This article and/or image relates to the non-canon game, Pikmin: Attack of DeathSpike, created by LoganPikmin.
Snagmin are Snagrets that have been infected by the same parasitic Pikmin that made the Bulbmin. They are usually found in damp places and can only be used in caves. The parent will look like a regular Snagret except it basically swims in the ground with neck up and in a flowing kind of way. Once the mother is killed the other Snagmin will follow you. The most Snagmin that can be found in a squad is 20.
"It seems that the same parasitic Pikmin that infected the Bulbmin has now infected the Snavian family. I shall do further research on this fascinating creature."