The Chromosome Complement of Leptorhyncoides plagicephalus (Westrumb, 1821), (Acanthocephala: Rhadinorhynchidae).

Ecology of the Acanthocephala

Commonly known as spiny-headed worms, acanthocephalans have a characteristic eversible proboscis, which bears rows of recurved spines used for attachment to the intestine of their host. Acanthocephalans are endoparasitic and an extremely successful group found in almost all marine, freshwater and terrestrial systems, infecting a huge range of definitive (usually vertebrate) and intermediate (us...

X-Chromosome Complement and Estrogen

Rhadinorhynchus oligospinosus n. sp. (Acanthocephala, Rhadinorhynchidae) from mackerels in the Pacific Ocean off Peru and related rhadinorhynchids in the Pacific, with notes on metal analysis

Specimens of a new species of Rhadinorhynchus Lühe, 1911 are described from the chub mackerel Scomber japonicus (Scombridae) and the Chilean Jack mackerel Trachurus murphyi (Carangidae) (possibly a subspecies of Trachurus symmetricus) from the Pacific Ocean off the Peruvian coast at the Port of Chicama, La Libertad. Specimens of Rhadinorhynchus oligospinosus n. sp. are somewhat small having 11-...

Location of ribosomal DNA in the human chromosome complement.

Hybridization of (3)H-labeled ribosomal RNA to human chromosomes on slides resulted in specific labeling of the satellite regions of chromosomes 13, 14, 15, 21, and 22, with an over-all efficiency of about 5%. Differences between D and G chromosomes, and between associated and unassociated satellites, were not significant. Labeling of all other parts of the preparations was nonspecific, and inc...

Complement Activation in Chromosome 13 Dementias

From the Departments of ‡Pathology and §§Psychiatry, School of Medicine, New York University, New York, New York 10016, the ¶Queen Square Brain Bank and Department of Molecular Pathogenesis, Division of Neuropathology, Institute of Neurology, University College of London, London WCIN3BG, United Kingdom, the Departments of Neurology and ‡‡Neuropathology, Århus University Hospital, Århus DK8000, ...