. The Canadian field-naturalist. 1974 Notes 93 Sponges of Minas Basin, Nova Scotia The general physiographic features of the unique Minas Basin were described by Bousfield and Leim (1960) in their major paper which summarized the faunal records for 10 phyla. Since that publication appeared, members of the Biology Department, Acadia University, have been collecting specimens of Minas Basin fauna and the result to date has been the addition of approximately 100 species to that list. Much of this material is as yet unpublished, however, partly because of the dearth of experienced systematists and


. The Canadian field-naturalist. 1974 Notes 93 Sponges of Minas Basin, Nova Scotia The general physiographic features of the unique Minas Basin were described by Bousfield and Leim (1960) in their major paper which summarized the faunal records for 10 phyla. Since that publication appeared, members of the Biology Department, Acadia University, have been collecting specimens of Minas Basin fauna and the result to date has been the addition of approximately 100 species to that list. Much of this material is as yet unpublished, however, partly because of the dearth of experienced systematists and the quantity of material with which ecologists and physiologists so casually inundate them. The convenient proximity of Acadia University to Minas Basin makes feasible the pursuit of field studies all year round. Low-water communities can be sampled dur- ing the maximal extreme low-water spring tides which more often occur during the academic year than during the summer field season. These occasional extreme lows expose acres of sublittoral fringe and make possible the in situ collection and photography of many species usually obtained only from dredge samples (Bleakney 1972; Bleakney and McAllister 1973). This preliminary account of sponges is based upon collections* and observations taken at extreme low-water springs in two areas: the southeast shoreline of Cape Blomidon (Figure 1) and one half mile east of Longspell *Specimens can be keyed out by referring to Hartman 1958 and Hartman 1964. Point at Kingsport (Figure 2). These two areas were chosen because they were the only sites along the western Basin shore (Figure 3) where sponges have consistently been observed over recent years. The Tide Table predic- tions for Saint John, New Brunswick were used for plan- ning field excursions, and the tide levels on those nine. Figure 1. Air photo from 400 feet, taken on 27 April, 1971, during a ' tide, of the sandstone terraces at the south- east face of Cape Blomidon. Note tr


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