618 



Dujardin (1845, pp. 586, 609, PI. IX, fig. H, 1-2) erroneously de-- 

 termined this worm as T. infundibuliformis; Moliu (1858, p. 139) 

 described it as T. cesticillus. Krabbe (1869, pp. 342-;J43) found 

 it in 16 out of 200 cliicltens in Denmark, and mentions a some- 

 what similar worm from Siebold's collection, taken in Egypt 

 by Bilharz. Plana (1882) records T. cesticillus in Italy and Pas- 

 quale (1890) says it is the most com^mon form at Massowah 

 (Abyssinia), where he in one instance took about 300 from one 

 chicken. Grassi & Rovelli (1892, p. 88) suspect that the inter- 

 mediate host is a lepidopteron (butterfly) or a coleopteron 

 (beetle), but this is wild speculation. Stossich (1890A, p. 39; 

 1890B, p. 53) records the same species in two different piiblica- 

 tions, once as being- collected in Venice by Ninni, and a second 

 time as being rather rare in chickens in Trieste. Blanchard 

 (1891B, p. 434) looks upon part of Megnin's T. infundibuliformis 

 as belonging here; the worm in question has, according to 

 Megnin (1881A, pp. 27-44) 3 rows of hooks on the suckers. 



For Neumann's (1888 and 1892) combination T. cesticillus var. 

 phasianorum which he attributes to Megnin (1887, p. 828), vide 

 p. 53 (Taenia infundibuliformis var. phasianorum Megnin, 1887, 

 p. 825 ff.. under T. Friedbergeri). 



22, DAVAINEA ECHINOBOTHRIDA (Megnin, 1881) R. Blanchard, 1891. 



(1880, Taenia infundibuliformis of Megnin (pars); 1880, T. 

 echinobothrida Megnin, nomen nudum; 1S81, T. echinoboth- 

 rida Megnin.) 



[PI. XVII, figs. 217-218.1 



Diagnosis: 50mm to 100mm long, 1mm to 4mm broad. Head 

 small, cuboid, its 'Summit presenting an infundibulum armed 

 with about 100 hooks, 8 fi long, arranged in a double row. 

 Suckers large, armed with 7 circular rows of hooks, the hooks 

 of the middle row being the largest; with age these hooks fall 

 and the suckers gradually become indistinct. Neck nil. An- 

 terior segments very thin, 50 times broader than thick; fol- 

 lowing segments increasing gradually in size, the posterior 

 border overlapping, so that the margin of the strobila appears 

 .^errate. Eggs spherical, 90 fi in diameter, arranged in groups 

 of 6-7 in roundish egg capsules. Development unknown. 



Hosts: Chickens (Megnin), ? pigeons (Megnin— possible 

 another species of worm according to Railliet), and ? pheas- 

 ants (see Blanchard). 



Geographical distribution: France by Megnin. Epidemics: 

 Megnin states that this did not produce any serious effect in its 

 hosts. 



