Line Drawing 1
 Text-fig. 1. Anterior extremity, 'resting state'.
Text-fig. 2. Anterior extremity, contracted, showing 'papilla', folded margins of strobila and osmoregulatory system. Text-fig. 3. Anterior extremity... MoreText-fig. 1. Anterior extremity, 'resting state'.
Text-fig. 2. Anterior extremity, contracted, showing 'papilla', folded margins of strobila and osmoregulatory system. Text-fig. 3. Anterior extremity, contracted still further, showing greater folding of the lateral margins and the osmoregulatory canals. Text-fig. 4. Acompscocephalum tortum (Linton). One set of mature reproductive organs, dorsal view. Text-fig. 5. Sagittal section showing reproductive system. The two interruptions indicate that the ventral uterine pore is not in line with the dorsal genital atrium. |
Line Drawing 2
 Test-fig. 6. Early genital region showing osmoregulatory canals, two sets of developing reproductive organs and absence of segmentation. Text-fig. 7. Transverse section near anterior extremity showing... MoreTest-fig. 6. Early genital region showing osmoregulatory canals, two sets of developing reproductive organs and absence of segmentation. Text-fig. 7. Transverse section near anterior extremity showing lateral cerebral ganglion, ring commissures and origin of accessory lateral nerves. Text-fig. 8. Transverse section close behind the previous showing transverse commissure and network of the osmoregulatory system. Text-fig. 9. Sagittal section showing fanning of longitudinal muscles, part of the two accessory lateral nerves of one side and main lateral nerve cord, osmoregulatory system and apical processes. Text-fig. 10. Reconstruction of nervous system at anterior extremity and longitudinal muscles forming a ring before they fan out towards the surface. |
Photo Micrograph
 Plate 1. Fig. 1. Preserved specimen showing spiral movements, spiral more marked anteriorly, frilled margins more marked posteriorly. Anterior papilla and absence of segmentation. Fig. 2. Same specime... MorePlate 1. Fig. 1. Preserved specimen showing spiral movements, spiral more marked anteriorly, frilled margins more marked posteriorly. Anterior papilla and absence of segmentation. Fig. 2. Same specimen as previous, stained and mounted, showing repetition of reproductive organs, pregenital, early genital and mature regions. |
Scanning Electron Micrograph
|