It should be noted that the horny pieces of the carapace are termed "shields" and the bony pieces "plates."

[129]

πλευρόν, side; δειρή, neck.

[130]

Journ. Morph. xv. 1897, p. 21.

[131]

Amer. Natural. xxxii. 1898, p. 929.

[132]

Contributions to the Nat. Hist. of the U.S.A., Boston, 1857.

[133]