48 CATALOGUE OF ENTOZOA. 
Holostomum cornu, Dujardin, Hist. Nat. Helminth. 374. 
Hab. Intestines of the common Heron, Ardea cinerea. 
From the collection of M. Siebold. 
5. HoLostoMUM LONGICOLLE. 
Amphistoma longicolle, Rudolphi, Synopsis Entoz. 87 & 352, n. 1; 
Bremser, Icon. Helminth. 68, £.15,16; Blainville, Dict. Sc. Nat. 
lvii. 583; Guerin, Icon. Regn. An. Zooph. t. 10, f. 3. 
Holostomum longicolle, Dujardin, Hist. Nat. Helminth. 374. 
Hab. Intestines of the Black-headed Gull, Larus ridibundus. 
From the collection of M. Siebold. 
6. HoLostoMUM SPATHACEUM. 
Distoma spathaceum, Rudolphi, Synopsis Entoz. 109 & 403, n. 83. 
Holostomum spathaceum, Dujardin, Hist. Nat. Helminth. 375; 
Nordmann, in Lamk. Hist. An. S. Vert. 2nd ed. iii. 628. 
flab. Intestines of the Herring Gull, Larus argentatus. 
From the collection of M. Siebold. 
7. HoLostoMUM SPATULA. 
Amphistoma macrocephalum (part), Rudolphi, Synopsis Entoz. 88 ; 
Bremser, Icon. Helminth. t. 8, f. 17 & 20. 
- Holostomum spatula, Creplin, Nov. Obs. de Entoz. 50; Mehlis, Isis, 
1831, 175; Nordmann, in Lamk. An. S. Vert. 2nd ed. iii. 628 ; 
Dujardin, Hist. Nat. Helminth. 369. 
Hab. Intestines of the Sparrow Hawk, Accipiter nisus. 
From the collection of M. Siebold. 
8. HoLostoMUM PLATYCEPHALUM. 
Holostomum platycephalum, Creplin, Nov. Obs. de Entoz. 39; 
Dujardin, Hist. Nat. Helminth. 376. 
Hab. Bursa Fabricii of the Red-throated Diver, Colymbus septen- 
trionalis. * 
From the collection of M. Siebold. 
9. HotostoMUM VARIEGATUM. 
Holostomum variegatum, Creplin, Observ. de Entoz. 38, f. 4-6; 
Dujardin, Hist. Nat. Helminth. 376. 
Hab. Intestines of the lesser Black-backed Gull, Larus fuscus. 
From the collection of M. Siebold. 
