The ultrastructure of the spermatozoon of the hoplonemertine, Emplectonema neesii P. J. Whitfield OriginalPaper Pages: 303 - 316
Ultrastructural observations on possible sites of steroid biosynthesis in the ovarian follicular epithelium of two species of cichlid fish, Cichlasoma nigrofasciatum and Haplochromis multicolor T. J. NichollsG. Maple OriginalPaper Pages: 317 - 355
Scanning electron microscopy of olfactory rosette in sea trout Gunnar Bertmar OriginalPaper Pages: 336 - 346
Influence des variations expérimentales de la calcémie sur la morphologie fine des cellules C du rat et du poulet Marie-Elisabeth StoeckelAimé Porte OriginalPaper Pages: 347 - 365
La structure fine des caecums rectaux de deux Asteriidae: Marthasterias glacialis (L) et Coscinasterias tenuispina (Lam) (Echinodermata, Asteroidea) Michel Jangoux OriginalPaper Pages: 366 - 384
Etude histophysiologique des modifications spléniques an cours de l'hibernation du lérot (Eliomys quercinus L.) G. Rzeszowska-TokarskaC. BurletE. Legait OriginalPaper Pages: 385 - 392
Interrelationships between polyamines and nucleic acids Helmut A. FischerJ. Michael SchröderNikolaus Seiler OriginalPaper Pages: 393 - 405
Monoamines in rat thyroid parafollicular cells and the effect of vitamin D2-induced degranulation Annica DahlströmLars E. Ericson OriginalPaper Pages: 406 - 425
Ultrastructure de la glande de la spermathèque chez Phosphuga atrata L. (Coleoptera Silphidae) Jean-Pierre Suzzoni OriginalPaper Pages: 426 - 437
Ultrastructural studies of oogenesis in some European amphibians Annetrudi KressUdo M. Spornitz OriginalPaper Pages: 438 - 456