631 



but two species, O. proteus Fiiis, 1869 (Ryn. 1875, O. 

 Lacazii Villot), and O. insiguis Lonuberg, are described 

 from wild birds. 



( rnfundibulum divided into 5 parts; strobila 10mm 

 to 25mm long, with about 19 segments; hooks on 

 suckers arranged in three rows; found in 



I Tringa alpina, Charadrius hiaticula. Calidris 



1 arenaria. Larus canus. Liimosa rufa O. proteus. 



Infundibulum not divided, but its order undu- 



I lated;; strobila 50mm to lOOmm and more long; 



I found in Haematopus ostrealegus O. insiguis. 



GENUS INCERT. TAENIA S. L. 



.V iiiiiiiber of other tapeworins have been described 

 lioiii (li)iiiesticated fowls, but their generic position 

 run no! be determined with the data at hand. 



27. TAENIA CANTANIANA Polonio, 1S60 

 [PI. XX, fig. 256.1 



Polonio (18G0, pp. 21-22) describes a su])posed new 

 species of tapeworm as follows: 



1. T. Cantaniana PolonU). Caput globosum, centro unlwna- 

 tum; acetabulis cruciatim oppositis ob majorem capitis circu- 

 lum; collum nullum ;corpus retrorsum dilatatum, articulis 

 .^upreonis campanaeformitous, seiquentibus campanaeformlbus 

 imbricatis trapezoidalis; aperturae genitales marginales. Long, 

 0.013. 



Habitiaculum: Meleagris Gallopavo, in intestina, Octobri 

 Patavi (Polonio). 



In his second paper (1860, p. 221) this form is cited and is 

 figured on Taf. VII, 2 (vide PI.' XIX, fig. 256 of this paper). 

 The pores are evidently unilateral. Von L4nstow (1878, p. 122) 

 includes this among the parasites of the pheasant Phasianus 

 colchiciis, but does not give his authority. 



All subsequent remarks upon this species are based upon 

 Polonlo's statemlents. Blanchard ,!(189]|B pp. 4.39-440) thinks 

 this form may possibly belong to the genus Davainea, and 

 takes the following characters from Polonio's figure: 



Suckers large and round; the head seems to be surmounted 

 by a very short rostellum, probably retractile. The neck is 

 quite long, distinctly separated from the head. Segments num- 



