. Bulletin of the Natural History Museum Zoology. . Fig. 6 Nybelinia lingualis from Torquigener pleurogramma. Scolex. Scale bar=100 |im. Fig. 7 iV. lingualis from T. pleurogramma. Homeomorphous basal armature consisting of rounded hooks without anterior extension of the basal plate. Scale bar=10 um. identified as belonging to Nybelinia riseri on basis of the character- istic scolex form. It has to be kept in mind that the tentacles of the present specimens were not completely evaginated. The present finding represents a new host and locality record. 6. Nybelinia sakanariae sp. nov. (Figs 12-13


. Bulletin of the Natural History Museum Zoology. . Fig. 6 Nybelinia lingualis from Torquigener pleurogramma. Scolex. Scale bar=100 |im. Fig. 7 iV. lingualis from T. pleurogramma. Homeomorphous basal armature consisting of rounded hooks without anterior extension of the basal plate. Scale bar=10 um. identified as belonging to Nybelinia riseri on basis of the character- istic scolex form. It has to be kept in mind that the tentacles of the present specimens were not completely evaginated. The present finding represents a new host and locality record. 6. Nybelinia sakanariae sp. nov. (Figs 12-13) Material examined. Holotype and paratype, BMNH , Hecht leg., 2 postlarvae from the stomach of Xiphiurus capensis, South Africa. Additional material: BMNH , Hecht leg., 1 postlarva from the testes of Trachurus trachurus, Algoa Bay, South Africa. Description (Fig. 12). Measurements: SL=1512,1507; SW=775, 747; pbo=700, 700; pv=680, 647; pb=397, 386; ppb=94, 100; vel=360,335;app=360,335;BL=387,335;BW=116,113;BR=:l, 3:1; SP=:1, :1. A basal tentacle swelling is absent. TW=51-56. The tentacle sheaths are short, little coiled with a TSW=51-56. Prebulbar organs and muscular rings around the basal part of the tentacle sheaths are absent. The retractor muscles origi- nate in the basal part of the bulbs. The armature is homeoacanthous, homeomorphous, and con- sists of compact rose-thorn-shaped tentacular hooks (Fig. 13); upper basal and metabasal armature, L=16-22; B=). Characteristic basal hooks are absent. However, the hooks dimin- ish in size towards the basal part of the tentacles (L= 12-14; B=ll-13);hsr=6-7. Additional material. SL=3270; SW=1020; pbo=1134; pv=l 172; pb=605; ppb=567; vel=756; app=740; BL=580; BW=147; BR=:1; SP=2:2:1. The tentacles are short and a basal tentacle swelling is absent. TW=56-61. The tentacle sheaths are straight, prebulbar organs and muscular rings around the basal part of the tentacle sheaths are absent.


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Keywords: ., bhlconsortium, bookc, bookcentury1900, bookcollectionbiodiversity