During 9–10 February 2018 and 21–22 February 2020, 7 adult Blue Suckers, Cycleptus elongatus, were collected by hoop nets from the Red River, Little River County (n = 3), and the Black River, Lawrence County (n = 4), Arkansas, and their gills, gallbladders, fins, integument, other major organs, and musculature were examined for myxozoans. All 7 (100%) were infected with an unknown species of gill-infecting Myxobolus sp. Twenty formalin-fixed plasmodia (cysts) of Myxobolus cloutmani n. sp. were elliptoidal, 407 μm long × 270 μm wide. Formalin-fixed myxospores were orbicular to broadly elliptoidal, 8.7 μm long × 7.8 μm wide. Two polar capsules were pyriform and subequal in size, extending over halfway in the myxospore. The larger polar capsule was 5.5 μm long × 3.1 μm wide, while the shorter was 5.1 × 2.9 μm. A coiled polar filament possessed 5 or 6 coils. The myxospore was 3.7 μm thick in sutural view, with a distinct sutural ridge. Qualitative and quantitative morphological data were from formalin-fixed as well as ethanol-preserved spores, while molecular data consisted of a 2,010 base pair sequence of the partial 18S ribosomal RNA gene and a 2,502 base pair sequence of the partial 28S ribosomal RNA gene. Phylogenetic analysis grouped M. cloutmani n. sp. with the other catostomid-infecting myxobolids. This is the first myxozoan reported from C. elongatus.

2018年和21-22 2月9日至10日2020年2月期间，7成人蓝吸盘，Cycleptus细长，被来自红河，小江县（N = 3），以及黑河，劳伦斯县环网收集（N = 4), 阿肯色州，对它们的鳃、胆囊、鳍、外皮、其他主要器官和肌肉组织进行了粘虫检查。所有 7 只（100%）都感染了一种未知的鳃感染Myxobolus sp。20 个福尔马林固定的Myxobolus cloutmani疟原虫（囊肿）n. sp. 椭圆形，长 407 μm × 宽 270 μm。福尔马林固定的粘孢子呈圆形至宽椭圆形，长 8.7 μm × 宽 7.8 μm。两个极性荚膜呈梨形且大小不等，在粘孢子中延伸超过一半。较大的极囊长 5.5 μm × 宽 3.1 μm，较短的极囊为 5.1 × 2.9 μm。盘绕的极灯丝具有 5 或 6 个线圈。粘孢子在缝合线视图中厚 3.7 μm，具有明显的缝合脊。定性和定量形态学数据来自福尔马林固定和乙醇保存的孢子，而分子数据包括部分18S核糖体 RNA 基因的 2,010 碱基对序列和部分28S核糖体 RNA 基因的 2,502 碱基对序列。系统发育分析分组M. cloutmanin. sp. 与其他 catostomid 感染粘液。这是从C. elongatus报道的第一个粘液动物。