & Hornell (1906) Pintner (1930) Present study n 2 Scolex length: 650 Scolex width1 - Pars bothridialis 380 Pars vaginalis 550 Pars bulbos
. Bulletin of the Natural History Museum Zoology. 130 PALM AND T. WALTER. Fig. 9 Mature proglottid of Kotorella pronosoma (Nybelinia herdmani). Scale bar= 100 urn. Table 1 Scolex measurements (in um) of Kotorella pronosoma (Stossich, 1901) Euzet & Radujkovic, 1989 and Nybelinia herdmani (Shipley & Hornell, 1906) (n=number of specimens examined) species Kotorella pronosoma Nybelinia herdmani Author / Year Euzet & Radujkovic (1989) Shipley & Hornell (1906) Pintner (1930) Present study n 2 Scolex length: 650 Scolex width1 - Pars bothridialis 380 Pars vaginalis 550 Pars bulbosa 110 Bulb length 100 Bulb width 60 Velum 140 Bulb length/bulb width 1,6: 1 pbo/ 3,5 : 5 : 1 Tentacle length 250-275 Tentacle width 12-15 3/4 1000 80-100 Short 900 (880)2—1000 600(570-630) 615(590-640) 155(150-160) 160(140-180) 110(90-130) 160(140-180) 1,5: 1 3,9 : 4,0 : 1 980(900-1060) 374 (297-450) 610 (570-650) 615(590-640) 192(188-195) 170(160-180) 100(90-110) 160(140-180) 1,7: 1 3,2 : 3,2 : 1 308 (260-357) 16-29 1 Maximum width 2 Pintner (1930) in Dollfus (1942) drawings by Dollfus (1942) are considered to belong to N. africana, N. africana has now been reported to occur all around Africa, from the Mediterranean, the Gulf of Suez and the north-west and south- east African coasts (Dollfus, 1942,1960, Palm etal., 1997). Similarly, Kotorella pronosoma (N. herdmani) is known to occur in the Medi- terranean (Euzet & Radujkovic, 1989) and in the Indian Ocean (Shipley & Hornell, 1906). This indicates not only a transoceanic distribution pattern for the tentaculariid trypanorhynch species within the genera Tentacularia and Nybelinia but also for Kotorella. Thus, it seems that the tentaculariid trypanorhynchs sensu Palm (1995, 1997) not only demonstrate a remarkable morphological uniformity within the family but also a similar distribution pattern, indicating a similar life cycle biology. This supports the suppression of the family Kotorellidae Euzet & Radujkov
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