T^ENIADJ!. 73 



Sc. Nat. Art. Vers, 599 ; Dujardin, Hist. Nat. Helm. 559 ; Die- 

 sing, Syst. Helminth, i. 519. 



Hab. Intestines of the domestic Cat, Felis catus domesticus. 



a. From the collection of M. Siebold. 



b. From the collection of Dr. Leach. 



5. TAENIA POROSA. 



Taenia porosa, Rudolphi, Hist. Nat. Entoz. ii. pt. 2, 190, t. 10, f. 1 ; 

 Synopsis, 168 & 529, t. 3, f. 7, 8 ; Bremser, Icon. Helminth. 1. 16, 

 f. 10, 14 ; Schmalz, Tab. Anat. Entoz. t. 4, f. 21 (ova.) ; Blainville, 

 Diet. Sc. Nat. lvii. 599; Dujardin, Hist. Nat. Helminth. 561; 

 Diesing, Syst. Helminth, i. 546. 



Hab. Intestines of the lesser Black-backed Gull, Larus fuscus. 



From the collection of M. Siebold. 



6. T.ENIA LANCEOLATA. 



Taenia anserum, Frisch, Miscell. Berol. iii. 42; Bloch, Besch. Berl. 



N. Fr. iv. 553. 

 Tasnia acutissima (part), Pallas, N. Nord. Beyt. i. pt. 1, 78, t. 3, 



f. 26. 

 Taenia lanceolata, Bloch, Abhand. 9, t. 1, f. 5, 6: Goeze, Naturq. 



377, t. 29, f. 3-12 ; Batsch, Bandw. 165, n.' 20, f. 88-167 ; 



Schrank, Verzeichn. 39, n. 117; Gmel. Syst. Nat. 3075, n. 63; 



Tab. Encyc. t. 45, f. 15-24; Frolich, Naturf. xxv. 67; Rudolphi, 



Obs. i. 41 ; Hist. Nat. Entoz. ii. pt. 2, 84 ; Synopsis, 145 & 488 ; 



Bloch, Hist. Nat. Vers, i. 304; Lamlc. An. S. Vert. iii. 161, 



2nd ed. iii. 575; Dujardin, Hint. Nat. Helminth. 562, t. 9, f. F.; 



Diesing, Syst. Helminth, i. 521. 

 Halysis lanceolata, Zeder, Naturg. 338, n. 17. 



Hab. Intestines of the common Goose, Anas anser. 



From the collection of M. Siebold. 



7. T-esia Bkemseri, Baird. (Tab. II. f. 5.) 



Head of moderate size, surrounded with a double crown, composed 

 of upwards of 20 small hooks; neck very short; joints of body 

 numerous, at first very small and nearly oblong, gradually en- 

 larging in size as they descend, and becoming campanulate. 

 They are marked with numerous fine transverse lines, which 

 again are crossed by several strong longitudinal lines or grooves. 

 The inferior angles of each joint are slightly prolonged into a 

 point, and the margin is somewhat thickened (especially in the 

 lower joints of body), and undulately waved or slightly scal- 



H 



