()5J CATALOGUE OF ENTOZOA. 



5. ECHINORHYNCHUS POLYMORPHUS. 



Var. a. 



Sipunculus lendix, Phipps, Voyage to the North Pole, 194, t. 13, 

 f. 1, A.-C. 



Echinorhynchus Anatis Mollissima, Mullet, Naturf. xxii. 57 ; Ru- 

 dolphi, Hist. Nat. Entoz. ii. pt. 1, 304. 



Echinorhynchus borealis, Grnelin, Syst. Nat. 3045, n. 10 ; Rathke, 

 Dansk. Selsk. Skrivt. i. 71 ; Zeder, Naturg. 161, n. 38; Bosc, Hist. 

 Nat. Vers, ii. 6. 



Echinorhynchus filicollis, Rudolphi, Hist. Nat. Entoz. ii. pt. 1, 

 283 ; Synopsis, 71 & 327, n. 35 ; Drummond, Mag. Nat. Hist. 

 1839 ; Bellingham, Ann. & Mag. Nat. Hist. 1844, xiii, 257. 



Var. /3. 



Echinorhynchus minutus coccineus, Goeze, Naturg. 165, 1. 13, f. 1, 2. 



Echinorhynchus anatis boschadis, Goeze, 1. c. 163, t. 13, f. 6, 7. 



Echinorhynchus boschadis, Schrank, Verzeichn. 27, n. 88; Frolich, 

 Naturf. xxix. 66 ; Bosc, Hist. Nat. Vers, ii. 6. 



Echinorhynchus anatis, Grnelin, Syst. Nat. 3045, n. 12; Tab. 

 Encyc. t. 38, f. 1, A. B.; Schrank, Verzeichn. 26, n. 87 ; Frolich, 

 Naturf. xxix. 68 ; Bosc, Hist. Nat. Vers, ii. 6. 



Echinorhynchus merulse, Grnelin, S. N. 3046, n. 18, 1. 



Echinorhynchus minutus, Zeder, Nachtrag, 142; Naturg. 158, 

 n. 27; Rudolphi, Hist. Nat. Entoz. ii. pt. 1, 295; Lamarck, An. 

 S. Vert. iii. 199, 2nd ed. iii. 643. 



Echinorhynchus vesiculosus, Schrank, Vetensk. Acad. N. Handl. 

 1790, 124, n. 26. 



Echinorhynchus constrictus, Zeder, Nachtrag, 139; JSaturg. 158, 

 n. 26; Rudolphi, Hist. Nat. Entoz. ii. pt. 1, 296; Lamarck, An. 

 S. Vert. iii. 200, 2nd ed. iii. 644. 



Echinorhynchus tenuicollis, Frolich, Naturf. xxix. 69, t. 2, 

 f. 15, 16. 



Echinorhynchus collaris, Schrank, Vet. Acad.N. Handl. 1790, 124, 

 n. 27 ; Zeder, Naturg. 159, n. 32 ; Rudolphi, Hist. Nat. Entoz. 

 ii. pt. 1, 298. 



Echinorhynchus versicolor, Rudolphi, Synopsis, 74 & 330, n. 44 ; 

 Bellingham, Ann. & Mag. Nat. Hist. 1844, xiii. 258. 



Echinorhynchus anatum, 'Rudolphi, Synopsis, 78, n. 78.^ 



Echinorhynchus polyniorphus, Jassoy, Diss, inaug.de Eclnn. Poly- 

 morph. 1820; Westrumb, Helminth. Acanth. 33, n. 64, t. 3, 

 f. 8-15 ; Dujardin, Hist. Nat. Helminth. 523; Diesing, Syst. Hel- 

 minth, ii. 49. 



Hob. a. Intestines of the Wild Duck, Anas Boschas (Echin. fili- 

 collis, Rud.). 



h. Intestines of the Scaup Duck, Fuligula marila (Echin. versi- 

 color, Rud). 



From the collection of M. Siebold. 



