803643 Arai, Ryoichi, Tajima, Hideo, and Tamaoki, Bun-ichi. 

 1969. In \itro transformation of steroids by the head 

 kidney, and the corpuscles of Stannius of the rainbow 

 trout (Salmo zairdneri). Gen Comp Endocrinol 12(1): 

 99-109. 2 figs., 3 tables. 



803644 Henderson, Nancy E. 1969. Structural similarities 

 between the neurohypophyses of brook trout and 

 tetrapods. Gen Comp Endocrinol 12(1): 148 — 153. 2 

 figs. 



803645 Heinicke, E., and Perks, A. M. 1969. The magnesium 

 potentiation of the oxytocic activity of pituitary extracts 

 from an eiasmobranch (Raia rhina). Gen Comp 

 Endocrinol 12(1): 168-171. 2 tables. 



803646 Butler. David G., Donaldson. Edward M., and Clarke, 

 W. C 1969. Physiological evidence for a pituitary- 

 adrenocortical feedback mechanism in the eel (Anguilla 

 rostrata ). Gen Comp Endocrinol 12(1): 173—176. 1 fig. 



803647 Nieuwenhuizen, Arend van den. 1969. Balantiocheilus 

 melanopterus. Aquarium (Den Haag) 39(9): 196—197. 

 1 fig. 



803648 Isbrucker, I. J. H. 1969. Over de namen van enkele 

 Corydoras-soorten. Aquarium (Den Haag) 39(9): 

 202-203. 4 figs. 



803649 Boisson, Charles, Mattei, Xavier, and Mattei, Claudine. 

 1969. Mise en place et evolution du complexe centriolaire 

 au cours de la spermiogenese d" Upeneus prayensis C.V. 

 (poisson Mullidae). J Microsc 8(1): 103-112. 6 figs. 



803650 Moss, Brian, and Moss, Joyce. 1969. Aspects of the 

 limnology of an endorheic African lake (L. Chilwa, 

 Malawi). Ecology 50(1): 109-118. 3 figs., 7 tables. 



803651 Strack, H. W. 1969. Erstmaliger Nachweis von 

 gleichzeitiaem Horen und Sehen bei Fischen. Umsch 

 Wiss Tec 69(6): 175-176. 1 fig. 



803652 Hanke, Wilfried. 1969. Hormone, stammesgeschichtlich 

 betrachtet. Umsch Wiss Tec 69(2): 42-47. 6 figs. 



803653 Mazeaud, Madeleine. 1969. Adrenaline: catabolites et 

 excretion urinaire chez un Teleosteen, Salmo gairdnerii. 

 C R Hebd Seances Acad Sci Paris Ser D 268(1): 

 128-131. 2 figs., 1 table. 



803654 Balakrishnan, K. P. 1969. Observations on the 

 occurrence of Conchoderma virgatum (Spengler) 

 (Cirripedia) on Diodon hvstrix Linnaeus (Pisces). 

 Crustaceana 16(1): 101-103. 2 figs. 



803655 Lim, R., and Agranoff, B. W. 1969. Protein metabolism 

 in gold fish brain. J Neurochem 16(3): 431—445. 3 figs., 

 7 tables. 



803656 Cavender, Ted. 1969. An Oligocene mudminnow 

 (Family Umbridae) from Oregon with remarks on 

 relationships within the Esocoidei. Occas Pap Mus Zool 

 Univ Mich (660): 33p. 8 figs. 



803657 Klausewitz. Wolfgang. 1969. Anisochaetodon 

 trivirgatus — Chaetodon striatus. Aquarien Terrarien Z 

 22(3): 78-79. 2 figs. 



803658 Schroder, Johannes H. 1969. Experimentell erzeugte 

 Mutationen beim Guppy, Poecilia (Lebistes) reticulata 

 Peters. Aquarien Terrarien Z 22(3): 76—78. 1 fig. 



803659 Scheel, Joergen J. 1969. Zur Identifizierung von Oesers 

 Aphvosemion. Aquarien Terrarien Z 22(3): 74—76. 1 

 fig- 



803660 Schachtschabel, Franz. 1969. Bemerkungen zur Zucht 

 von Poecilobrycon eques. Aquarien Terrarien Z 22(3): 

 73. 



803661 Roloff, Erhard. 1969. Neolebias unifasciatus 

 Steindachner. Aquarien Terrarien Z 22(3): 68 — 69. 1 fig. 



803662 Meinken, Hermann. 1969. Poecilocharax weitzmani 

 Gery 1965, der Grunpunkt-Tetra. Aquarien Terrarien Z 

 22(3): 71-73. 1 fig. 



803663 Hirschberg, Walter. 1969. Zuchterfolge von 

 Gymnochanda filamentosa. Aquarien Terrarien Z 22(3): 

 69-71. 1 fig. 



803664 Jahn, Johannes. 1969. Zur Haltung von Botia 

 sidthimunki Klausewitz. Aquarien Terrarien Z 22(3): 

 66-67. 2 figs. 



803665 Foersch, Walter. 1969. Roloffia occidentalis Clausen. 

 Aquarien Terrarien Z 22(3): 65. 1 fig. 



803666 Willemse, J. J. 1969. Schollarven zijn symmetrisch. 

 Natura(Eindhoven) 66(2): 28-30. 3 figs. 



803667 Ryther, John H. and Matthiessen, G. C. 1969. 

 Aquaculture, its status and potential. Oceanus 14(4): 

 2-14. 15 figs., 1 table. 



803668 Burdak, V. D. 1969. Ontogenesis of squammation in the 

 mullet (Mugil saliens Risso). Zool Zh 48(2): 241-247. 

 4 figs. In Russian with English summary. 



803669 Vinogradov, A. K. 1969. The way and time of primary 

 filling of the swim bladder in some Black sea fishes. Zool 

 Zh 48(2): 293-295. 1 fig. In Russian with English 

 summary. 



803670 Oinchuk, V. I. 1969. A finding of new specimens of the 

 rare shark Heterodontus ramalheira 

 (Heterodontiformes, Heterodontidae). Zool Zh 48(2): 

 295—297. 2 figs., 1 table. In Russian with English 

 summary. 



803671 Aichinger, Jul. 1969. Erfahrungen bei der Praparation 

 von Fossilien mit einem verbesserten Sandstrahlgerat. 

 Praeparator 15(1/2): 7-10. 4 figs. 



803672 Slack, H. D. 1969. XII. The reproduction and fecundity 

 of the powan, Coregonus clupeoides Lacepede, in Loch 

 Lomond. Scotland. Proc Rov Soc Edinburgh Sect B Biol 

 70(3): 233-264. 14 figs., 4 tables. 



803673 Smith, Gene. 1969. The all-purpose fish. Fla Wildfife 

 22(11): 10-15. 7 figs. 



803674 Cornell, J. H. 1969. How fish are identified. Part I. 

 Wildlife N C 33(4): 22-23. 4 figs. 



803675 Marushige, Keiji, and Dixon, Gordon H. 1969. 



Developmental changes in chromosomal composition 

 and template activity during spermatogenesis in trout 

 testis. Develop Biol 19(4): 397-414. 7 figs., 1 table. 



803676 Buckow, Ed. 1969. Exotics: new threat to U.S. waters. 

 Field Stream 74(1): 16-18, 20, 22, 24, 28. 2 figs. 



803677 Koeman, J. H., Noever de Brauw, M. C. ten, and Vos, 

 R. H. de. 1969. Chlorinated biphenyls in fish, mussels 

 and birds from the river Rhine and the Netherlands 

 coastal area. Nature (London) 221(5186): 1126-1128. 

 2 figs., 2 tables. 



803678 Kanno, Sakari. 1969. Growth and age distribution of 

 some fish species in the river Paimionjoki, southwestern 

 Finland. Ann Zool Fennici 6(1): 87—93. 11 figs., 3 

 tables. 



803643 - 803678 



