Abstract—

Gonadal structure, cytological condition of oocytes, ultrastructure of egg envelope, and spermatozoa morphology are studied in the individuals of Inimicus sinensis 120–230 mm TL with the gonads mainly at maturity stage IV. The males possess hypertrophied urinary bladders. Based on oocytes’ size distribution in the ovaries, the oogenesis is continuous and the spawning is multiple. Oocytes of the maturation period are 600–700 µm in diameter. The batch fecundity is 15 380 oocytes on average. The zona radiata of oocytes that have completed growth is 10.2 µm in width on average and it consists of two layers. The narrow outermost layer of the egg envelope approximately 0.34 µm width is most likely chorion. Spermatozoon ultrastructure of I. sinensis does not notably differ from that in other representatives of the suborder Scorpaenoidei with external insemination. The centriolar complex is characterized by orthogonal position of centrioles. Based on ovarian structure, the representatives of the genus Inimicus do not differ from the majority of teleost fishes and viviparous species of the genera Sebastes and Sebastiscus. However, many representatives of the suborder Scorpaenoidei have unique ovarian structure with the central ovigerous stroma attached to the anterior part of the ovary. Based on the current phylogenetic schemes, this ovarian type evolved independently in several evolutionary lineages.

中文翻译：

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斑点食尸鬼中华imi（Synanceiidae）生殖生物学的一些数据

摘要—

在中华绒螯蟹（Inimicus sinensis） 120-230mm TL个体中，性腺主要在成熟阶段IV，研究其性腺结构，卵母细胞的细胞学状况，卵壳的超微结构以及精子的形态。男性拥有肥大的膀胱。根据卵巢中卵母细胞的大小分布，卵子发生是连续的，产卵是多重的。成熟期的卵母细胞直径为600–700 µm。批量繁殖能力平均为15 380个卵母细胞。已完全生长的卵母细胞的放射带平均宽度为10.2 µm，由两层组成。蛋壳最窄的最外层约为0.34 µm宽，很可能是绒毛膜。中华I精子超微结构与外来授精的子蝎子亚科的其他代表没有明显不同。中心体复合体的特征在于中心体的正交位置。基于卵巢结构，Inimicus属的代表与Sebastes和Sebastiscus属的大多数硬骨鱼类和胎生种没有区别。然而，蝎子亚目的许多代表具有独特的卵巢结构，其中中央的卵生间质附着在卵巢的前部。根据当前的系统发育计划，这种卵巢类型在多个进化谱系中独立进化。