blockii, Haplochilus panchax var. Arnold [J. P.] 1911:672, Fig. 3 [Wochenschrift für Aquarien- und Terrarienkunde v. 8 (no. 46); ref. 22856] Cochin, India. No types known. Type catalog: Fricke 1995:4 [ref. 28100], Fricke 2005:12 [ref. 29864] as no types at SMNS and no neotype designation. Original as var. Blockii. •Valid as Aplocheilus blockii Arnold 1911 -- (Radda 1974:2, 6 [ref. 30318], Parenti 1981:471 [ref. 7066] as blochi, Talwar & Jhingran 1991:750 [ref. 20764] as blocki, Indra 1993:187 [ref. 24009], Rema Devi & Ilango 1993:247 [ref. 24017], Indra 1994:419 [ref. 24015] as blochii, Rema Devi et al. 1996:139 [ref. 24021], Seegers 1997:16 [ref. 23895], Rema Devi et al. 1999:160 [ref. 24758] as blochi, Menon 1999:267 [ref. 24904], Lazara 2001:49 [ref. 25711], Mirza 2003:22 [ref. 27265], Katwate et al. 2018:170 [ref. 35809], Çiçek et al. 2023:46 [ref. 40326]). Current status: Valid as Aplocheilus blockii Arnold 1911. Aplocheilidae. Distribution: South Asia: southern India and Sri Lanka. Introduced in Afghanistan. Habitat: freshwater.