Biometry of Bagrid Fish Mystus pelusius (Solander, 1794) (Siluriformes: Bagridae) from Al-Hammar Marsh, Southern Iraq
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A total of 41 specimens of bagrid fish Mystus pelusius (Solander, 1794), were collected from Al-Hammar marsh, southern Iraq during December 2011 till April 2012. Meristic and morphometric characters are given. Dorsal fin containing one strong spine and 6–8 rays, anal fin 9 -12 rays, total gill raker 14 on first gill arch. dorsal fin base length 14.3 -16.1, Anal fin base length 9.8–13, inter dorsal -adipose fin distance 3.7–6.7, Adipose fin base length 39.3–45.2, Caudal peduncle length 19.9–26.2, Pre Anus length 49.2–55.1, all in percentage of standard length. Head width 65.19–78.2, post orbital length 42.23–47.88, eye diameter16.89–19.45, dorsal spine length 71.75–92.18, maxillary barble 201.34 -245.83, and nasal barble 35.43–54.2 all in percentage of head length. Total number of vertebrae 44–46.
Mystus, siluriformes, morphometric, meristic, fresh water, Iraq.