258 D i e s i n g. 



4. Caput botliriis subellipticis, cupula terminali. Corpus con- 

 tinuum, vesicula pulsatoria postica. 



Scolex Belones belones Wagener: in Nov. Act. J. c. 72 et 75. Tab. IX. 

 111, XII. 146. 



Habitaculum. Betone Acus: in ventriculo et intestinis 

 (Wagener). 



5. Caput subtriquetrum, bothriis suborbicularibus, cupula 

 terminali interdum myzorhynchum s. haustellum retractile emit- 

 t eute- Corpus fusiforme antice truncatum. Longit. 3 /V" — 1"'. 



Scolex (Gymnoscolex) triqueter Molin: in Sitzungsb. der kais. Akad. 

 XXXIII. 291. — Idem in Denkschr. XIX. 229. 



Habitaculum. Betone Acus: in intestinis, Majo, Patavii 



(Molin). 



6. Caput cupula terminali , bothriis. . . . Corpus continuum, 

 vesicula pulsatoria postica. 



Scolex Exocoeti exilientis Wagener: 1. c. 72. Tab. IX. 114. 

 Habitaculum. Eccocoetus eocsiliens : in ventriculo et intestinis 

 (Wagen er). 



7. Caput bothriis ovalibus, cupula terminali. Corpus a capite 

 strictura discretum, continuum, ovale vel subfusiforme. 



Scolex Scyllii Caniculae Beneden: 1. c. 74 et 187. Tab. I. 19, 20. — 

 Diesing: in Sitzungsb. XIII. 576. 



Habitaculum. Scyllium Canicula: in intestinis, Ostendae 

 (Ben ed en). 



8. Caput longissimum, bothriis multo brevioribus, cupula ter- 

 minali ampla. Corpus continuum, retrorsum attenuatum. 



Scolex Rajae spec. Van Beneden: I. c. 74. Tab. I. 23. 



Scolex Rajae batis Van Beneden: ibid 74. Tab. 1, 21. 22. 



Scolex (Gymnoscolex) megantlema Diesing: in Sitzungsb. XIII. 575. 



Habitaculum. Rajae spec. incerta: in ventriculo. — 

 R. Batis: in intestinis Ostendae (Beneden). 



9. Caput breviter fusiforme, bothriis ellipticis, cupula subcy- 

 lindrica, cavo interno infundibuliformi. Corpus continuum conicum. 

 Longit. i/ 2 '". 



Scolex (Gymnoscolex) Cornucopia Molin: in Sitzungsb. der kais. Akad 

 XXXIII. 292. — Idem in Denkschr. XIX. 230. Tab. V. 13. 



