Pereira Aldenice N, Timi Juan T, Lanfranchi Ana L, Luque José L
Curso de Pós-Graduação em Ciências Veterinárias and Departamento de Parasitologia Animal, Universidade Federal Rural do Rio de Janeiro, Seropédica, Brasil.
Acta Parasitol. 2012 Sep;57(3):323-8. doi: 10.2478/s11686-012-0032-7. Epub 2012 Aug 9.
A new species of Colobomatus Hesse, 1873 is described from pores of the cephalic sensory system and nostrils of Argentine goatfish, Mullus argentinae Hubbs et Marini, 1933 (Perciformes: Mullidae), living along the southwestern Atlantic coast. The fish were collected at different latitudes, stretching from the State of Rio de Janeiro in the north, through Santa Catarina, Rio Grande do Sul (Brazil) to of Mar del Plata (Argentina) in the south. The prevalence of the infection ranged from 42% through 84%. The new species look alike to two other species, parasites of mullids (C. steenstrupi and C. mulli) particularly in the body shape and the number, shape, and ornamentation of cephalic, thoracic, and genital processes. The new species, however, can be readily distinguished by having the central cephalic process shorter than lateral ones, the later being bilobed at tip forked, and a relatively larger abdomen. Furthermore, C. steenstrupi possesses relatively wider trunk processes with rounded tips, a short abdominal dorsal process, and attains a larger size (up to 3.6 mm). C. mulli also differs by having all body processes with forked tips, and relatively shorter sixth thoracic somite and abdominal segments 1-3. This is the third record of a species of Colobomatus in South American Atlantic waters.
1873年的科洛博马图斯属（Colobomatus Hesse）的一个新物种是根据阿根廷羊鱼（Mullus argentinae Hubbs et Marini，1933年，鲈形目：羊鱼科）头部感觉系统的小孔和鼻孔描述的，该羊鱼生活在西南大西洋沿岸。这些鱼在不同纬度被采集，范围从北部的里约热内卢州，经过圣卡塔琳娜州、南里奥格兰德州（巴西）到南部的马德普拉塔（阿根廷）。感染率从42%到84%不等。这个新物种与另外两个物种相似，它们都是羊鱼科的寄生虫（C. steenstrupi和C. mulli），特别是在身体形状以及头部、胸部和生殖突起的数量、形状和纹饰方面。然而，这个新物种很容易通过以下特征区分：中央头部突起比侧面的短，侧面的在顶端分叉处呈双叶状，且腹部相对较大。此外，C. steenstrupi的躯干突起相对更宽，顶端圆形，腹部背侧突起短，且体型更大（可达3.6毫米）。C. mulli的不同之处还在于其所有身体突起的顶端都分叉，以及第六胸节和腹部第1 - 3节相对较短。这是南美大西洋水域科洛博马图斯属物种的第三次记录。
