. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. STEPHENSON: AFRICAN OLIGOCHAETA 233 The spermathecae (fig. 5) consist each of three parts: (I) a sac-like thin-walled ampulla, separated by a constriction from (II) a middle portion, bulkier and more opaque than the ampulla and apparently with thicker walls, rounded, broader than long; (III) the duct, shining and muscular, as long as the middle portion, broadest above, narrowing gently towards its exit. The diverticulum is single, ovoid or almost spherical, shortly stalked, attached to the base of the middle portion a
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. STEPHENSON: AFRICAN OLIGOCHAETA 233 The spermathecae (fig. 5) consist each of three parts: (I) a sac-like thin-walled ampulla, separated by a constriction from (II) a middle portion, bulkier and more opaque than the ampulla and apparently with thicker walls, rounded, broader than long; (III) the duct, shining and muscular, as long as the middle portion, broadest above, narrowing gently towards its exit. The diverticulum is single, ovoid or almost spherical, shortly stalked, attached to the base of the middle portion and dependent by the ( side of the duct. The penial setae (fig. 6) are one per bundle, mm. long, and 15^ in diameter at the middle of the shaft. The shaft is very slightly bowed, the proximal end bent through the quadrant of a circle, somewhat like a hockey club; the tip is bluntly pointed and slightly hooked; there may be a few very faint undula- tions on the distal third or half of the shaft, which however may be almost indistinguish- able. The ornamentation consists of a few in- cisures — they can hardly be called teeth —on the terminal mm. of the shaft, which cause a faint indenta- tion of the margin of the shaft (the convex mar- gin) as seen in 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
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Keywords: ., bookauthorharvarduniversity, bookcentury1900, booksubjectzoology
