Abstract

The larval development of Chirolophis japonicus and Ch. saitone from the yolk-sac stage to the settlement on the bottom is described from waters of Peter the Great Bay, Sea of Japan. The pattern of distribution of melanin pigmentation over the body of larvae in these Chirolophis species is formalized for the first time. It consists of six rows, the aggregation on the top of head, and several single melanophores. Despite the similarity between the species, each of them has its specific features that are manifested mainly as a different number of axial skeleton elements (total number of vertebrae and number of rays in the dorsal and anal fins). A conclusion is made that a reliable diagnostic character to identify larvae of Ch. japonicus and Ch. saitone within the period of their development from hatching to settlement can be the number of melanophores at the base of the anal fin rays.

中文翻译：

---

日本小叶对虾和Ch。来自日本海彼得大帝湾的赛豆（Stichaeidae）浮游幼虫

摘要

日本对虾和日本对虾的幼虫发育。saitone从卵黄囊阶段底部的结算是从彼得大帝湾，日本海水域描述。这些Chirolophis物种的幼虫体内黑色素色素沉着的分布模式首次被正式确定。它由六行，顶部的集合和几个单个的黑色素组成。尽管物种之间具有相似性，但每个物种都有其特定特征，这些特征主要表现为轴向骨骼元素的数量不同（椎骨总数以及背鳍和臀鳍中的射线数）。结论是，一种可靠的诊断特征可鉴定Ch。的幼虫。日本和Ch。从孵化到沉降的整个过程中，赛诺通可能是肛门鳍射线基部上的黑色素细胞数量。