Montoya-Mendoza Jesús, Salgado-Maldonado Guillermo, Okolodkov Yuri
Laboratorio de Investigación en Acuacultura Aplicada, Tecnológico Nacional de México, Instituto Tecnológico de Boca del Río, Boca del Río, Veracruz, México.
Laboratorio de Helmintología, Instituto de Biología, Universidad Nacional Autónoma de México, Ciudad de México, México.
Rev Bras Parasitol Vet. 2021 Mar 12;30(1):e018420. doi: 10.1590/S1984-296120201084. eCollection 2021.
Engraulicola lamothei n. sp. (Monogenea: Gastrocotylidae) is described from the gills of Chloroscombrus chrysurus (Teleostei: Carangidae) from Veracruz, southern Gulf of Mexico. This monogenean is 1110-1670 (1328) µm long and 260-550 (363) µm wide. The haptor is asymmetrical, the long side has several clamps (35-42), and the short side has a single clamp; the posterior end has a small lappet armed with two dissimilar pairs of hooks. Male and female genital pores open near the anterior body end; the male genital pore is ventral, armed with a corona of 12 spines; the female pore is dorsal and unarmed. The new species differs from Engraulicola forcipopenis George, 1960 and from Engraulicola micropharyngella Unnithan, 1967 by lacking a pair of pointed forceps-like spines at the end of the penis amid the corona spines, and from Engraulicola thrissocles Tripathi, 1959 by the number of clamps on both sides, the number the hook pairs on the terminal lappet and the testis number. This is the first record of the genus Engaulicola George, 1960 on the Atlantic West Coast.
拉莫氏食鳃吸虫新种（单殖吸虫纲：胃殖科）采自墨西哥湾南部韦拉克鲁斯的金带叶鲹（硬骨鱼纲：鲹科）鳃部，并予以描述。该单殖吸虫体长1110 - 1670（平均1328）微米，宽260 - 550（平均363）微米。钩器不对称，长边有若干小钩（35 - 42个），短边有一个小钩；后端有一小叶，具两对不同的钩。雄雌生殖孔开口于虫体前端附近；雄生殖孔位于腹面，有一圈12根刺；雌生殖孔位于背面，无刺。该新种与1960年的钳形食鳃吸虫及1967年的微咽食鳃吸虫不同，在于阴茎末端在刺冠中缺少一对尖钳状刺；与1959年的鲹食鳃吸虫不同，在于两侧小钩数量、末端小叶上钩对数量及睾丸数量。这是1960年食鳃吸虫属在大西洋西海岸的首次记录。
