Revision of the cichlid fish genus Gnathochromis (Teleostei: Cichlidae) from Lake Tanganyika with the description of a new genus Jabarichromis gen. nov. Author Haefeli, Anja 0009-0005-6206-1532 Zoological Institute, Department of Environmental Sciences, University of Basel, Switzerland. anja.haefeli@unibas.ch Author Schedel, Frederic D. B. Zoological Institute, Department of Environmental Sciences, University of Basel, Switzerland. & Faculty of Biology, LMU Munich, Munich, Germany. Author Ronco, Fabrizia Natural History Museum Oslo, University of Oslo, Norway. Author Indermaur, Adrian 0000-0002-3048-8911 Zoological Institute, Department of Environmental Sciences, University of Basel, Switzerland. a.indermaur@unibas.ch Author Salzburger, Walter 0000-0002-9988-1674 Zoological Institute, Department of Environmental Sciences, University of Basel, Switzerland. walter.salzburger@unibas.ch text Zootaxa 2024 2024-02-14 5410 3 434 450 https://www.mapress.com/zt/article/download/zootaxa.5410.3.10/52902 journal article 288367 10.11646/zootaxa.5410.3.10 90ec5c2b-814e-488f-b7d4-1797ee3e9017 1175-5326 10657342 1A26544E-7339-494B-A58A-B559B2B69C99

TABLE 1. Ranges of diagnostically relevant traits for Jabarichromis gen. nov. (see Table 2 for abbreviations) for all taxa belonging to the Tropheini, G. permaxillaris, all species included from the Haplochromini and T. benthicola. The far-right column indicates the number of individuals inspected per species.

Species	TGR	SHL	SULL	SLDF	SLDSULL	PercR	PMH in % of HL	LJL in % of SL	PMH in % of SL	PML in % of HL	SL in cm	n
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Jabarichromis gen. nov. pfefferi	15 - 18	29 - 31	20 - 23	5 - 6	3	13 - 15	46.37 - 50.6	13.15 - 15.48	56.03 - 61.86	30.17 - 36.08	7.41 - 11.75	10
Gnathochromis permaxillaris	24 - 27	33 - 34	25 - 30	4 - 5	2 - 3	15 - 16	58.29 - 63.29	15.6 - 17.29	51.09 - 54.84	41.36 - 47.79	10.86 - 13.02	10
Shuja horei	17 - 19	27 - 30	20 - 23	5 - 7	2	14 - 15	30.5 - 37.21	11.78 - 15.78	50.7 - 57.47	23.06 - 36.05	5.49 - 10.37	10
Interochromis loocki	13 - 16	29 - 30	23 - 25	5 - 6	2 - 3	15 - 16	20.61 - 25.62	7.08 - 9.81	56.85 - 61.37	22.91 - 32.28	6.38 - 9.79	10
Limnotilapia dardennii	16 - 17	32 - 34	25 - 27	5 - 7	2 - 3	15 - 16	26.34 - 29.26	7.5 - 8.9	57.06 - 59.46	21.25 - 27.06	6.97 - 18.22	9
Lobochilotes labiatus	22 - 27	30 - 33	22 - 25	7 - 9	3	16 - 17	36.89 - 49.31	9.4 - 13.37	54.29 - 59.51	23.1 - 33.18	7 - 13.76	9
Petrochromis ephippium	13 - 16	31 - 33	24 - 25	7	3	15 - 16	22.8 - 24.64	5.28 - 6.92	59.53 - 62.51	28.68 - 35.18	7.27 - 12.49	9
Petrochromis famula	14 - 19	29 - 33	22 - 24	4 - 7	3	14 - 16	16.06 - 24.07	6.26 - 8.97	59.39 - 63.55	32.4 - 37.41	6.65 - 13.19	10
Petrochromis fasciolatus	16 - 18	30 - 32	23 - 25	5 - 6	3	15 - 16	16.84 - 20.32	8.11 - 10.1	59.67 - 63.46	30.68 - 38.27	6.85 - 13.99	10
Petrochromis horii	14 - 17	30 - 34	23 - 25	7 - 9	3 - 4	15 - 16	17.11 - 19.6	6.14 - 7.7	59.53 - 63.03	27.28 - 35.45	7.24 - 9.1	10
Petrochromis macrognathus	15 - 17	31 - 34	23 - 26	5 - 8	3 - 4	16 - 17	23.85 - 28.05	5.94 - 7.21	57.98 - 61.04	30.32 - 36.19	10.16 - 16.23	10
Petrochromis orthognathus	16 - 20	29 - 31	22 - 23	5 - 7	2 - 3	14 - 16	19.65 - 25.43	6.28 - 8.17	60.97 - 63.35	26.05 - 32.46	7.24 - 10.17	10
Petrochromis polyodon	14 - 18	28 - 32	22 - 24	5 - 7	2 - 3	15 - 17	22.21 - 26.2	5.75 - 7.97	55.79 - 59.26	31.22 - 40.68	6.55 - 13.78	9
Petrochromis sp. "giant"	16 - 18	33 - 35	24	7 - 8	3 - 4	16 - 17	23.48 - 24.16	5.66 - 6.55	60.32 - 61.77	34.23 - 36.16	15.95 - 20.32	3
Petrochromis sp. "kazumbae"	13 - 17	31 - 33	21 - 25	5 - 8	3	15 - 16	20.76 - 24.24	5.27 - 7.58	58.82 - 60.57	28.48 - 38.93	8.16 - 15.19	10
Petrochromis sp. "kipili brown"	14 - 17	31 - 35	24 - 27	7 - 11	3 - 4	15 - 16	18.16 - 20.83	5.73 - 6.9	61.48 - 65.04	30.89 - 34.74	9.81 - 18.12	10
Petrochromis sp. "macrognathus rainbow"	13 - 19	32 - 35	23 - 26	6 - 8	3	15 - 16	21.42 - 26.16	5.78 - 8.25	59.35 - 62.08	30.27 - 36.64	13.29 - 17.5	10
Petrochromis sp. "moshi yellow"	12 - 16	31 - 34	21 - 25	6 - 8	3	14 - 16	20.59 - 23.9	5.93 - 6.92	58.89 - 62.9	34.69 - 38.3	11.49 - 15.39	10
Petrochromis sp. "orthognathus ikola"	17 - 20	29 - 31	21 - 24	5 - 7	2 - 3	15 - 16	20.01 - 25.28	6.31 - 7.67	59.59 - 63.43	23.99 - 31.75	8.93 - 13.35	10
Petrochromis sp. "polyodon texas"	15 - 17	31 - 34	20 - 27	5 - 8	3	15 - 17	21.39 - 26.43	5.4 - 6.4	58.87 - 61.61	34.47 - 38.27	12.87 - 21.8	10
Petrochromis sp. "red"	12 - 16	30 - 34	23 - 25	6 - 7	2 - 3	15 - 16	12.99 - 19.7	6.29 - 8.33	59.43 - 63.75	35.96 - 40.14	10.33 - 16.83	10
Petrochromis trewavasae	13 - 18	31 - 32	23 - 25	6 - 9	3	15 - 16	18.66 - 23.6	5.68 - 9.95	60.44 - 63.52	34.3 - 40.04	9.21 - 14.06	10
Pseudosimochromis babaulti	9 - 13	27 - 30	21 - 24	4 - 5	2	15 - 16	22.82 - 26.03	7.05 - 8.63	58.53 - 61.68	18.79 - 22.74	4.95 - 6.45	10
Pseudosimochromis babaulti (South)	9 - 14	29 - 30	21 - 24	4 - 6	2	16	22.58 - 28.43	6.22 - 7.7	57.58 - 62.87	20.88 - 26.85	5.55 - 7.94	10
Pseudosimochromis curvifrons	14 - 17	29 - 31	21 - 25	4 - 6	2 - 3	14 - 17	33.34 - 36.33	5.86 - 7.53	63.56 - 68.77	15.31 - 18	7.12 - 9.45	10
Pseudosimochromis marginatus	12 - 15	28 - 30	22 - 24	4 - 5	2	16 - 17	21.34 - 24.97	6.35 - 8.99	57.53 - 61.2	18.7 - 25.67	5.24 - 7.68	10
Pseudosimochromis marginatus (North)	11 - 15	28 - 30	21 - 23	4 - 5	2	16	22.04 - 25.39	6.77 - 9.12	58.01 - 64.68	19.07 - 22.17	5.44 - 8.55	10
Simochromis diagramma	13 - 18	29 - 32	22 - 25	5 - 6	2 - 3	16 - 17	25.08 - 29.61	7.02 - 8.51	59.15 - 64.25	18.32 - 28.13	6.42 - 11.93	10
Tropheus brichardi	14 - 17	28 - 30	22 - 23	5 - 6	1 - 2	16	25.95 - 31.78	6.41 - 7.2	64.45 - 68.47	13.46 - 19.14	4.62 - 6.82	10
Tropheus duboisi	11 - 16	30 - 33	22 - 23	4 - 6	1	15	30.08 - 34.05	7.29 - 8.6	64.06 - 67.79	15.51 - 21.12	6.27 - 9.66	10
Tropheus kasabae	14 - 17	29 - 31	22 - 25	4 - 6	1 - 2	15 - 16	20.16 - 37.68	4.75 - 10.05	63.78 - 66.53	16.63 - 27.84	5.73 - 8.06	11
Tropheus moorii	14 - 18	30 - 31	21 - 23	4 - 6	2	14 - 16	26.09 - 29.96	5.28 - 7.11	65.1 - 67.79	16.64 - 22.13	6.55 - 8.39	10
Tropheus polli	14 - 16	30 - 32	23 - 24	5 - 7	2 - 3	15 - 16	28.08 - 31.76	5.89 - 7.61	66.6 - 70.28	14.39 - 20.29	6.8 - 9.09	10
Tropheus sp. "black"	15 - 17	29 - 30	21 - 25	4 - 6	1 - 2	16 - 17	25.39 - 28.58	5.56 - 7.16	62.82 - 67.01	15.47 - 20.16	4.16 - 7.67	10
Tropheus sp. "brichardi kipili"	14 - 17	29 - 30	22 - 23	4 - 7	1 - 2	14 - 16	27.9 - 31.84	5.74 - 6.92	64.53 - 68.85	10.76 - 16.01	6.21 - 9.54	10
Tropheus sp. "kirschfleck"	14 - 17	29 - 30	23 - 25	5 - 6	1 - 2	16 - 17	26.16 - 29.88	5.32 - 7.48	65.31 - 68.85	14.82 - 20.01	6.64 - 8.87	10
Tropheus sp. "lukuga"	14 - 16	29 - 30	22 - 24	4 - 6	2	16	25.29 - 31.44	6.78 - 8.09	64.82 - 67.69	15.36 - 18.39	6.89 - 9.41	10
Tropheus sp. "lunatus"	14 - 16	20 - 30	22 - 24	5 - 7	2 - 3	16 - 17	27.75 - 30.64	5.54 - 8.25	65.36 - 68.49	16.35 - 18.43	6.59 - 8.84	10
Tropheus sp. "mpimbwe"	14 - 16	30 - 31	22 - 24	5 - 7	2	15	27.19 - 33.1	4.55 - 7.43	64.5 - 67.76	15.95 - 19.55	8.11 - 10.76	10
Tropheus sp. "murago"	14 - 16	29 - 32	23 - 24	5 - 6	2	14 - 16	27.54 - 31.79	5.64 - 10.1	64.91 - 69.57	14.93 - 19.19	7.69 - 10.69	10
Tropheus sp. "red"	14 - 17	29 - 31	22 - 23	3 - 5	2	15 - 16	27.09 - 30	5.91 - 9.52	65.79 - 70.38	12.34 - 18.54	7.45 - 8.67	10
Ctenochromis pectoralis	10 - 13	24 - 29	18 - 21	3 - 7	1 - 2	13 - 14	26.05 - 30.96	10.33 - 13.07	50.07 - 53.44	24.38 - 35.38	4.43 - 6.72	7
Haplochromis cf. bakongo	11 - 14	24 - 29	19 - 21	3 - 5	1 - 2	14	30.24 - 36.18	10.43 - 14.83	50.67 - 55.09	25.52 - 38.15	4.2 - 5.39	4
Haplochromis demeusii	10 - 13	24 - 25	16 - 19	3 - 5	1 - 2	14 - 16	29.92 - 37.77	11.03 - 14.34	51.79 - 59.63	25.04 - 34.57	3.85 - 7.31	11
Haplochromis cf. demeusii	12	24 - 26	18 - 19	4	2	14 - 15	33.95 - 35.82	12.61 - 12.85	56.38 - 56.95	30.21 - 35.26	6.71 - 7.14	2
Haplochromis fasciatus	11 - 14	24 - 28	16 - 21	4 - 5	1 - 2	13 - 14	29.31 - 37.88	8.02 - 13.62	53.14 - 59.7	25.5 - 33.04	3.51 - 9.46	8
Haplochromis luluae	11 - 16	25 - 26	18 - 20	4 - 5	1 - 2	14 - 16	27.73 - 34.52	10.53 - 12.29	51.48 - 54.78	18.11 - 29.62	2.95 - 6.29	9
Haplochromis oligacanthus	11 - 14	24 - 26	18 - 20	4 - 5	1 - 2	14 - 15	28.4 - 36.92	13.49 - 14.89	52.29 - 54.56	25.44 - 32.05	3.85 - 5.71	7
Haplochromis polli	12 - 16	26 - 27	19 - 20	4 - 5	2	15 - 17	30.93 - 37.79	10.74 - 11.75	54.18 - 60.18	28.6 - 40.38	4.45 - 7.76	6
Haplochromis cf. polli	11 - 16	25 - 28	19 - 22	3 - 5	1 - 2	12 - 17	31.27 - 38.36	10.42 - 11.76	55.79 - 60.53	26.23 - 35.54	4.68 - 8.03	8
Trematochromis benthicola	16 - 17	30 - 33	22 - 27	7 - 8	2 - 3	14 - 15	44.49 - 50.32	15.27 - 18.18	54.01 - 57.8	33.94 - 48.7	10.28 - 12.97	13