O i <w D i e s i n g - . 



Status inevolutus. 



Ligula monogramma stat. inevol.— Syst. Helm. I. 579. N. I (cum synon.). 

 Ligula digramma Creplin, in: Ersch et Gruber Encycl. XXXII. 296 et in 

 Wiegmann's Arch. 1851. 272. 



Habita cul um. Carassius vulgaris: in abdomine vario anni 

 tempore (Creplin et plur. alii, an et Pallas?). 

 Status evolutus: 



Ligula alternans Creplin: in Wiegmann's Arch. 1849. I. 69. 



Ligula digramma stat. evolut. — Syst. Helm. I. 581. Nr. 2 (cum synon.)* 



Habitaculum. Larus tridactylus (Hübner), L. parasiticus, ridi- 

 bundus et canus (Bremser), L. argentatus, Gryphiae (Schilling), Podi- 

 ceps auritus (Bloch et Hiibner), Colymbus articus et septentrionalis 

 (Mehlis), Mergus Merganser (Nitzsch), M. Serrator et albellus M. C. 

 V., Carbo Cormoranus (Creplin): cum piscibus depastis in intestina 

 translata, vario anni tempore M. C. V. 



Species inquirendae. 



3. Ligula crispa RUDOLPHI. — Syst. Helm. I. 583. 



4. Ligula nodosa RUDOLPHI. — Syst. Helm. I. 583. 



II. SCHISTOCEPHALUS CREPLIN. 



1. Schistocephalus diinorphus CREPLIN. — Syst. Helm. I, 584 

 adde: 



Status inevolutus: 



Bothriocephalus solidus Bellingham, in: Ann. of nat. hist. XIV. 254. 

 Schistocephalus dimorphus (statu ante evolutionem) Creplin: in Wieg- 

 mann's Arch. 1849. I, 67, 68, 69, 72. 



Habitaculum. Gasterosteus aculeatus : in cavo abdominis, in 

 Hibecnia (Allmann), Ardea stellaris (Creplin), Sterna Hirundo 

 (Schilling), Colymbus arcticus, C. septentrionalis, Podiceps crista- 

 tus, P. subcristatus, Mergus Serrator, Uria Troile (Creplin), Mergus 

 Merganser, Alca Torda (Schilling): in intestinis praesertim tenui- 

 bus; Colymbus septentrionalis; in proventriculo et ventriculo (Schil- 

 ling). 



Status evolutus: 



Bothriocephalus nodosus Bellingham in: Ann. of nat. hist. XIV, 255. 

 Schistocephalus dimorphus (stat. evolut.) Creplin: in Wiegmann's Arch. 



1849. I. 60, 67 et 69. — Blanchard, in: Annal. des sc. nat. 3. Ser. 



XL 121. 



