http://hdl.handle.net/10125/3271 Sun, 19 May 2013 09:10:06 GMT 2013-05-19T09:10:06Z http://hdl.handle.net/10125/7297 Mon, 01 Jan 1968 00:00:00 GMT http://hdl.handle.net/10125/7297 1968-01-01T00:00:00Z Winkler, Lindsay R http://hdl.handle.net/10125/7296 Mon, 01 Jan 1968 00:00:00 GMT http://hdl.handle.net/10125/7296 1968-01-01T00:00:00Z McRoy, CP http://hdl.handle.net/10125/7295 At the beginning of the eighteenth century Pandanus was found growing naturally on Madagascar. The first species from there were described by du Petit Thouars. Subsequent discoveries revealed that it was one of the three great centers of the genus, with 63 species. Mon, 01 Jan 1968 00:00:00 GMT http://hdl.handle.net/10125/7295 1968-01-01T00:00:00Z St. John, Harold http://hdl.handle.net/10125/7294 Up to the present there has been known only one species of Pandanus in the Iles Comores, P. maximus Martelli (sect. Pandanus), indigenous to the Ile Grande Comore. Now, there can be announced a second species from the islands, P. mayotteensis (sect. Vinsonia). The islands lie in the Mozambique Channel, about midway between Madagascar and Mocambique, Africa. Mon, 01 Jan 1968 00:00:00 GMT http://hdl.handle.net/10125/7294 1968-01-01T00:00:00Z St. John, Harold http://hdl.handle.net/10125/7253 Twenty-four tetrasiphonous species are described. The following species or varieties are new: Polysiphonia anomala, P. apiculata, P. delicatula, P. flaceidissima var. decimera, P. flaccidissima var. iki, P. flaccidissima var. lopi, P. hawaiiensis, P. herpa, P. poko, P. poko var. longii, P. profunda, P. pseudovillum, P. quadrata, P. rubrorhiza, P. setacea, P. sphaerocarpa var. distans, P. sphaerocarpa var. filifera , P. subtilissima var. abbottae, P. tenais, P. tuberose, P. scopulorum var. macrotrichia, P. scopulorum var. minima. The following new combinations are made: P. saccorhiza (Collins and Hervey) comb. nov., P. sparsa (Setchell) comb. nov., P. scopuloram var. villum 0. G. Agardh) comb. nov., P. mollis var. tongatensis (Harvey) comb. nov. Mon, 01 Jan 1968 00:00:00 GMT http://hdl.handle.net/10125/7253 1968-01-01T00:00:00Z Hollenberg, George J http://hdl.handle.net/10125/7252 Mon, 01 Jan 1968 00:00:00 GMT http://hdl.handle.net/10125/7252 1968-01-01T00:00:00Z Kenner, Diana D; Hohl, Hans R; Baker, Gladys E http://hdl.handle.net/10125/7251 Seven Antarctic marine environments are examined with respect to their geology and to the skeletal remains of marine microorganisms. While all assemblages live in the same water mass, they vary significantly from place to pl ace. Geology and oceanography of each locality appear to produce less effect upon the character of populations than do topography and bay ice. The latter features suggest a possible use of fossils as indicators of conditions of bay ice. Mon, 01 Jan 1968 00:00:00 GMT http://hdl.handle.net/10125/7251 1968-01-01T00:00:00Z Thomas, Charles W http://hdl.handle.net/10125/7250 Compressional wave velocities determined by measurement of travel times of pulses at pressures to 10 kilobars are given for specimens of basalt. Variations of velocity with propagation direction are related to feldspar orientation and inhomogeneity in alteration of the specimens. Velocity differences reported for diabase, gabbro, eclogite, and basalt can be explained in terms of variation of density and mean atomic weight . The basalts have the lowest compressional wave velocities of basic rocks. The low velocities are a consequence of slight alteration, high mean atomic weight, and relatively low density. Mon, 01 Jan 1968 00:00:00 GMT http://hdl.handle.net/10125/7250 1968-01-01T00:00:00Z Christensen, Nikolas I http://hdl.handle.net/10125/7249 Previously the author reported on the quantitative distribution of epifaunal species and individuals and their zonation on a siltstone reef located in the open ocean near Corona del Mar, California (Pequegnat, 1964) . A marked top-to- bottom reduction in numbers of species and individuals was observed to exist on this reef, and these changes were related to a reduction of wave-induced water movements from the reef's upper to lower levels. Three observations pointed to the desirability of determining the distribution of biomass over the rock-reef: (1) the populations of some species were greatest on the reef's lower levels, (2) several of the largest species with relatively small numbers of individuals occurred here, and (3) there appeared to be a shift from a preponderance of suspension-feeders at the top toward increasing importance of deposit-feeders and scavengers at the base. Mon, 01 Jan 1968 00:00:00 GMT http://hdl.handle.net/10125/7249 1968-01-01T00:00:00Z Pequegnat, Willis E http://hdl.handle.net/10125/7226 Mon, 01 Jan 1968 00:00:00 GMT http://hdl.handle.net/10125/7226 1968-01-01T00:00:00Z Yamaguti, Satyu http://hdl.handle.net/10125/7225 Two Atlantic and five Pacific species of triggerfish produce sounds by movements of the pectoral fins against the side of the body. The behavior associated with sound production was observed in the field and in populations established in the laboratory. The sounds produced by all species when held by the hand underwater were analyzed and the pectoral fin-air bladder mechanism used to produce the sounds was studied principally by a series of ablation experiments. Mon, 01 Jan 1968 00:00:00 GMT http://hdl.handle.net/10125/7225 1968-01-01T00:00:00Z Salmon, Michael; Winn, Howard E; Sorgente, Nino http://hdl.handle.net/10125/7222 Many parts of the tropical oceans appear to be relatively seasonless, but, because of the difficulty of sampling mobile and patchily distributed animals and the cost of oceanographic investigations, few data are available on the extent of seasonal changes. By regularly collecting regurgitations from sea birds, and identifying and measuring the food items, seasonal data could be obtained on the availability, size classes, and perhaps reproductive cycles of the fish and squid characteristic of the surface layer of tropical seas. Flying fish (Exocoetidae), juvenile tunas (Scombridae), and squid of the family Ommastrephidae are especially easily obtainable. Experience gained during a recent study of the comparative feeding ecology of sea birds on Christmas Island (Pacific Ocean) makes it possible to assess the characteristics of bird species which affect their suitability for such study. Potentially useful species include terns (especially Sterna fuscata, Anous stolidas, A. tenuirostris, and Gygis alba) and boobies (especially Sula Sula). Samples could be obtained from several bird species in the same period, and a program could include sampling of inshore waters with the neuston net and making basic oceanographic observations. Investigations of this kind could be carried out economically on any of a large number of tropical oceanic islands. Mon, 01 Jan 1968 00:00:00 GMT http://hdl.handle.net/10125/7222 1968-01-01T00:00:00Z Ashmole, Myrtle J; Ashmole, NP http://hdl.handle.net/10125/7219 Mon, 01 Jan 1968 00:00:00 GMT http://hdl.handle.net/10125/7219 1968-01-01T00:00:00Z