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首页> 外文期刊>Russian journal of marine biology >The Morphology of the Mandibles of the Larval and Adult Lobster Shrimp Boasaxius princeps and Leonardsaxius amurensis (Decapoda: Axiidea: Axiidae)
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The Morphology of the Mandibles of the Larval and Adult Lobster Shrimp Boasaxius princeps and Leonardsaxius amurensis (Decapoda: Axiidea: Axiidae)

机译：幼虫和成人龙虾虾Boasaxius princeps和Leonardsaxius amurensis的形态（黛比达：Axiidea：Axiidae）

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摘要

The morphology of the mandibles in the lobster shrimpsBoasaxius princepsandLeonardsaxius amurensisis described at different stages of ontogenesis. The incisor process of the mandibles in axiid zoeae is flattened antero-posteriorly, with three stout terminal teeth; the molar process is broad, the grinding surface is formed by transverse cuticular ridges and bears a fringe of brush-like projections on the anterior edge of the left mandible and on the posterior edge of the right mandible; between the terminal teeth of the incisor process and the molar process is a spine row formed by groups of spines. The general plan of the structure of the mandibles is retained in all zoeal stages; the number of transverse ridges on the molar process and the number of spine groups in the spine row increase as the larvae develop. In the megalopa stage, the mandible shape changes: the incisor process becomes broad and concave, the molar process is perpendicular to it; spines and ridges on the grinding surface of the molar process become reduced, small spines on the incisor process are retained on the cutting edge. Adult lobster shrimp lack cuticular structures on the molar and incisor processes of the mandibles. Despite the marked differences in the adult mandible morphology, the mandibles of the zoeae of Axiidea show similarity to the mandibles of the larvae of some caridean shrimps (e.g., the family Lysmatidae).
机译：龙虾虾镰刀酸叶氏菌的形态，在血晶生成的不同阶段描述了植物植物植物植物植物植物植物。在AxiId Zoeae中的颌骨中的切牙过程是扁平的挡板 - 后齿，具有三个粗糙的终端齿;磨牙工艺是宽的，磨削表面通过横向切割脊形成，并且在左侧下部的前沿和右侧颌骨的后边缘上承受刷状凸起的边缘;在切牙过程的末端齿之间，摩尔工艺是由血管组形成的脊柱。颌骨结构的一般计划保留在所有泻级阶段;随着幼虫的发展，脊柱行中脊柱横向脊的数量和脊柱行中的数量增加。在巨大的阶段，下颌骨形状变化：切牙过程变得宽泛，摩尔工艺垂直于它;在磨牙过程的研磨表面上的刺和脊状成降低，切牙过程上的小刺在切削刃上保持。成人龙虾虾在颌骨的磨牙和切牙过程中缺乏有粘性结构。尽管成人下颌骨形态存在明显差异，但Axiidea的Zoeae的颌骨的颌骨与一些Caridean虾的幼虫的颌骨颌骨的垂直疱疹（例如，家庭Lysmatidae）。

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