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Show 1870.] PROF. W. H. FLOWER ON MLURUS FULGENS. 765 ~ inch between them ; they are placed rather nearer to the orifice of the prepuce than to the anus. Fig. 9. Side view of pelvic viscera; three-fourths the natural size. t. Testicle, vd. Vas deferens, ub. Urinary bladder, u. Ureter, r. Rectum. ep. Erector penis muscle, rp. Retractor penis, la. Levator ani. g. Anal gland. The middle of the perineum is more scantily clothed with hair than the rest of the under surface of the body. There is a distinct muscular sphincter beneath the skin around the orifice of the prepuce. The penis is rather small, being 2" in length from the junction of the crura to the end of the glans. The latter, when in the non-erect condition, appears to consist (as in the allied genera) of little more than the bone, covered by a delicate lax integument. The orifice of the urethra is rather large, and has a prolonged bilobed inferior lip. The os penis (fig. 10) is *9" long, curved, with the convexity downwards or towards the urethra, slender but thicker behind than in |