P. cuulong is probably the most not too long ago found species of twenty-two recognized priapiumfish, a household whose males have changed their penises with muscular priapia, fashioned from the modified bones of the pectoral and pelvic fins. Along with an anal opening and a genital pore, the priapium features a rod and a serrated hook for grabbing a feminine’s head to maintain her throat, and its oviduct opening, near the genital pore. A agency grip lets the priapium fertilize the feminine internally with out dropping too many sperm. Though it sounds uncomfortable, this mating technique is definitely very efficient: Researchers have discovered feminine priapiumfish with full oviducts, making certain that almost all of their eggs get fertilized. Provides a complete new which means to the time period “necking,” doesn’t it?