Farias Amilcar, Neves Elizabeth G, Johnsson Rodrigo
Universidade Federal da Bahia, Inst. Biologia, LABIMAR - Crustacea, Cnidaria Fauna Associada, Av. Adhemar de Barros, s/n, Campus de Ondina, Bahia, BRAZIL - CEP: 40170-290.
Zootaxa. 2020 Jul 13;4810(3):zootaxa.4810.3.5. doi: 10.11646/zootaxa.4810.3.5.
Cryptopontius is the most species-rich genus in the family Artotrogidae with 25 species, being recorded in almost all oceans, except in the Arctic. However only three species of this genus have been recorded from the Brazilian coast, all of them along the coast of Pernambuco state. This study describes two new species of the genus. Cryptopontius phyllogorgius sp. nov. differs from other species by having 9-segmented antennule, and nine elements on the third exopodal segment of leg 4. Cryptopontius pentadikos sp. nov. differs from its congeners by having five expressed antennulary segments proximal to fused ancestral IX-XII, two setae on second endopodal segment of leg 1, eight elements on third exopodal segment of leg 1 and the free segment of leg 5 with two setae. A key to species of the genus Cryptopontius is provided.
隐螯虾属是阿氏螯虾科中物种最丰富的属，有25个物种，几乎在除北极以外的所有海洋中都有记录。然而，该属只有3个物种在巴西海岸被记录到，全部位于伯南布哥州海岸沿线。本研究描述了该属的两个新物种。新种叶状隐螯虾（Cryptopontius phyllogorgius sp. nov.）与其他物种的区别在于其触角有9节，以及第4步足外肢第三节上有9个结构。新种五节隐螯虾（Cryptopontius pentadikos sp. nov.）与其同属物种的区别在于，在融合的祖先第IX - XII节近端有5个明显的触角节，第1步足内肢第二节上有2根刚毛，第1步足外肢第三节上有8个结构，以及第5步足的游离节上有2根刚毛。本文还提供了隐螯虾属物种检索表。
