1970's sci-fi book about alien invasion where the survivors were on a moon of Jupiter's and called themselves the JLC or the Jovian Lunar Confederacy, Jelks for short. These people survived an alien invasion that decimated the Solar System. As the system recovered, mankind had become very different from the original look. Survivors on all planets had mutated or bred for specific looks. The survivors on the Jovian Moons had modified their bodies due to reduced resources and had become 3 feet tall, hairless with big eyes (I know what this sounds like). Now, I think a computer said they needed to track down and destroy the aliens that had attacked them, but they needed to create a breeding program to make the ultimate human who can take down the aliens. One of the participants was a female Jelk who crossbred with a pirate type man and had a daughter who was raised by a high ranking official the daughter called him Kofi. I hope this jogs someone's memory as I would like to read it again. Thank you.

I'm trying to identify a 1970s sci-fi book about alien invasion where the survivors were on a moon of Jupiter and called themselves the JLC or the Jovian Lunar Confederacy, Jelks for short. These people survived an alien invasion that decimated the Solar System.

As the system recovered, mankind had become very different from the original look. Survivors on all planets had mutated or bred for specific looks. The survivors on the Jovian Moons had modified their bodies due to reduced resources and had become 3 feet tall, hairless with big eyes (I know what this sounds like).

Now, I think a computer said they needed to track down and destroy the aliens that had attacked them, but they needed to create a breeding program to make the ultimate human who could take down the aliens. One of the participants was a female Jelk who crossbred with a pirate-type man and had a daughter who was raised by a high-ranking official the daughter called him Kofi. I hope this jogs someone's memory as I would like to read it again.