. Text-fig. 28. Characteristic nectophores of a new Physonect Bargmannia elongata, the other parts of which are unknown. A, B, specimen 'Discovery II' St. 681, x 3-2; C, D, specimen from 'Discovery II' St. 699, 370-0 m., x6'3; E, F, specimen from 'Discovery II' St. 1769, 1000-750 m., x 3-5. The muscular lamella is attached along the pecked line in figs. E and F. Forskalia Kolliker, 18536 Very little advance has been made in our meagre knowledge of species of Forskalia since Bedot (1893), who was familiar with living Mediterranean forms, reviewed the genus. He recognized five species, three of
. Text-fig. 28. Characteristic nectophores of a new Physonect Bargmannia elongata, the other parts of which are unknown. A, B, specimen 'Discovery II' St. 681, x 3-2; C, D, specimen from 'Discovery II' St. 699, 370-0 m., x6'3; E, F, specimen from 'Discovery II' St. 1769, 1000-750 m., x 3-5. The muscular lamella is attached along the pecked line in figs. E and F. Forskalia Kolliker, 18536 Very little advance has been made in our meagre knowledge of species of Forskalia since Bedot (1893), who was familiar with living Mediterranean forms, reviewed the genus. He recognized five species, three of them Mediterranean ones. I am familiar with one living Mediterranean species, whose identification depends, as a field-mark, on a lemon-yellow coloured spot at the junction of the ventral radial and circular canals of the nectophores. This spot is not visible after fixation in formalin. Schneider (1898) maintained that this species should bear the name ophiura Delle Chiaje 1829. Bedot called it edzvardsii Kolliker, 18536. I have also often seen preserved nectophores of the leuckarti type, namely those with a small disc-shaped rete on the pedicular (apical) canal. Very little information has been given in descriptions about the shape and disposition of bracts, but I believe that bracteal characters will prove to have great systematic value. Leuckart (1854) gave the impression that, in F. contorta1, the bracts on the polyp-stalk are very numerous. In F. edwardsii I estimate that there are ten, including the small distal buds. We really know very little about the different species. That quantitative processes of change in animal tissues produce allometric growth-rates is well known. Child and others have done much classical work on the growth gradients in gymnoblast 1 Redescribed by Bedot (1893) as F. leuckarti.
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