Recent excavations of Ifri Oudadane, a prehistoric rockshelter on the Mediterranean coast of NW Morocco, yielded a rich marine and terrestrial fauna. We present an analysis of the shellfish remains (exoskeleton-bearing aquatic invertebrates) from the 2011 trench, covering the Epipaleolithic and Early Neolithic levels. A total of 4,415 liters of sediment contained 8,749 specimens (MNI) of at least 40 species of shellfish: 12 bivalves, 24 gastropods, one tusk shell, barnacles, crabs, and sea urchins. The mean abundance of shellfish was 2 MNI per liter. Limpets (Patellidae), topshells (Trochidae), mussels (Mytilidae), and rockshells (Muricidae) formed 98% of the total mollusk fauna and were part of the diet; limpets prevailed in Epipaleolithic levels and topshells in Neolithic ones. Evidence was found for a systematic butchering of topshells (Phorcus turbinatus): the shells in Epipaleolithic levels were mostly smashed while topshells in Neolithic levels were usually topped in a uniform way. Seven species of mollusks showed traces of manipulation and were used as ornament or tools. Species used as food, such as limpets, topshells, and mussels, never show any indications of being used as ornament or tools, and the mollusks that were used as jewelry or tools were not part of the diet.

中文翻译：

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食物和装饰品：在摩洛哥东北部全新世定居点 Ifri Oudadane 使用贝类

最近对位于摩洛哥西北部地中海沿岸的史前岩石庇护所 Ifri Oudadane 的发掘产生了丰富的海洋和陆地动物群。我们对 2011 年海沟的贝类遗骸（带有外骨骼的水生无脊椎动物）进行了分析，涵盖了旧石器时代和新石器时代早期的水平。总共 4,415 升沉积物包含至少 40 种贝类的 8,749 个样本 (MNI)：12 只双壳类动物、24 只腹足动物、1 个象牙壳、藤壶、螃蟹和海胆。贝类的平均丰度为每升 2 MNI。帽贝 (Patellidae)、贝类 (Trochidae)、贻贝 (Mytilidae) 和岩贝 (Muricidae) 占软体动物群总数的 98%，是饮食的一部分；帽贝盛行于旧石器时代，顶壳盛行于新石器时代。有证据表明对上壳（Phorcus turbinatus）有系统的屠杀：旧石器时代水平的贝壳大多被粉碎，而新石器时代水平的上壳通常以统一的方式打顶。七种软体动物显示出被操纵的痕迹，并被用作装饰品或工具。用作食物的物种，如帽贝、上壳和贻贝，从未表现出任何被用作装饰品或工具的迹象，用作珠宝或工具的软体动物不属于饮食的一部分。