Humboldt, A. von and Wiegmann, A. F. A Search this
Type:
Citations
Date:
1838
Notes:
Detailed account of its external characters, with measurements, of the mouth parts, and some account of its digestive tract, food, and habits. Pl. i gives views of the animal in profile and from below; pl. ii, of the mouth, of the head from above and in profile, and an ideal longitudinal section of the body.