Cheng Yu-Rong, Luo Hao-Yuan, Dai Chang-Feng, Shih Hsiu-Hui
Institute of Oceanography, National Taiwan University, Taipei, 10617, Taiwan.
Syst Parasitol. 2014 Jul;88(3):281-7. doi: 10.1007/s11230-014-9501-8. Epub 2014 Jun 17.
A new species of Acanthochondria Oakley, 1927 (Copepoda, Poecilostomatoida, Chondracanthidae), parasitic in the pharynx of hagfishes Eptatretus burgeri (Girard), E. sheni (Kuo, Huang & Mok) and E. yangi (Teng), from off Taiwan is described and illustrated. The new species can be distinguished from its congeners by having the neck region longer than wide (about 2-3 times as long as wide), the moderately long protopod of leg 2 (Type E), the endopod of leg 2 as large as exopod, the cephalosome wider than long, the armature formula of antennule (1, 1, 2, 2, 9), the relatively long trunk (6.7 mm) and egg-sacs (14.4 mm). This is the first record of a parasitic chondracanthid from hagfishes. The findings may provide insights into the phylogenetic relationships and interactions among chondracanthids, hagfishes and demersal fishes, but call for further molecular studies.
描述并图示了一种寄生于台湾海域盲鳗（Eptatretus burgeri (Girard)、E. sheni (Kuo, Huang & Mok) 和 E. yangi (Teng)）咽部的新物种——棘刺鱼蚤属（Acanthochondria）新种（桡足纲，鳃尾蚤目，棘刺鱼蚤科），1927年由奥克利命名。该新物种与同属其他物种的区别在于：颈部区域长大于宽（约为宽的2至3倍）；第二对胸足的底节适度长（E型）；第二对胸足的内肢与外肢大小相同；头胸部宽大于长；小触角的武装模式为（1, 1, 2, 2, 9）；躯干相对较长（6.7毫米），卵囊较长（14.4毫米）。这是首次记录到寄生于盲鳗的棘刺鱼蚤科物种。这些发现可能为深入了解棘刺鱼蚤科、盲鳗和底栖鱼类之间的系统发育关系及相互作用提供线索，但仍需进一步开展分子研究。
