. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. STEPHENSON: AFRICAN OLIGOCHAETA 239 The prostates are tubular, not very long, irregularly bent; the duct is relatively short, very narrow, irregularly bent, quite sharply limited from the glandular part. The ovaries and funnels are in XIII, and ovisacs are present in XIV. The spermathecae (fig. 9) are composed, as before, of three parts: (I) the ampulla, elongated, spindle-shaped, joined by a rather narrow neck to the next, or (II) middle portion, opaquely white like the am- pulla, widening gradually towards its base;
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. STEPHENSON: AFRICAN OLIGOCHAETA 239 The prostates are tubular, not very long, irregularly bent; the duct is relatively short, very narrow, irregularly bent, quite sharply limited from the glandular part. The ovaries and funnels are in XIII, and ovisacs are present in XIV. The spermathecae (fig. 9) are composed, as before, of three parts: (I) the ampulla, elongated, spindle-shaped, joined by a rather narrow neck to the next, or (II) middle portion, opaquely white like the am- pulla, widening gradually towards its base; (III) the duct, shining,. a Fig. 9. Dichogaster rungweensis; a and b, spermathecae of two different specimens. muscular, as broad as the middle portion at its upper end, but narrow- ing somewhat as it passes towards the body-wall. The diverticulum is small, ovoid, shortly stalked, glistening, and dependent, and is attached to the middle portion at its lower end, where this merges into the duct. In a specimen from Madehani the spermathecae were shorter and rela- tively thicker, as if contracted (fig. 9 b).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harvard University. Museum of Comparative Zoology. Cambridge, Mass. : The Museum
Size: 816px × 3064px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorharvarduniversity, bookcentury1900, booksubjectzoology
