I went over again today and picked up a bargain Ariocarpus fissuratus.
I got this gem for $10...
![Image](http://www.cactiguide.com/forum/userpix/1079_A_fissuratus_1.jpg)
Here's a picture with a 5" steel rule. It's just a hair wider than 4" (10cm).
![Image](http://www.cactiguide.com/forum/userpix/1079_A_fissuratus_steel_rule_1.jpg)
I got this Echinocereus for $20. I'm not sure what it is, but it looks closest to E pseudopectinatus to me.
![Image](http://www.cactiguide.com/forum/userpix/1079_echinocereus_pectinatus_1.jpg)
Tim