Technical Report
 

An Annotated Check List of the Gastropods of Cape Arago, Oregon

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https://ir.library.oregonstate.edu/concern/technical_reports/n8710070r

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  • Between 43° 17' and 43° 21' north latitude along the south-central coast line of Oregon lie the collecting grounds adjacent to the Oregon Institute of Marine Biology. These 10 miles of coast line, between Coos Bay and Cape Arago, provide an assortment of intertidal environments ranging from the protected brackish waters and mud flats of Coos Bay to the rugged cliffs and rocky shores between there and Cape Arago. The mud flats near Fossil Point, the brackish shores of South Slough within Coos Bay, the open sandy stretches of Bassendorf and Light House beaches, and the protected small embayments, including the sandy and rocky shores of Mussel Reef, Light House Reef, Squaw Island, and Middle Bay are the principal stations from which the collections of molluscs have been obtained. ( Figure 1). A report of the gastropods gathered during the summers of 1938, 1939, and 1940 from these stations is presented here in the form of two lists, one a check list of the genera and species alphabetically arranged and the other a systematic presentation with some collection notes and a selected bibliography of descriptions and illustrations. The references given after each citation are not to the original papers in which the species were described but to im­portant papers in which the given species is cited. The lists are admittedly not complete for the shell-bearing gastropods of the region but rather repre­sent a progress report up to 1941. The collections and many of the identifi­cations have been made by the junior author while verifications and further identifications have been made by the senior author. It has been one purpose of the paper to include such notes as were available concerning each species so that this work might serve as a contribution toward further studies. Species represented only by empty shells may, in part at least, be inhabitants of regions beyond the littoral belt. Most of the collecting has been done from the shore but a few specimens were brought up in fishing gear and presented to us by the local fishermen; these have been particularly welcome for they represent deep-water forms that otherwise would have been inaccessible. The collections are deposited at the Oregon Institute of Marine Biology and in the Paleontology Museum, Leland Stanford Junior University.
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file details AnnotatedChecklistGastropods1942.pdf 2024-01-09 Público Descargar