1. Editorial

   EditorialNotes Pages: 1 - 1

2. Physiological color change in squid iridophores

   • Roger T. Hanlon
   • Kay M. Cooper
   • Todd C. Pappas

   OriginalPaper Pages: 3 - 14

3. Physiological color change in squid iridophores

   • Kay M. Cooper
   • Roger T. Hanlon
   • Bernd U. Budelmann

   OriginalPaper Pages: 15 - 24

4. Differentiation of mast cells during postnatal development of neonatally estrogen-treated rats

   • Francisco Gaytan
   • Carmen Bellido
   • Enrique Aguilar

   OriginalPaper Pages: 25 - 31

5. Fine structural and volumetric changes of lamprey photoreceptor cells during light and dark periods

   • Masahiro Hara
   • Mika Yoshida
   • Akira Tonosaki

   OriginalPaper Pages: 33 - 41

6. Immunohistochemical localization of 14 kDa β-galactoside-binding lectin in various organs of rat

   • Kojiro Wasano
   • Yasuhiro Hirakawa
   • Torao Yamamoto

   OriginalPaper Pages: 43 - 49

7. Mechanical sensitivity and cell coupling in the ciliated epithelial cells ofMytilus edulis gill

   • M. J. Good
   • E. W. Stommel
   • R. E. Stephens

   OriginalPaper Pages: 51 - 60

8. The septate junction limits mobility of lipophilic markers in plasma membranes ofHydra vulgaris (attenuata)

   • Richard L. Wood

   OriginalPaper Pages: 61 - 66

9. Immunohistochemical colocalization of glucagon, serotonin, and aromatic L-amino acid decarboxylase in islet A cells of chicken pancreas

   • Tohru Watanabe
   • Tomoko Morikami
   • Ikuko Nagatsu

   OriginalPaper Pages: 67 - 72

10. Localization of growth hormone-releasing factor-like immunoreactivity in the hypothalamo-hypophysial system of some teleost species

    • M. Olivereau
    • J. Olivereau
    • F. Vandesande

    OriginalPaper Pages: 73 - 80

11. Monoamines in the nervous system of the tube-wormChaetopterus variopedatus (Polychaeta): Biochemical detection and serotonin immunoreactivity

    • M. Anctil
    • J. -P. De Waele
    • A. K. Pani

    OriginalPaper Pages: 81 - 92

12. The development of the sensory organs of the legs in the blowfly,Phormia regina

    • Reinhard Lakes
    • Gerald S. Pollack

    OriginalPaper Pages: 93 - 103

13. Distribution of catecholamine-containing, serotonin-like and neuropeptide FMRFamide-like immunoreactive neurons and processes in the nervous system of the actinotroch larva ofPhoronis muelleri (Phoronida)

    • Anders Hay-Schmidt

    OriginalPaper Pages: 105 - 118

14. Neuropeptide Y: presence in sympathetic and parasympathetic innervation of the nasal mucosa

    • J. S. Lacroix
    • A. Änggård
    • J. M. Lundberg

    OriginalPaper Pages: 119 - 128

15. Visualisation of specific binding sites for atrial natriuretic peptide on non-neuronal cells of cultured rat sympathetic ganglia

    • S. James
    • C. J. S. Hassall
    • G. Burnstock

    OriginalPaper Pages: 129 - 137

16. Innervation of the anococcygeus muscle of the rat

    • William G. Dail
    • Ysela Carrillo
    • Guy Walton

    OriginalPaper Pages: 139 - 146

17. Distribution and functional significance of Met-enkephalin-Arg⁶-Phe⁷-and Met-enkephalin-Arg⁶-Gly⁷-Leu⁸-like peptides in the blowflyCalliphora vomitoria

    • Hanne Duve
    • Alan Thorpe

    OriginalPaper Pages: 147 - 157

18. Metamorphic changes in the central projects of hair sensilla inTenebrio molitor L. (Insecta: Coleoptera)

    • Olaf Breidbach

    OriginalPaper Pages: 159 - 175

19. Occurrence of bombesin-like immunoreactivity in the brain of the cartilaginous fish,Scyliorhinus canicula

    • Mauro Vallarino
    • Loredana D'Este
    • Tindaro Renda

    OriginalPaper Pages: 177 - 181

20. Immunocytochemical study of the endocrine pancreas in the grey kangaroo (Macropus fuliginosus)

    • Nalini Edwin
    • Chris M. Leigh

    Short Communication Pages: 183 - 185