The annals and magazine of natural history : zoology, botany, and geology . ear its anterior end (seefig. 3, F.). 462 Mr. H. A. Baylis on new The genital pore-; are irregularly alternating. The cirrus-sac is pear-shaped and measures 0*125 nun. long and 004 thickness at its widest part, which is near the inner end. There are twelve or more testes in a compact group in themiddle of the segment. The female genital apparatus callsfor no special comment: the uterus (tig. 3, Ut.) shows theusual more or less complete division into two lateral portions,and a well-developed paruterine organ (fig.
The annals and magazine of natural history : zoology, botany, and geology . ear its anterior end (seefig. 3, F.). 462 Mr. H. A. Baylis on new The genital pore-; are irregularly alternating. The cirrus-sac is pear-shaped and measures 0*125 nun. long and 004 thickness at its widest part, which is near the inner end. There are twelve or more testes in a compact group in themiddle of the segment. The female genital apparatus callsfor no special comment: the uterus (tig. 3, Ut.) shows theusual more or less complete division into two lateral portions,and a well-developed paruterine organ (fig. 3, P.) is presentin front of it in the posterior segments. The ova do notappear to pass into the paruterine organ until after theseparation of the segments from the strobila. The oncho-spheres measure 28 fju in diameter. 5. Davainea debilis, sp. n. Host: Anastomus lamellijerus. (Open-bill Stork.)Of this species the collection contains only one specimen,which measures about 45 mm. in lengtli. The posteriorsegments are much contra-jted, and the length actually Fi<r. Davainea debilis ; diagram of th-e genital cloaca and terminal portions ofthe genital ductd. (Reconstructed from horizontal sections.) Theoverlapping lateral borders of three consecutive segments are seen. C, cirrus; , distal non-muscular portion of genital cloaca; ,proximal muscular portion of same ; , cirrus-sac; F., vagina;^ vas deferens. attained would probably be much greater. Anteriorly theworm is extremely slender, but it increases rapidly in widthuntil the posterior segments measure about 3 mm. across. The scolex measures only 0*2 mm. across and is veryfeebly developed. The suckers appear as mere cushion-likethickenings. They were apparently armed with hooks about Entozoa from Birds in Uyanda. 403 12 ^ ^^igj Hiarly nil oE which, however, have been lost. Therostelliim inoasureB 008 iiiiii. in (Jiuiuetor and anenormous miinl)or of extroincly miiuite hooks, the lenj^th ofwhiili is a
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Keywords: ., bookcentury1800, bookidser9annalsmaga, booksubjectnaturalhistory
