Composition of glycoproteins secreted by tracheal explants from various animal species.

1. The acidic and neutral glycoproteins secreted by cultured tracheal explants from pigs, sheep, rats, mice, monkeys, guinea pigs, dogs and chickens were purified and fractionated by column chromatography on DEAE-cellulose and by electrophoresis on cellulose acetate. 2. The ratios of acidic to neutral mucus glycoproteins were compared for the above animals with that of mucus glycoproteins secreted by cultured human bronchi. 3. The observed ratios of acidic to neutral glycoproteins ranged from 4.0 (mouse) to 7.2 (chicken and pig) from cultured tracheae; secreted human bronchial mucus had a ratio of 2.7. 4. The ratio of acidic to neutral glycoproteins secreted by tracheal explants varied with duration of incubation of the trachea in culture.     

Two new species of Chimaericola Brinkmann (Monogenea: Chimaericolidae) from Hydrolagus spp. (Chimaeriformes: Chimaeridae) in the Pacific

Chimaericola ogilbyi n. sp. and C. colliei n. sp. are proposed for chimaericolids found on the gills of the ghost shark, Hydrolagus ogilbyi taken off the coast of southeastern Australia, and the ratfish, H. colliei, taken off the coast of Vancouver Island, respectively. Supplementary observations on C. leptogaster, the type-species of the genus Chimaericola, are included. The two new species are differentiated on the size and shape of the median sucker sclerite, hamuli, spines of the male copulatory apparatus and eggs. Amended diagnoses for the family Chimaericolidae and genus Chimaericola are provided.