Browsing by Journal Issue "scas/vol69/iss2"
Now showing items 1-10 of 10
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A New Spionid (Annelida: Polychaeta) from the Gulf of California
Polydora wobberi sp. nov., is described from Bahia de San Francisquito on the eastern side of Baja California, where it inhabits burrows bored into the white gorgonacean, Lophogorgia sp. It is related to another species ... -
Alteration of Neural Spine Height in Certain Early Permian Tetrapods
The neural spines of successive dorsal vertebrae in specimens of the Early Permian cotylosaur Captorhinus aguti alternate in height. The pattern of alternation is almost, but apparently not quite, completely regular. The ... -
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Revival of the Monotypic Genus Boshellia Ewing, 1950 (Acarina: Trombiculidae)
Boshellia Ewing is resurrected from synonymy and redescribed. The type species Neoschoengastia hirsuta Boshell and Kerr is also redescribed and a lectotype designated. -
The Effect of Temperature on the Setal Characteristics in Polynoidae (Annelidae: Polychaeta).
The parapodia of two species of polynoid polychaetes, Halosydna brevisetosa and H. johnsoni, were amputated and allowed to regenerate under varying temperature conditions to test the validity of the structure of the ... -
The Organic Matrix in Developing Dental Enamel and Dentin Studied by Scanning Electron Microscopy
Sections of the matrix of developing dentin and enamel from the foetal pig, alligator lizard, bullfrog and trigger-fish were examined with scanning electron microscopy. The major difference appears to be in the number and ... -
Three New Species of Hannemania (Acarina, Trombiculidae) from Amphibians of Western Mexico
Hannemania anurae, n. sp. is described from 1 km NE Santa Lucia, Sinaloa, Mexico, type host Syrrhophiis modestus pallidus; other hosts are Hyla arenicolor, Hyla eximia, Rana montezumae, Rana pipiens, Rana pustulosa, Rana ...