. The crayfish; an introduction to the study of zoology. Crayfish; Zoology. THE KEXAL ORGAN. 83 excrement of birds), a nitrogenous body analogous in some respects to uric acid, but less liigiily oxidated; Fig. 18.—Astacm JiuviatiUs.—A, the anterior part of the body, with the dorsal portion of the carapace removed to show the position of the g-reen glands ; B, the same, with the left side of the carapace removed ; C, the green gland removed from the body (all x 2). ag, left anterior gastric muscle ; <?, circumoesophageal commis- sures ; <?.?, cardiac portion of stomach ; gg. green gl
. The crayfish; an introduction to the study of zoology. Crayfish; Zoology. THE KEXAL ORGAN. 83 excrement of birds), a nitrogenous body analogous in some respects to uric acid, but less liigiily oxidated; Fig. 18.—Astacm JiuviatiUs.—A, the anterior part of the body, with the dorsal portion of the carapace removed to show the position of the g-reen glands ; B, the same, with the left side of the carapace removed ; C, the green gland removed from the body (all x 2). ag, left anterior gastric muscle ; <?, circumoesophageal commis- sures ; <?.?, cardiac portion of stomach ; gg. green gland, exposed in A on the left side by the removal of its sac ; ima, inter- maxillary or cephalic apodeme ; oes, oesophagus seen in transverse section in A, the stomach being removed ; s, sac of green gland ; a*, bristle passed from the aperture in the basal joint of the antenna into the sac. and if this be the case, there can be little doubt that the green gland represents the kidnej^, and its secretion. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Huxley, Thomas Henry, 1825-1895. New York, D. Appleton and company
Size: 1802px × 1386px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorhu, bookcentury1800, bookdecade1880, booksubjectzoology
