Enteroendocrine cells in the digestive tract of Barbus conchonius (teleostei, cyprinidae) J. H. W. M. Rombout OriginalPaper Pages: 435 - 450
A comparative study of physiological and structural changes at the myoneural junction in two species of frog after transection of the motor nerve Vinod VermaMonique Pécot-Dechavassine OriginalPaper Pages: 451 - 464
Distribution, ontogeny and ultrastructure of somatostatin immunoreactive cells in the pancreas and gut J. AlumetsF. SundlerR. Håkanson OriginalPaper Pages: 465 - 479
Ultrastructure of juvenile hormone-induced degenerating flight muscles in a bark beetle, Ips paraconfusus G. C. UnnithanK. K. Nair OriginalPaper Pages: 481 - 490
Neuronal and synaptic organization in the gravity receptor system of the statocyst of Octopus vulgaris W. F. Colmers OriginalPaper Pages: 491 - 503
Influence of changes in composition of the cerebrospinal fluid on the secretory activity of the subcommissural organ in Rana esculenta J. HessJ. H. B. DiederenH. G. B. Vullings OriginalPaper Pages: 505 - 514
The retina-lamina projection in the crab Leptograpsus variegatus Sally Stowe OriginalPaper Pages: 515 - 525
Freeze fracture studies on the annelid septate junction Ulrich WelschWolfgang Buchheim OriginalPaper Pages: 527 - 534
“Sunbursts” and “christiesomes”: Cellular fragments in normal cow and goat milk F. B. P. WoodingG. MorganH. Craig OriginalPaper Pages: 535 - 545
Fine structure of the drum muscles of the piranha (serrasalminae, characidae) Helga Eichelberg OriginalPaper Pages: 547 - 555
Ultrastructural appearance of neurosecretory granules in the sinus gland of the crab after different fixation procedures Jean J. Nordmann OriginalPaper Pages: 557 - 563