1849年范·贝内登氏棘槽绦虫属的五个新物种（真绦虫纲：四叶目：盘槽科），来自哥斯达黎加尼科亚湾的黄貂鱼。

Five new species of Acanthobothrium van Beneden, 1849 (Eucestoda: Tetraphyllidea: Onchobothriidae) in stingrays from 1he Gulf of Nicoya, Costa Rica.

作者信息

Marques F, Brooks D R, Monks S

机构信息

Department of Zoology, University of Toronto, Ontario, Canada.

出版信息

J Parasitol. 1995 Dec;81(6):942-51.

PMID:8544069

Abstract

Five new species of Acanthobothrium are described in stingrays from the Gulf of Nicoya, Costa Rica. Acanthobothrium costarricense n. sp. in Dasyatis longus, most similar to Acanthobothrium lilium, Acanthobothrium lineatum, and Acanthobothrium himanturi, has bothridial hooks averaging 125 microns (lateral) and 145 microns (medial) long, an average of 47 testes per proglottis, cirrus sacs averaging 187 microns long, and asymmetrical ovarian lobes with poral lobes reaching the posterior margin of the cirrus sac, and aporal lobes reaching the middle of the cirrus sac. Acanthobothrium cimari n. sp. in D. longus, most similar to A. lilium, A. lineatum, A. himanturi, A. costarricense, and Acanthobothrium semnovesiculum, has bothridial hooks averaging 117 microns (lateral) and 121 microns (medial) long, an average of 50 testes per proglottis, cirrus sacs averaging 164 microns long, and asymmetrical ovarian lobes with poral lobes reaching the posterior margin of the cirrus sac, and aporal lobes reaching the level of the vagina. Acanthobothrium puntarenasense n. sp. in D. longus, distinctive in having a very small scolex relative to the width of the cephalic peduncle similar to Acanthobothrium microcephalum, has bothridial hooks averaging 111 microns (lateral) and 117 microns (medial) long, an average of 50 testes per proglottis, cirrus sacs averaging 170 microns long, and asymmetrical ovarian lobes with poral lobes reaching the posterior margin of the cirrus sac, and aporal lobes reaching the middle of the cirrus sac. Acanthobothrium vargosi in D. longus, most similar to Acanthobothrium brevissime, Acanthobothrium tasajerasi, Acanthobothrium urotrygoni, and Acanthobothrium campbelli, has bothridial hooks averaging 130 microns (lateral) and 133 microns (medial) long, an average of 25 testes per proglottis arranged in 2 single rows, cirrus sacs averaging 91 microns long, and asymmetrical ovarian lobes with poral lobes reaching the posterior margin of the cirrus sac, and aporal lobes reaching the middle of the cirrus sac. Acanthobothrium campbelli n. sp. in Urotrygon chilensis, most similar to a A. brevissime, A. Vargasi, A. lineatum, A. himanturi, and A. urotrygoni, has bothridial hooks averaging 108 microns (lateral) and 111 microns (medial) long, an average of 19 tester per proglottis arranged in 2 nearly linear rows, cirrus sacs averaging 74 microns long, and asymmetrical ovarian lobes with the poral lobe reaching the posterior margin of the cirrus sac, and the aporal lobes reaching the middle of the cirrus sac.

摘要

在来自哥斯达黎加尼科亚湾的黄貂鱼体内发现了五种新的棘头绦虫属物种。长吻黄貂鱼体内的哥斯达黎加棘头绦虫新种，与百合棘头绦虫、线条棘头绦虫和希曼图棘头绦虫最为相似，其吸铗钩平均长125微米（外侧）和145微米（内侧），每个节片平均有47个睾丸，阴茎囊平均长187微米，卵巢叶不对称，有孔叶到达阴茎囊后缘，无孔叶到达阴茎囊中部。长吻黄貂鱼体内的西马里棘头绦虫新种，与百合棘头绦虫、线条棘头绦虫、希曼图棘头绦虫、哥斯达黎加棘头绦虫和半泡棘头绦虫最为相似，其吸铗钩平均长117微米（外侧）和121微米（内侧），每个节片平均有50个睾丸，阴茎囊平均长164微米，卵巢叶不对称，有孔叶到达阴茎囊后缘，无孔叶到达阴道水平。长吻黄貂鱼体内的蓬塔雷纳斯棘头绦虫新种，其特点是相对于头节柄宽度而言头节非常小，与小头棘头绦虫相似，其吸铗钩平均长111微米（外侧）和117微米（内侧），每个节片平均有50个睾丸，阴茎囊平均长170微米，卵巢叶不对称，有孔叶到达阴茎囊后缘，无孔叶到达阴茎囊中部。长吻黄貂鱼体内的瓦尔戈西棘头绦虫，与极短棘头绦虫、塔萨赫拉西棘头绦虫、尾孔黄貂鱼棘头绦虫和坎贝尔棘头绦虫最为相似，其吸铗钩平均长130微米（外侧）和133微米（内侧），每个节片平均有25个睾丸，排成2单行，阴茎囊平均长91微米，卵巢叶不对称，有孔叶到达阴茎囊后缘，无孔叶到达阴茎囊中部。智利黄貂鱼体内的坎贝尔棘头绦虫新种，与极短棘头绦虫、瓦尔戈西棘头绦虫、线条棘头绦虫、希曼图棘头绦虫和尾孔黄貂鱼棘头绦虫最为相似，其吸铗钩平均长108微米（外侧）和111微米（内侧），每个节片平均有19个睾丸，排成2近直线行，阴茎囊平均长74微米，卵巢叶不对称，有孔叶到达阴茎囊后缘，无孔叶到达阴茎囊中部。