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FIGURE 2 in Loaches of Homatula (Teleostei: Nemacheilidae) from the upper Salween River in Yunnan, China with description of three new species

FIGURE 2. Relationship between anterior end of adipose crest and anal-fin base of Homatula. (A) H. anteridorsalis, SWFC 1610019, paratype, 108.1 mm SL; (B) H. cryptoclathrata, SWFC 1002001, holotype, 138.1 mm SL; (C) H. nigra, SWFC 1901005, holotype, 99.8 mm SL; (D) H. pycnolepis, SWFC 0612085, 99.6 mm SL; (E) H. laxiclathra, SWFC 1810010, 97.0 mm SL); (F) H. nanpanjiangensis, SWFC 1903001, 97.1 mm SL.

FIGURE 8 in Loaches of Homatula (Teleostei: Nemacheilidae) from the upper Salween River in Yunnan, China with description of three new species

FIGURE 8. Distribution map of the densely-scaled group of Homatula. A symbol may represent several adjacent localities.

FIGURE 1 in Loaches of Homatula (Teleostei: Nemacheilidae) from the upper Salween River in Yunnan, China with description of three new species

FIGURE 1. Dark patterns on the flank of Homatula. (A) Densely barred pattern; (B) sparsely barred pattern; (C) irregular pattern.

FIGURE 4 in Loaches of Homatula (Teleostei: Nemacheilidae) from the upper Salween River in Yunnan, China with description of three new species

FIGURE 4. Ventral view of pelvic plate in Homatula. (A) H. cryptoclathrata, SWFC 1002001, holotype, 138.1 mm SL; (B) H. pycnolepis, SWFC 0612085, 99.6 mm SL (FP: pair of free protrusions between pelvic fins).

FIGURE 3 in Loaches of Homatula (Teleostei: Nemacheilidae) from the upper Salween River in Yunnan, China with description of three new species

FIGURE 3. Homatula pycnolepis, (A) holotype, IHB 814045, 118.8 mm SL; China: Yunnan: Dali: Jianchuan Co. (photographed by E Zhang); (B). SWFC 0612085, 99.6 mm SL; China: Yunnan: Dali: Yunlong Co.

FIGURE 6. Homatula anteriordorsalis, SWFC 1610006 in Loaches of Homatula (Teleostei: Nemacheilidae) from the upper Salween River in Yunnan, China with description of three new species

FIGURE 6. Homatula anteriordorsalis, SWFC 1610006, holotype, 121.6 mm SL; China: Yunnan: Baoshan City: Longyang District: Lujiang Town: Bingmen Village.

FIGURE 5 in Loaches of Homatula (Teleostei: Nemacheilidae) from the upper Salween River in Yunnan, China with description of three new species

FIGURE 5. Gill openings of Homatula. (A) Larger gill opening; upper angle aligned with middle point of eye (H. pycnolepis, SWFC 0612085, 99.6 mm SL); (B) smaller gill opening; upper angle level with lower edge of eye (H. cryptoclathrata, SWFC 1610006, holotype, 121.6 mm SL).

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A survey of gyrodactylid parasites on the fins of Homatula variegata in central China

In this study, two parasites on the fins of Homatula variegata were recorded from March to September 2016. A dissection mirror was used to examine the distribution and quantity of the ectoparasitic Gyrodactylus sp. and Paragyrodactylus variegatus on the host Homatula variegata in different seasons. The present study explored possible explanations for the site specificity of gyrodactylid parasites in 442 Homatula variegata infected with 4307 Gyrodactylus sp. (species identification is incomplete, only characterized to the genus level) and 1712 Paragyrodactylus variegatus. These two gyrodactylid parasites were collected from fish fins, and the fish were harvested in China's Qinling Mountains.The results indicated that the highest number of Gyrodactylus sp., which was numerically the dominant species, appeared on the fish fins in April, while the highest number of Paragyrodactylus variegatus was found on the fish fins in March. The two parasite species appeared to be partitioned spatially, with Gyrodactylus sp. occurring more frequently on pectoral and pelvic fins, and P. variegatus occurring more frequently on caudal fins. However, Gyrodactylus sp. appeared to occur on fish of all lengths, while P. variegatus tended to occur more abundantly on shorter fish rather than on longer fish. At lower Gyrodactylus sp. infection levels (<100), the pelvic and pectoral fins were the main locations of attachment, followed by the dorsal fin. For infections of more than 100 parasites, more samples of Gyrodactylus sp. were located on the pectoral fin. For a low number of Paragyrodactylus variegatus infections (<100), the pelvic and pectoral fins were the preferred locations of attachment, followed by the caudal fin. Between April and September, there were many monogenean parasites on fish fins, and the fish size was within the range of 5–10 cm. However, when a fish was longer than 10 cm long, the number of parasites on its fins greatly decreased.

FIGURE 5 in A new species of Homatula from the Red River drainage in Yunnan based on morphological and genetic data (Teleostei: Nemacheilidae)

FIGURE 5. Scatter plots of the first and second (left) and second and third (right) principal components (PCs) of pooled morphometrics data of tYpe specimens of Homatula coccinocola (n=5, 51.1–99.6 mm SL, solid circles) and H. change (n=18, 40.2–107.6 mm SL, hollow circles).

FIGURE 1. Homatula coccinocola, KIZ 2011002847 in A new species of Homatula from the Red River drainage in Yunnan based on morphological and genetic data (Teleostei: Nemacheilidae)

FIGURE 1. Homatula coccinocola, KIZ 2011002847, holotYpe, 99.6 mm SL; Yunnan: Honghe; Tengtiaojiang River.

FIGURE 3 in A new species of Homatula from the Red River drainage in Yunnan based on morphological and genetic data (Teleostei: Nemacheilidae)

FIGURE 3. Map of southeastern Yunnan; 1, Mekong affluent; 2, Black River; 3, Red River. SYmbol indicates the tYpe localitY of Homatula coccinocola.

FIGURE 4 in A new species of Homatula from the Red River drainage in Yunnan based on morphological and genetic data (Teleostei: Nemacheilidae)

FIGURE 4. Neighbor Joining (NJ) tree of Homatula. Two species of Schistura were treated as an outgroup. Numbers above the branches represent bootstrap values. Values below 50% are omitted.

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A survey of gyrodactylid parasites on the fins of Homatula variegata in central China

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FIGURE 2. Homatula coccinocola, KIZ 2011002847 in A new species of Homatula from the Red River drainage in Yunnan based on morphological and genetic data (Teleostei: Nemacheilidae)

FIGURE 2. Homatula coccinocola, KIZ 2011002847, holotYpe, 99.6 mm SL; head, ventral view.

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FIGURE 10 in Loaches of Homatula (Teleostei: Nemacheilidae) from the upper Salween River in Yunnan, China with description of three new species

FIGURE 10. Homatula nigra, (A–B, D) SWFC 1901005, holotype, 99.8 mm SL; (C) SWFC 0411007, paratype, 87.4 mm SL, China: Yunnan: Baoshan City: Changning County: Gengga Town: Xiangshui Village.

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FIGURE 9. Homatula cryptoclathrata, SWFC 1002001 in Loaches of Homatula (Teleostei: Nemacheilidae) from the upper Salween River in Yunnan, China with description of three new species

FIGURE 9. Homatula cryptoclathrata, SWFC 1002001, holotype, 138.1 mm SL; China: Yunnan: Baoshan City: Changning Co.: Gengga Town: Mangping Village.

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FIGURE 7 in Loaches of Homatula (Teleostei: Nemacheilidae) from the upper Salween River in Yunnan, China with description of three new species

FIGURE 7. Mouths of Homatula. (A) H. anteridorsalis, SWFC 1610006, holotype, 121.6 mm SL; (B) H. cryptoclathrata, SWFC 1002001, holotype, 138.1 mm SL; (C) H. nigra, SWFC 1901005, holotype, 99.8 mm SL; (D) H. pycnolepis, SWFC 0612085, 99.6 mm SL.