982 GENERATIVE APPARATUS. 



are yellow in colour, and are formed — like the preceding — of acini, the cells of which contun 

 much fat. Because of their situation, we have named these the rectal glands. 



We have also studied tlie generative organs of the Leporide — a new or hybrid species 

 which has been the subject of much discussion ; and have remarked that there is a perfect 

 resemblance between these organs in a male Leporide and those of the Rabbit. The testicles 

 found in the abdomen have furnished a fluid rich in very vivacious spermatozoids. These 

 Leporides have, therefore, all that is necessary for reproduction inter se.' 



Comparison of the Genital Organs of Man with those op Animals. 



Coverings of the testicles. — The scrotum, dartos, tunica erythryoidea,&nd tunica vaginalis have 

 the sume organization as in Solipeds. The scrotum is rich in sebaceous glands, and the tunica 

 vaginalis is separated by a serous layer from the peritoneal cavity. 



Testicles. — These are ovoid, and situated in an oblique direction downwards and inwards ; 

 their largest curvature is forwards. 



The epididymis ofl'ers the same arrangement as already noticed, except that the vm 



Fig. 528. 



16 



SECTION OF PELVIS TO THE LEFT OF THE MEDIAN LINE AT THE PUBES, AND THROUGH 

 THE MIDDLE OF THE SACRUM. 



1, Section of left pubic bone; 2, peritoneum on bladder; 3, left crus penis; 4, pelvic fascia 

 forming anterior ligaments of bladder ; 5, part of accelerator urina; ; 6, posterior layer of 

 triangular ligament forming the capsule of the prostate ; 7, anterior layer of triangular 

 ligament; between 6 and 7 are seen the membranous urethra, deep muscles of urethra (insertion), 

 and Cowper's gland of the left side; 8, vas deferens; 9, bulb of urethra; 10, rectum; 11, cut 

 edges of accelerator urinse and transversus perinaei ; 12, left ureter; 13, reflection of deep layer 

 of superficial fascia round transversus perinaei ; 14, left vesicula seminalis ; 15, cut edge of 

 levator ani ; 16, rectum ; 17, prostate gland. 



deferens, in being detached from the globus minor, is bent somewhat suddenly to reach the 

 abdominal cavity. There are several diverticuli annexed to the epididymis, named the pedicu- 

 lated hydatid of Morgagni, non-pediculated hydatid aberrant vessels, and corpus innominatum of 

 Giraldes. 



The hydatid of Morgagni is a little projection at the head of the epididymis, filled with a 

 serous fluid which is never mixed with the semen. The non-pedicidated hydatid is a small 

 white mass which rises from the testicle at some distance from the globus major ; it has a 

 cavity that communicates witli the duct of the epididymis. The aberrant vessels are fine 

 flexuous ducts given off" from the globus minor, and soon terminate in a cul-de-sac. The corpus 

 innominatum of Giraldes is a small mass of ramifying tubes included in the connective tissue 

 uniting the globus majnr to the testicle. All these anpendages of the testicle or epididymis, 

 are the remains of the Wolffian body. 



For further details, see Arloing, " Etude Comparative sur les organes genitaux du Lifevre^ 

 du Lapin et du Leporide," in Robin's Journal de I'Anatomieet de la Physiologie for 1868. 



