[672] Prof. Peck's Nat. Hist. of the Slug-worm, t. 12. f. 12-14. Plate [XV.] Fig. 21.
[673] Linn. Trans. iii. 23.
[674] Apis. **. c. 2. γ. K.
[676] See Kirby in Linn. Trans. v. 254. t. 12. f. 15.
[678] Bonnet, ix. 398.
[679] liii. 37. Pelopæus spirifex?
[680] Reaum. vi. 269.
[681] De Geer, iii. 262.