. Annals of tropical medicine and parasitology. Parasites. 360 Internal Anatomy Owing to lack of material the nervous, muscular, and excretory systems were not investigated. Genitalia. Testes. There are 6 or 7 testes and they first appear in about Segment IV. When fully mature they measure about 70/*. Usually there are four situated aporally, one or two posterior to the ovary, and a single testis on the pore side, posterior to the internal extremity of the cirrus. Vas deferens. The cirrus pouch when fully developed extends half-way across the segment ; in 2 or 3 cases it extends a little more
. Annals of tropical medicine and parasitology. Parasites. 360 Internal Anatomy Owing to lack of material the nervous, muscular, and excretory systems were not investigated. Genitalia. Testes. There are 6 or 7 testes and they first appear in about Segment IV. When fully mature they measure about 70/*. Usually there are four situated aporally, one or two posterior to the ovary, and a single testis on the pore side, posterior to the internal extremity of the cirrus. Vas deferens. The cirrus pouch when fully developed extends half-way across the segment ; in 2 or 3 cases it extends a little more than half-way across. It has \'ery thick (? muscular) walls. In Segment XVII it measures 250/; long and iio/( broad. The cirrus is peculiar in being. Fig. I. Davaiiiea tragopani, Ripe segments, mounted whole, showing genitalia, -cirrus; —cirrus pouch ; o.—ovary ; (.—testes; v.— ; —vas deferens ; -receptaculum seminis. x 210. —vitelline gland ; a greatly dilated organ densely covered with minute spines, and almost filling the cirrus pouch. The cirrus pouch persists to the last segment. The vas deferens is short and very slightly coiled. No seminal vesicle was observed (fig. i). The genital pores are unilateral and are situated a little anterior to the middle point of the lateral margin of each 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 Liverpool School of Tropical Medicine. Liverpool University Press [etc. ]
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectparasites, bookyear19
