142 



H.W. PALM 



16 



Fig. 16 Nybelinia scoliodoni. Scolex from Carcharhimts limbatus. Scale 

 bar=50 p.m. 



Fig. 17 N. scoliodoni. Homeomorphous basal and metabasal armature 

 consisting of rose-thorn shaped and falcate hooks. Scale bar=20 urn. 



Fig. 18 N. indica. Homeomorphous basal and metabasal armature 

 1992). Scale bar=20 urn. 



9. Nybelinia sp. 



Material examined. BMNH 1979.9.13.94, leg. R. vanderElst, 

 2 postlarvae from the kidney of Coryphaena hippurus, Cape Vidal, 

 South Africa. 



DESCRIPTION. The following measurements were taken: SL=1 172, 

 1228; SW=775, 907; pbo=888, 850; pv=624, 548; pb=252, 257; 

 ppb= 33, 38; app=364, 294; vel= 186; 150; BL=246 (234-247), 251 

 (224-266); BW=99 (84-112), 114 (112-117); BR=2.5:1, 2.2:1; 

 SP=3.5:2.5:1, 3.3:2.1:1. The tentacles are long, TL=586-606, 583 

 and slender, TW=32.8-35.2, 32.8-35.2 and a basal swelling is 

 absent. The tentacle sheaths are sinuous; TSW=32. 8-37.6, 32.8- 

 37.6. Prebulbar organs and muscular rings around the basal part of 

 the tentacle sheaths are absent. The retractor muscles originate at the 

 basal part of the bulbs. 



The tentacular armature is homeoacanthous, homeomorphous 

 and a characteristic basal armature is absent. The small and rose- 

 thorn shaped hooks are of the same size along the tentacle, 

 L=8.0-10.4, 8.0-10.4; B=8.8-11.0, 8.8-11.0; hsr=6. 



Remarks. The present specimens resemble N. oodes and N. riseri 

 as described by Dollfus (1960), both species having small rose-thorn 

 shaped homeomorphous hooks along the tentacle. N. riseri has a 



