Retinofugal projections in the lepidosirenid lungfishes

Autoradiographic and silver methods indicate that the African and South American lungfishes, Protopterus and Lepidosiren , lack ipsilateral retinal projections. Contralaterally, the retina projects to the preoptic nucleus of the hypothalamus, to four discrete areas located in the lateral neuropil of the thalamus, to a superficial pretectal neuropil, to the upper half of the tectal neuropil, and to a laterally situated basal optic neuropil located in the rostral tegmentum. The overall pattern of the primary retinofugal projections is markedly similar to that of amphibians which suggests that lungfishes may be more closely related to amphibians than to actinopterygian fishes. Neotenic trends in both lepidosirenid lungfishes and urodeles may be expressions of parallelism, hence Latimeria and Neoceratodus must be examined to resolve this phylogenetic problem. A 300-fold range in the size of the eye, indicated by the number of ganglion cells present, occurs among lungfishes, salamanders and frogs. This variation may have implications for recognizing the morphological expression of selection operating on the visual systems of lepidosirenids and amphibians.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/50000/1/901740402_ftp.pd

Wound healing in glaucoma filtering surgery

Successful glaucoma filtering surgery is characterized by the passage of aqueous humor from the anterior chamber to the subconjunctival space, which results in the formation of a filtering bleb. Aqueous in the subconjunctival space may then exit by multiple pathways. Bled failure most often results from fibroblast proliferation and subconjunctival fibrosis. Factors associated with an increased risk of bleb failure include youth, aphakia, active anterior segment neovascularization, inflammation, previously failed glaucoma filtering surgery, and, possibly, race. Several surgical and pharmacologic techniques have recently been introduced to enhance success in eyes with poor surgical prognoses. To elucidate the scientific rationale of these methods, we summarize the process of wound healing after glaucoma filtering surgery and describe postoperative clinical and histopathologic features, factors which may affect success, and specific methods to improve surgical success.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/26516/1/0000054.pd

Un musée ornithologique en pleine montagne : la collection Berlie, à Tournoux (Basses-Alpes)

Rochon-Duvigneaud André. Un musée ornithologique en pleine montagne : la collection Berlie, à Tournoux (Basses-Alpes). In: La Terre et La Vie, Revue d'Histoire naturelle, tome 4, n°3, 1934. pp. 142-145

Un artiste qui fusille les modèles

Rochon-Duvigneaud André. Un artiste qui fusille les modèles. In: La Terre et La Vie, Revue d'Histoire naturelle, tome 8, n°6, 1938. p. 187

Une excursion au parc national espagnol du val d'Ordesa

Rochon-Duvigneaud André. Une excursion au parc national espagnol du val d'Ordesa. In: La Terre et La Vie, Revue d'Histoire naturelle, tome 6, n°4, 1936. pp. 197-206