Petrocephalus steindachneri Fowler 1958

Diagnosis: Body depth 29.4-32.8% of standard length; head length 27.2-27.4% of standard length; length of snout to centre of eye 31.1-34.3% of head length; length of snout to posterior orbital rim of eye 43.4-43.8% of head length; predorsal length 62.3-64.1% of standard length; preanal length 60.1-61.6% of standard length; dorsal fin length 17.3-20.6% of standard length; anal fin length 22.2-25.2% of standard length; distance dorsal fin origin to end of caudal peduncle 40.2-43.2% of standard length; length of caudal peduncle 19.5-21.1% of standard length; depth of caudal peduncle 28.5-31.3% of its length (Ref. 91771).

Dorsal spines (total): 0; Dorsal soft rays (total): 22 - 27; Analspines: 0; Analsoft rays: 26 - 31

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Petrocephalus steindachneri Petrocephalus generoko animalia da. Arrainen barruko Mormyridae familian sailkatzen da.

施氏岩頭長頜魚，為輻鰭魚綱骨舌魚目象鼻魚科的其中一種，分布於非洲坦尚尼亞Rufuji河流域，體長可達6.6公分，棲息在底層水域，生活習性不明。