. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. appearance that they present towards their termi- nation appear in some species to perform likewise the office Fig. 315. of reservoirs fo the seminal fluid. In a large African species Mr. Newport found the double organ of intromission to be prehensile (jig. 314, B, a), each part having the form of a distinct claw between the move- able joints, of which passes out the elongated half corneous penis. These parts are co- vered in anteriorly by a horny valve somewhat of a trian- gular form, and the whole oc- cupies an oval sp
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. appearance that they present towards their termi- nation appear in some species to perform likewise the office Fig. 315. of reservoirs fo the seminal fluid. In a large African species Mr. Newport found the double organ of intromission to be prehensile (jig. 314, B, a), each part having the form of a distinct claw between the move- able joints, of which passes out the elongated half corneous penis. These parts are co- vered in anteriorly by a horny valve somewhat of a trian- gular form, and the whole oc- cupies an oval space on the under surface of the seventh segment, corresponding to that usually occupied by the legs. " With regard to the product of secretion in these organs," ob- serves Mr. Newport,* " I have never yet found any thing but a granulous fluid in the cceca, apparently similar to the gra- nules in the higher animals from which Spermatozoa are produced, but this might have arisen from the immature re- cent specimens I was alone able to obtain. It would be interesting to ascertain whether these germs of Spermatozoa are produced in the cceca as there seems reason to believe, as we shall presently find that the ova in the female are secreted in sacs which appear to be ana- logous to these cceca in the male organs. I am inclined to think that the Spermatozoa are not developed until the granu- lous fluid has passed into the efferential ducts at the season of ; The female organs of the JididtE (jig. 315) are described with equal minuteness in the paper above referred to, from which we extract the following exceedingly valuable observa- tions, as nearly as possible in the words of Mr. Newport him- self, to whom we are also in- debted for the illustrative fi- gures. In the female Julus, the organs of reproduction are as simple as those of the male. They consist of a single elon- gated bag or oviduct, covered on its exterior surface with a very great numbe
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