The Breeding Habits of Amblystoma punctatum Linn

Relations of Symmetry in the Developing Ear of Amblystoma Punctatum.

Abramowitz, A. A., "Regeneration of Chromatophore Nerves," Proc. Nat. Acad. Sci., 21, 137-141 (1935). Mills, S. M., "The Double Innervation of Fish Melanophores," Jour. Exp. Zool., 64, 231-244 (1932). Smith, D. C., "The Action of Certain Autonomic Drugs upon the Pigmentary Responses of Fundulus," Ibid., 58, 423-453 (1931). Wyman, L. C., "Blood and Nerve as Controlling Agents in the Movements of...

Return of Vision in Larval Eyes Exchanged between Amblystoma Punctatum and the Cave Salamander, Tryphlotriton Spelaeus.

Lens Induction in the Salamander (Amblystoma punctatum) with Special Reference to Conditions in Experimentally Produced Cyclopia *

It has long been known that the early optic vesicle and cup are much concerned with the growth and differentiation of the lens in the vertebrate eye. Le Cron"2 first demonstrated this fact when he isolated the lens-forming cells in Amblystoma embryos at various early stages in development by merely removing the underlying optic anlage. His experiments showed that the longer the lens epithelium ...

Grafted Eyes of Young and Old Adult Salamanders (Amblystoma Punctatum) Showing Return of Vision *

These experiments are part of a series which the senior author has been making on the grafted vertebrate eye in fishes, amphibians, and mammals. In all of the vertebrates studied the eyes were completely excised and then eith-er reimplanted in the same orbit or transplanted to the denuded orbit of another host. In placing the graft, care was taken to re-establish the normal orientation. In the ...

Food Habits of Bald Eagles Breeding in the Arizona Desert

-of 1814 foraging attempts, prey captures, or nest deliveries by Bald Eagles (Haliaeetus Zeucocephalus) in 14 Arizona breeding areas during 1983-1985, 1471 observations were identifiable to at least class: fish (76%), mammal (18%), bird (4%), and reptile/ amphibian (2%). Forty-five species were recorded: catfish (Zctalurus punctatus, fylodictis olivaris), suckers (Catostomus ins&k, C. clarki), ...