Pacific Science Volume 18, Number 1, 1964

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Pacific Science is a quarterly publication devoted to the biological and physical sciences of the Pacific Region.

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    Chromosome Homology in the Ceratobium, Phalaenanthe, and Latourea Sections of the Genus Dendrobium
    (University of Hawai'i Press, 1964-01) Kamemoto, H. ; Shindo, K. ; Kosaki, K.
    The Dendrobium genus comprises over 1,000 species of epiphytic orchids distributed over a vast triangular area connecting Indi a, New Zealand, and Japan, and including most of the tropical and subtropical land areas between 60 and 180 east longitude. This large genus has been subdivided into numerous sections on the basis of morphological characteristics (Holttum, 1957). Members of the Ceratobium, Phalaenanthe, and Latourea sections are distributed in New Guinea and surrounding areas. Both Ceratobium and Latourea are represented by at least 30 species each, while Phalaenanthe includes a relatively few species. Several species in these sections have been widely cultivated and extensively hybridized to produce the improved and popular horticultural varieties of today.
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    The Correct Name for the Hawaiian Gossypium
    (University of Hawai'i Press, 1964-01) Wilbur, Robert L.
    For almost a century the endemic Hawaiian Gossypium has been known as G. tomentosum. This species has received much attention especially in recent years since it has been thought by some to form together with the two American cultivated cottons, G. hirsutum L. and G. barbadense L., a small section of closely related species with a similar distinctive origin. The section is unique within the genus in that its three related species, as interpreted by Hutchinson, Silow, and Stephens (1947), are alloretraplaids reputedly having derived one genome from the diploid American complex and another from the group to which the Asiatic and African cultivated cottons belong. Naturally species with apparently as bizarre an origin as these three have been frequently discussed in the cytological, genetical, and phytogeographical literature. As a result the name G. tomentosum has become very well known indeed for the Hawaiian plant. Unfortunately for the sake of stability, this application of the name
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    Contributions to the Knowledge of the Alpheid Shrimp of the Pacific Ocean, IX. Collections from the Phoenix and Line Islands
    (University of Hawai'i Press, 1964-01) Banner, Albert H. ; Banner, Dora M.
    This paper initiates a series of three studies in the continuing series on the alpheids from the central Pacific that are based primarily upon collections made under the auspices of the Bernice P. Bishop Museum. In 1954 the senior author received a travel grant from the Bernice P. Bishop Museum and Yale University that permitted him to collect alpheids from wide areas in the central Pacific. The grant was made as part of the tri-institution program (TRIPP) of those two institutions and the University of Hawaii for the increase of scientific knowledge of the Pacific.
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    Bathymetric Distribution of Chaetognaths
    (University of Hawai'i Press, 1964-01) Alvarino, Angeles
    The present report on the vertical distribution of the Chaerognatha is based on a study of the collections of plankton made by the Scripps Institution of Oceanography expeditions in the Pacific (Fig. 1) and Indian oceans. Therefore, all the data included and discussed in this paper have been obtained by the author from studies and analysis of thousands of plankton samples from those oceans; and, when other sources of information are used in the discussion, the name and date of the corresponding authority and publication are given. The samples studied here that cover the Pacific and Indian oceans were taken at 140 m depth (oblique hauls), and at other various depths: 270,300, 363,600, 700 or 868 m (closing nets or vertical tows), down to 3000 m deep (mid-water trawls). The results obtained from these expeditions and from the material examined while studying the seasonal distribution of chaetognaths in the California waters, and also from previous work in the Atlantic, has made it possible to group the species of this phylum into several categories based on their distribution in depth.
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    Morphogenesis of Tedania gurjanovae Koltun (Porifera)
    (University of Hawai'i Press, 1964-01) Bakus, Gerald J.
    During the course of a study of the marine sponges of the San Juan Archipelago, Washington, the discovery of several specimens of Tedania gurjanovae Koltun (Koltun, 1958 :65 , fig. 20) was of special interest because of the opportunity provided to observe its larval metamorphosis. This species had been known previously only from the eastern part of the Tatar Strait, off Sakhalin, USSR, at depths of 60 to 100 m (Koltun, 1958, 1959) . The present specimens (No. 30, 58, 90, 112, lot 163) were dredged in depths of 73 to 198 m in President Channel and San Juan Channel, San Juan Archipelago, Washington, and now reside in this writer's personal collection. An account of the morphology, larval metamorphosis, ecology, and taxonomy of the Washington population is given here.
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