A modification to a different shell pattern (Lion Brand Yarn's Scallop Shell) to create the lower, more convex shell of a brachiopod. Entered here to check short row counts. I haven't test knit yet.
Shown with a cast-on count of 0 stitches.
1 2 3 4 5 Horizontal repeats
1 2 3 4 5 Vertical repeats