TENIADA, 91 
6. Terrasorurit, Rudolphi. 
Head provided with four appendages in form of small ears or the 
petals of a flower. — 
11. BotHRIOcEPHALUS MACROCEPHALUS. 
Tenia immerina, Abidgaard, Dansk. Selsk. Skrivt. i. 58, 61; Vers, 
53, 56, t. 5, f. 2. 
Rhytis i immerina, Zeder, Naturg. 297, n. 9. 
Bothriocephalus macrocephalus, Rudolphi, Hist. Nat. Entoz. ii. 2, 
61; Synopsis, 140 & 478, n. 16; Leuckart, Zool. Br. i. 36, t. 1, 
£ 12; Bremser, Icon. Helminth. t. 13, f. 12, 13; Dujardin, "Hist. 
Nat. Entoz. 619. 
Tetrabothrium macrocephalum, Diesing, Syst. Helminth. i. 599. 
Hab. Intestines of the Red-throated Diver, Colymbus septentrio- 
nalts. 
From the collection of M. Siebold. 
oo 
12. BoTHRIOCEPHALUS CYLINDRACEUS. 
Bothriocephalus cylindraceus, Rudolphi, Synopsis Entoz. 140 & 
478, n.17; Dujardin, Hist. Nat. Helminth. 619. 
Bothriocephalus macrocephalus ? Leuckart, Zool. Br. 65; Dujar- 
din, 1. ¢. 
Tetrabothrium eylindraceum, Diesing, Syst. Helminth. 1. 600. 
Hab. Intestines of the common Gull, Larus canus. 
From the collection of M. Siebold. (Fragments only.) 
13. BotHRIOCEPHALUS AURICULATUS. 
Bothriocephalus auriculatus, ae Synopsis Entoz. 141 & 479, 
n. 18; Bremser, Icon. Helminth. t 3, f. 14-19; Dujardin, Hist. 
Nat. Helminth. 620. 
Bothriocephalus flos, Leuckart, Zool. Br. i. 34, t. 1, f. 8-11, t. 2, 39; 
Schmalz, Tab. Anat. Entoz. t. 4, f. 8 & 13? 
Hab. Intestines of the Weasel, Mustela vulgaris. 
From the collection of M. Siebold. 
* Specimen without the Head. 
14, BoruRtocerHatus TETRAPTERUS, Siebold. 
Hab. Intestines of the common Seal, Callocephalus vitulinus. 
