DELLA CROCE, N. Dr.Nat.Sci., Prof. - 1st. di Zool., Univ. di Genova, Via Balbi 5, 16126 



GENOVA, Italy 

 a Embryonic development of a parthenogenetic marine form. Penilia avirostris (Cladocera, Crusta- 

 cea) (with S. BETTANIN) 

 b Growth of the embryo. Penilia avirostris (Cladocera, Crustacea) (with S. BETTANIN) 

 c Formation of resting eggs. Same species as b (with S. BETTANIN) 

 DELMAS, A. Prof. - Lab. d'Anat., Univ. Paris V - Rene Descartes, 45 rue des Saints Peres, 75 



PARIS Vie, France 

 DE LUCA, V. M.D., Prof. - 1st. di Zool., Univ. di Catania, Via Androne 81, 95124 CATANIA, Italy 

 DE MAERE (HERTOGS), Mrs. E. M.D. - Lab. of Anat. and Embryol., State Univ. Center, 



Groenenborgerlaan 171, 2020 ANTWERPEN, Belgium 

 a Scanning and transmission electron microscopy of early development. Gallus domesticus, Cotur- 



nix c. japonica (Aves) 

 DE MAEYER (CRIEL), Mrs. G. Dr.Sc. - Lab. of Anat., Univ. of Gent, Ledeganckstr. 35, 9000 



GENT, Belgium 

 a Ultrastructure of shell glands and egg shells. Artemia salina (Anostraca, Crustacea) 

 b Cytology and cytochemistry of the female reproductive tract. Same species as a 

 DE MATTHAEIS, Miss E. Dr.biol.Sci. - 1st. di Zool. 'Federico Raffaele', Viale dell'Universita 32, 



00161 ROMA (7), Italy 

 a Biochemical events in polyspermic eggs. Paracentrotus lividus (Echinoidea) (with H. MANELLI 



and U. FERRINI) 

 b Nuclear protein changes during spermatogenesis. Same species as a (with A. NICOTRA) 

 DENIS, H. A. Dr.es Sci. - Lab. de Biochim., Univ. de Liege, 17 Place Delcour, B-4000 LIEGE, 



Belgium % ISDB 



a Mechanismes biochimiques de l'oogenese. Xenopus laevis (Anura) 

 DENKER, H. W. Dr.rer.nat., Dr.med. - Arbeitsgr. Prof. G. H. M. Gottschewski am Max-Planck-Inst. 



fur Immunbiol., Stefan-Meier-Str. 8, 78 FREIBURG i.Br., B.R.D. (Germany) 

 a Histochemistry of acid muco-substances and enzymes in early stages (fertilization up to implanta- 

 tion). Oryctolagus cuniculus (Lagomorpha), Mus musculus, Rattus norvegicus, Mesocricetus 



auratus, Cavia porcellus (Rodentia) 

 b Development and check of enzymes in early stages. (Lagomorpha; Rodentia) 

 DENNE, M. P. Ph.D. - Dept. of Forest, and Wood Sci., Univ. Coll. of North Wales, BANGOR, 



Caerns., Wales, U.K. 

 a Environmental control of xylem development. Pinus sylvestris, Picea sitchensis (Gymnospermae) 

 DENUCfi, J. M. Dr., Prof. - Dept. of Zool., Cathol. Univ., Toernooiveld, NIJMEGEN, Netherlands 

 a Morphology, physiology, and biochemistry of the hatching glands. Oryzias latipes, Brachydanio 



rerio (Teleostei), Xenopus laevis (Anura) 

 b Changes in protein pattern during development. Ephydatia fluviatilis (Porifera), Bombyx mori 



(Lepidoptera), Oryzias latipes, Brachydanio rerio (Teleostei) 

 DEOL, M. S. Ph.D. - Dept. of Anim. Genet., Univ. Coll. London, Gower St., LONDON WC1E 6BT, 



England 

 a Developmental genetics of mutants with abnormalities of the inner ear. Mus musculus 



(Rodentia) 

 b Developmental genetics of mutants with abnormalities of pigmentation. Mus musculus 



(Rodentia) 

 c Mosaicism. Mus musculus (Rodentia) 

 DEPARIS, P. Dr.Biol. - Lab. de Biol. Gen., Univ. Paul-Sabatier, 118 Rte de Narbonne, 31077 



TOULOUSE Cedex, France 

 a Hematopoiesis. (Urodela) 



b Tissue transplantation. Pleurodeles waltlii (Urodela) 

 DEPECHE, J. - Lab. de Biol, de la Reprod., Univ. de Paris VI, B.P.261, 75827 PARIS-Cedex 17, 



France 

 a Viviparity and developmental biology. Poecilia reticulata (Teleostei) 

 DE PETROCELLIS, Miss B. Ph.D. - Lab. of Molec. Embryol., Consiglio Naz. delle Ricerche, Via 



Toiano 2, 80072 ARCO FELICE (Napoli), Italy ISDB 



a Enzymes controlling DNA synthesis in developing embryos. Paracentrotus lividus (Echinoidea) 

 DERAY, A. Lic.es Sci., Doct. 3e Cycle - Lab. de Zool., Univ. de Besangon, Place Marechal Leclerc, 



25030 BESANCON, France 

 a Differenciation sexuelle des hybrides et des individus des especes parentes. (Aves) (avec 



L. GOMOT) 

 DERKSEN, J. Drs. - Dept. of Genet., Univ. of Nijmegen, Toernooiveld, NIJMEGEN, Netherlands 

 a Biochemistry and ultrastructure of specific nuclear ribonucleoprotein fractions. Drosophila hydei 



(Diptera) 

 DEROM, R. M. J. M.D., Ph.D. - Dept. of Obstet. and Gynecol., Univ. of Ghent, Aan de Bocht 6, 



GENT, Belgium 

 DE SILVA, K. H. G. M. B.Sc. - Inst, of Anim. Genet., Univ. of Edinburgh, West Mains Rd., 



EDINBURGH EH9 3JN, Scotland, U.K. 

 a Ultrastructure and cytochemistry of the surface coat in early embryos. Xenopus laevis (Anura), 



Triturus alpestris (Urodela) 

 b Electron microscopy and cytochemistry of developing oocytes, especially nucleoli and nucleo- 



cytoplasmic relationships. Xenopus laevis (Anura) 

 DESTRETi, O. H. J. Drs. - Anat.-Embryol. Inst., Univ. of Amsterdam, Mauritskade 61, AMSTER- 



DAM-O., Netherlands 

 a Histones in early embryonic development. Xenopus laevis (Anura) 



27 



