As always with these motifs, gauge is unimportant, as they can be made with any hook & yarn combo. Please let me know if you come across any obvious mistakes in the pattern, so that I can make corrections.
sport weight yarn in two colors (A & B in the pattern) You can, of course, use just one color yarn; I thought it looked more turtle-like with two different colors.
Note: Turning chain-2 counts as one HDC; turning chain-3 counts as one DC.
Note #2: As you crochet, the piece will naturally form a half-circle. This is what is supposed to happen.
Row 1: Sc 4 times in second chain from hook. 4 sc
Row 2: Ch 2 turn. HDC in same st. HDC twice in each remaining stitch. 8 hdc
Row 3: Ch 3, turn. DC in same st. (DC in 1 st, 2 DC in following st) across. 12 dc
Row 4: Ch 1, turn. Sc twice in first st. (Sc once in each of next 2 sts; sc twice in following st) across. 16 sc
Row 5: Ch 2, turn. HDC in same st. (HDC once in each of next 3 sts; HDC twice in following st) across. 20 hdc
Row 6: Ch 3, turn. DC in same st. (DC once in each of next 4 sts; DC twice in following st) across. 24 dc
Row 7: Ch 1, turn. Sc twice in first st. (Sc once in each of next 5 sts; Sc twice in following st) across to end. Do not finish off. Sc in side of row 7. Continue crocheting down the sides of hte rows, putting 1 sc in the sides of the sc rows & 2 sc in the sides of both HDC & DC rows, including 1 sc in the back of the starting chain. 24 sc along bottom (flat) edge.
Row 8: Change to color B. Sc in each st. 24 sc
Row 9: Ch 1, turn. Sc in first 8 sts. *Ch 4. Working in BACK of the chains, sc in 2nd ch from hook & rem. 3 chains.* Sc in next 9 sts. Repeat from * to * once again. Sc in last 7 sts.
Row 10: Ch 1, turn. Sc in each st, including the legs. At "top" of leg, ch 1 before continuing down the other side. DO NOT FINISH OFF 42 sts counting ch-1 at tops of legs
Row 11: Place 1 sc in the side of each of the 3 COLOR B rows. 3 sc
Rows 12 & 13: Ch 1, turn. Sc in each st. 3 sc
Row 14: Ch 1, turn. Sc twice in each st. Sc once in side of row 13 & sl st in side of row 12. 7 sc
Row 15: Ch 1, turn. Sl st in sl sts. Sc in each sc. 7 sc
Row 16: Ch 1, turn. Sl st in each st & in side of row 11. Finish off & weave in ends.