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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Embryology and larval development of Acteon punctocoelata (Carpenter) (Gastropoda, Opisthobranchiata)

Brown, Scott E. 01 August 1972 (has links)
Acteon (Rictaxis) punctocoelata (Carpenter) is a primitive opisthobranch mollusc found sporadically in central California bays. The primitive nature of this genus is indicated both geologically and morphologically (Fretter and Graham, 1954 and Morton, 1958). This micro-phagous browser burrows just below the surface of the sandy mudflats, as do its close relatives Harninea, Scaphander, and Philine (Fretter and Graham, 1954). Its strong, sculptured external shell is approximately 1/2 inch long and is encircled with narrow black· bands that follow the whorls around the white shell (Fig. 1).
2

The Occurrence and Distribution of Eggs and Larvae of Prosobranch Molluscs in the Plankton of St. Margaret’s Bay, N. S.

Lamoureux, Paul Aimé January 1969 (has links)
Note:
3

The occurrence and distribution of eggs and larvae of prosobranch Molluscs in the plankton of St. Margaret's Bay, N.S.

Lamoureux, Paul. January 1969 (has links)
No description available.
4

The occurrence and distribution of eggs and larvae of prosobranch Molluscs in the plankton of St. Margaret's Bay, N.S.

Lamoureux, Paul. January 1970 (has links)
No description available.

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