Institute of Biodiversity and Ecosystem Research; Bulgarian Academy of Sciences; 1 Tzar Osvoboditel b.; 1000 Sofia; Bulgaria; Institute of Molecular Biology and Genetics of National Academy of Science of Ukraine; 03143 Kyiv; Ukraine.
Institute for Evolutionary Ecology; National Academy of Sciences of Ukraine; Lebedeva str. 37; 03143 Kyiv; Ukraine.
Zootaxa. 2023 Jun 30;5311(3):405-416. doi: 10.11646/zootaxa.5311.3.5.
The larval morphology of the endemic species Belgica antarctica Jacobs, collected in January and February (2022) from six sites of Antarctica, was studied. The mouth apparatus and the parapods of one hundred seventy-six larvae were analyzed. No differences were found in the morphology of these structures between individuals of different sites. However, differences (with the exception of the length of 2nd antennal segment) were estimated in the sizes of the morphological features, as 2023 measurements were made of fifteen kinds of these structures and larval body. Deformities of mentum, mandible, antennal blade and antennal segments in percentage were established in larvae of almost all of the studied sites. The reasons for the differences and deformities are discussed.
对 2022 年 1 月和 2 月在南极洲六个地点采集的特有种 Belgica antarcticaJacobs 的幼虫形态进行了研究。分析了 176 个幼虫的口器和胸足。不同地点的个体之间，这些结构的形态没有差异。然而，在形态特征的大小上估计存在差异（除了第 2 触角节的长度），因为在 2023 年对这些结构和幼虫体的 15 种进行了测量。在几乎所有研究地点的幼虫中，都确定了下颚、下颚、触角叶片和触角节的畸形率。讨论了差异和畸形的原因。
