90 CATALOGUE OF ENTOZOA. 
Bothriocephalus claviceps, Rudolphi, Hist. Nat. Entoz. ii. pt. 2, 37 ; 
Synopsis, 136 & 472, n.3; Dwardin, Hist. Nat. Helm. 618 ; 
Leuckart, Monog. 49, +. 11, f.28; Deslongch. Enc. Méth. Vers, 
145; Blainville, Dict. Sc. Nat. vii. 610. 
Botryocephalus claviceps, Lamk. An. S. Vert. iii. 167, 2nd ed. iii. 
582. 
Dibothrium claviceps, Diesing, Syst. Helminth. i. 589. 
Hab. Intestine of the common Eel, Anguilla acutirostris. 
From the collection of M. Siebold. 
9. BoTHRIOCEPHALUS ANTHOCEPHALUS. 
Tznia phocarum, Fabricius, Faun. Groenl. 316, n. 296; Dansk. 
Selsk. Skrivt. i. 2, 1538-155, t. 10, f.3. 
Tenia phoce, Muller, Naturf. xiv. 179; Batsch, Bandw. 232, n. 2 ; 
Schrank, Verzeich. 50, n. 153; Gmel. Syst. Nat. 3073, n. 52; 
Goeze, Naturg. 372 (note); Bosc, Hist. Nat. Vers, i. 302; Des- 
longch. Ene. Méth. Vers, 715; Lamk. An. S. Vert. 2nd ed. iii. 
575. 
Alyselminthus lanceolato-lobatus, Zeder, Nachtraq, 246. 
Alyselminthus phocarum, Blainville, Dict. Sc. Nat. lvii. 607. 
Halysis lanceolato-lobata, Zeder, Naturg. 329, n. 1. ae i 
Teenia anthocephala, Rudolphi, Hist. Nat. Entoz. ii. pt. 2,91; Syn- 
opsis, 146, n. 8; Dujardin, Hist. Nat. Helm. 591. 
Tetrabothrium anthocephalum, Diesing, Syst. Helminth. i. 601. 
_ Hab. Tntestines of the Leporine Seal, Phoca barbata. From Baffin’s 
Bay. 
Presented by Capt. Sabine. 
10. BoTHRIOCEPHALUS ANTARCTICUS, Baird. 
Head conical, elongated, smooth, with two lateral fossettes oppo- 
site. At the lower margin of each fossette there are two small 
rounded lobes projecting. Body rounded. From the neck some 
way downwards it is quite round or cylindrical, and the arti- 
culations are very numerous and very small, appearing like 
mere ridges across. Lower down the body becomes flatter, and 
the joints larger and more developed; the lower margin thin. 
An impressed line runs along the centre of the body through 
its whole length. 
Length about 9 inches, greatest breadth of body about 3 lines. 
Hab. Stomach and intestines of a Seal caught about and within 
the Antarctic circle. 
Presented by the Admiralty. — ; 
