Dolphin penis might sound like the name of a dinner in a foreign country, but they are in fact insanely retractable monsters that grope fellow dolphins. The development of the phallus halts, leaving the opening of the urethra under instead of at the top of the penis. S too normal, then perhaps a tortoise penis will be amusing enough. Substantial glans penis which is divided into the bulbus glandis found proximally and the pars longa glandis found. The opening can be anywhere from the underside of the glans penis, down the ventral line as far as the top of the scrotum.