Dorsal spines (total): 0; Dorsal soft rays (total): 10; Analspines: 0; Analsoft rays: 21 - 23; Vertebrae: 36 - 37
5.7 cm SL (male/unsexed; (Ref. 89102))
Alestopetersius conspectus, is distinguished from A. smykalai, A. leopoldianus, A. nigropterus, A. caudalis, and A. sp. "mbuji" in the possession of 12 (vs. 10) circumpeduncular scales (Ref. 89102). It is readily distinguished from A. brichardi, A. compressus, A. hilgendorfi, and A. tumbensis in the possession of a caudal-fin pigmentation consisting of a median black band extending to the caudal-fin margin and flanked by dense black bands in both upper and lower fin lobes (Ref. 89102). Alestopetersius bifasciatus, which shares similar caudal fin pigmentation, is distinguished from A. conspectus by the absence of a broad mid-lateral band on the body, and in tooth morphology (Ref. 89102). Mouth terminal, lower jaw prominent and slightly prognathous (Ref. 89102). Premaxilla with two teeth in outer row, each bearing five cusps, positioned opposite interspaces between and alternating with, four inner row teeth, each bearing 6-8 cusps; outermost premaxillary tooth is markedly compressed and elongate with 7 or 8 small evenly sized cusps and a low median cusp; dentary with four teeth in outer row, each bearing 6 or 7 cusps, outermost tooth smallest in jaw; no inner row teeth on dentary (Ref. 89102).In life all individuals are iridescent silver with greenish-copper reflections anterolaterally, becoming bluish on flanks and caudal peduncle; mid-lateral band is obscured anteriorly on body but clearly marked on caudal peduncle (Ref. 89102).