File:Text-book of comparative anatomy (1898) (14593272908).jpg

Identifier: textbookofcompar01lang (find matches)
Title: Text-book of comparative anatomy
Year: 1898 (1890s)
Authors: Lang, Arnold, 1855-1914 Bernard, Henry Meyners Bernard, Matilda Haeckel, Ernst Heinrich Philipp August, 1834-1919
Subjects: Anatomy, Comparative
Publisher: London, New York, Macmillan and Co.
Contributing Library: MBLWHOI Library
Digitizing Sponsor: MBLWHOI Library

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OMY CHAP. are on each side two testicle tubes connected together by anastomoses. These twotubes unite anteriorly to form a sperm duct, which, joining the duct from the otherside, opens outwardly at the place where, in the female, the genital aperture lies.Paired accessory organs are connected with the ducts, viz. copulatory organs, seminalvesicles, and glands. Pseudoscorpionidae. —The ovary is an unpaired tube beset with follicles, which iscontinued into two oviducts entering a short vagina. Numerous unicellular, and 2long tangled tubular glands are connected with the vagina. The testes in Cherncs and Obisium recall in their form the ovaries of the Scor-2rionidce. In Chelifer, on the contrary, we find a single median testicle tube. There areeverywhere 2 sperm ducts, entering a common copulatory apparatus, with which areconnected glands similar to those in the female. The unpaired genital aperture liesventrally in both sexes on the boundaries between the 2d and 3d abdominal segments.
Text Appearing After Image:
FIG. 376.—Male sexual apparatus of various Arachnoidea. Most of the figures are somewhatdiagrammatic. A, Scorpio occitanus (after Blanchard). B, Galeodes barbarus. (., Galeodesnigripalpis (after Dufour). D, Philoica domestica (Araneid) (after Bertkau). E, Pentastomataenioides, only the anterior end of the testes drawn (after Leuckart). F, Uropoda (Acarid) (afterWinkler). (!, Trombidium fuliginosum (Acarid) (after Henking). H, Phalangium opilio (afterKrohn). /, Gamasus crassipes (Acarid) (after Winkler). The letters in all cases signify : t, testes(dotted); vd, vasa deferentia ; sb, seminal vesicle; j), penis; a, glandular appendages ; as, tubularappendages ; ab, vesicular appendages ; be, bursa expulsatoria ; c, cirrus ; cb, cirrus pouch. Solpugidse.—The female sexual apparatus (Fig. 375, B) consists of 2 long ovarialtubes beset at their outer edges with numerous ovarian follicles, and placed in theabdomen. From each ovary there arises an oviduct. The 2 oviducts unite, theirends s

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