(»:{5 



eggs are soaUerc-d thimigli Ihn nicdliui ^l(J^Uon of the scgrrifiils. 

 Development: Unknown. 



Hosts: Tame duek (Anas boschas dom.); Brazilian teal (A. 

 brazlliensls); European teal (A. crecca); pintail (Daflla acuta); 

 white-headed duck (Erismatura leucocephala) ; tufted duck 

 (Aythya fuliffula); European scaup duck (A. mariln); African 

 teal (A. nyrocaj. 



The chief character for this worm is the large head, 

 but it seems exiremely doubtful wliether this should 

 he taken as the basis of a species. The parasite cer- 

 tainly can not be recognized wilh certainty from th(^ 

 present description, and should bo considered as a 

 doubtful species until some of the original specimens 

 can be resln(li(Ml. 



32. TAENIA NIGROPUNCTATA Crety. 1890. 

 I I'l. XX. figs. 26S-270. 1 



Diagnosis; Strobila to ]40nim jn length. Head small, 0.382mm 

 broad; (?) rostellum and hooks absent; suckers 0.1G6mm by 

 0.l37mni. Neck short, albout same breadth as head. Young- 

 segments rectangular, 0.5mm long by 1mm broad; older seg- 

 ments almost quadrangular, 2mm long by 1.5mm broad; mature 

 segments 2.5mm to 3mm long by ]mm broad. Genital pores ir- 

 regularly alternate, slightly posterior to the middle of the mar- 

 gin. Male genitalia: in posterior portion of segment, testicles 

 12 in numiber, diameter 58 /i. equally distributed at sides of the 

 uterus; vas deferens convoluted in its lateral portion and in- 

 flated to vesicula seminalis 0.176mm by 0.098mm within the cirrus 

 pouch; cirrus pouch pyriform, 0.313mm by 0.137mm. Female 

 genitalia: Ovary vitellogene gland, shell gland? At anterior 

 border of the segment a i*pot is observed in the median line; 

 from this a median stem runs distally and is divided near the 

 height of the pore into two portions; the posterior portion, at 

 least, represents the uterus. Ova 62 /J. with 3 shells; oncos- 

 phere 4« /i by 40 yn; hooks' 15 /i. 



Host: Migratory quail (Coturnix coturnix). 



33 TAENIA sp. Conard. MS. 

 Ll'l. XXI, liKS. 27.0-:i7li.| 



Mr. Henry S. Conard (Havei-ford College) has i-e- 

 cently studied some tapeworms from chickens, evi- 



