123] PROTEOCEPHALIDAE—LA RUE 123 



Batsch Bandw. p. i8i n. 27. fig. 105-108. Taenia torubsa. 



Schrank Verz. p. 49. 11,150. T. orbicularis. 



Gmel. Syst. n. p. 3081. n. 85. T. torulosa. 



Frolich im Naturf. 25. p. 58-61. T. 3. fig. 4-6 T. simplex. 



Zeder Nachtrag p. 220. Rhytelminthus Cyprini. 



Rudolphi in Wied. Arch. iii. i. p. no. Taenia torulosa. 



Zeder Naturg. p. 352. n. 39. Halysis torulosa. 



"Hab. in ventriculo vel intestinis Cyprinorum. In Cyprino lese Bloch et ego 

 Aprili, in Orfa Frolichius eodem, in Leticisco Zederus Majo mense, reperimus. 



"Descr. Vermes Zederiani septem ad novem lineas longi, dimidiam lati ; 

 Frolichiani duos ad quinque pollices longi, postice lineam lati ; mei pedem non 

 superantes vix lineam dimidiam lati ; Blochiani duos pedes longi, lineam et quod 

 excurrit lati. 



"Caput truncatum, depressum, sub motu polymorphum, inflatum et osculorum 

 directionem sum mopere mutans ; haec circularia, concava, marginata, margine 

 simplici \el duplici, interdum occultato ; mox omnia quatuor, mox duo tantum in 

 conspectum veniunt, ceterum oculis nudis usurpanda. Collum depressum, medio- 

 cre, a capite crassiore discretum. Corpus crassiusculum, subaequale, margine cre- 

 natum, articulis confluentibus, margine postico vix incumbentibus. 



"Obs. I. Blochius specimina sex maxima vidit, eorumque articulos quam in 

 meis magis discretos, ovis farctos, et foramina marginalia (haec tamen non ulte- 

 rius exposita, neque delineata) observavit. Frolichiani vermes a meis vix ulla 

 nota differunt, nisi quod collum longum dicat, quod ipse mediocre, Blochius breve 

 vocaverit, hoc autem vermis totius ratione habita facile explicatur ; in vermlbus 

 enim bipedulibus collum vix pollicare Blochio breve visum, quod Frolichio in 

 bivel quinquepollicaribus longum, mihi in pedalibus mediocre fuerit. 



"Obs. 2. Zederiani vermes valde pusilli fuere, ideoque a nostria megis dis- 

 tant; ab osculis quatuor suctoriis totidem canales oriebantur, in corpore progressi, 

 tandem in unicum vas abeuntes, quod in cauda obtuso-acuta terminabatur. Haec 

 vasa mihi non visa, sed vermes illi tenelli plani, ideoque pellucidi fuere, nostri 

 muto crassiores, fere teretiusculi. Zederus etiam postea ipse Rhytelminthum cy- 

 prini olim sibi dictum ad T. torulosum pertinere suspicatus est, quod olim in 

 diario Wiedemanniano aeque indicaveram. Conf. etiam Taeniam Cyprini Idi n. 

 114. dictam." 



Rudolphi (1819:150) stated that this species had been found by 

 Bloch, Frolich, Zeder and himself in certain species of the Cyprinidae. 

 Dujardin (1845:584) made no record of finding this species. He col- 

 lected his data from descriptions by Zeder, Frolich, and Bloch, His 

 description reads: '* — Long de 16 a 20 mm, et large de 1,12 mm. 

 (Zeder), ou large de 50 a 135 mm, et large de 225 mm (Froelich), ou 

 long de 330 mm, large de 1.2 mm, (Rud.), ou enfin long de 660 mm, 

 large de 225 a (?) (Bloch) ; — tete tronquee, de forme tres- variable, 

 ainsi que ses ventouses dont le bord est saillant; — trompe nuUe; — cou 

 de longueur mediocre ; — articles assez epais, presque ronds. ' ' 



