Inner sac of penis (endophallus)

• Procedure of preparation of dry exserted inner sac of penis for permanent storage
• Inner sac of penis (endophallus) of related species of the genus Carabus (drawings of Oleg Berlov)
• Inner sac of penis (endophallus) and bursa copulatrix of the ground beetle massagetus (drawings of Oleg Berlov)
• Preparati permanenti a secco dell'endofallo nel genere Carabus L.