Yooyen Thanapon, Moravec František, Wongsawad Chalobol
Department of Biology, Faculty of Science, Chiang Mai University, Thailand.
J Parasitol. 2011 Oct;97(5):931-8. doi: 10.1645/GE-2806.1. Epub 2011 May 11.
Based on light and scanning electron microscopical examinations, 2 new morphologically similar species of the subgenus Procamallanus (Spirocamallanus) (Nematoda: Camallanidae) possessing 2 caudal spikes are described from the intestine of marine perciform fishes from the Gulf of Thailand off the Thai coast, i.e., Procamallanus (S.) rigbyi n. sp. from Otolithes ruber (Bloch and Schneider) (Sciaenidae) and Procamallanus (S.) similis n. sp. from Sillago sihama (Forsskål) (Sillaginidae). The former species is mainly characterized by the presence of 13-14 spiral ridges in the buccal capsule, location of deirids at about mid-way between the buccal capsule and the nerve ring, and by the length of the right spicule (315-360 µm), whereas the latter is characterized by 10-12 spiral ridges, deirids situated at short distance posterior to the buccal capsule, and the right spicule 435-492 µm long. Because of their inadequate descriptions, most species of this subgenus reported from marine fishes of the Indo-Pacific region are considered species inquirendae. Spirocotyle Yasmin and Bilqees, 2007 is considered a junior synonym of Procamallanus Baylis, 1923. Since Procamallanus (S.) otolithi Ashraf, Farooq and Khanum, 1977 , P. (S.) otolithi (Gupta and Garg, 1986 ) and P. (S.) otolithi (Yasmin and Bilqees, 2007 ) are junior homonyms to P. (S.) otolithi Bilqees and Kazmi, 1974, they are renamed Procamallanus (S.) pakistanensis n. nom., Procamallanus (S.) problematicus n. nom., and Procamallanus (S.) incognitus n. nom., respectively (all species inquirendae). Procamallanus rigbyi and P. similis are the first nominal species of this genus reported from marine fishes off the coast of Thailand.
基于光学显微镜和扫描电子显微镜检查，从泰国湾泰国海岸附近的海洋鲈形目鱼类肠道中描述了2个形态相似的新物种，隶属于原卡马线虫属（螺旋卡马线虫亚属）（线虫纲：卡马线虫科），具有2根尾刺，即来自红牙鰕虎鱼（布洛赫和施奈德）（石首鱼科）的里氏原卡马线虫（螺旋卡马线虫亚属）新种，以及来自多鳞鱚（福斯科尔）（鱚科）的相似原卡马线虫（螺旋卡马线虫亚属）新种。前一个物种的主要特征是口腔囊中有13 - 14条螺旋嵴，排泄孔位于口腔囊和神经环之间的大约中间位置，以及右交合刺的长度（315 - 360微米），而后一个物种的特征是有10 - 12条螺旋嵴，排泄孔位于口腔囊后方短距离处，右交合刺长435 - 492微米。由于描述不充分，从印度 - 太平洋地区海洋鱼类中报道的该亚属大多数物种被视为待定物种。2007年的雅斯敏螺旋线虫属被认为是1923年贝利斯原卡马线虫属的次异名。由于1977年的耳石原卡马线虫（螺旋卡马线虫亚属）、1986年的耳石原卡马线虫（古普塔和加尔格）以及2007年的耳石原卡马线虫（雅斯敏和比尔基斯）是1974年比尔基斯和卡兹米的耳石原卡马线虫（螺旋卡马线虫亚属）的次同物异名，它们分别被重新命名为巴基斯坦原卡马线虫（螺旋卡马线虫亚属）新名、有问题原卡马线虫（螺旋卡马线虫亚属）新名和未知原卡马线虫（螺旋卡马线虫亚属）新名（均为待定物种）。里氏原卡马线虫和相似原卡马线虫是该属从泰国海岸附近海洋鱼类中报道的首批定名物种。
