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202 results for “Lake Tanganyika”
FIGURE 1. Lepidiolamprologus mimicus n in The first case of aggressive mimicry among lamprologines in a new species of Lepidiolamprologus (Perciformes: Cichlidae) from Lake Tanganyika
FIGURE 1. Lepidiolamprologus mimicus n. sp., holotype, SAIAB 41257, 144.8 mm SL, drawing by Elaine Heemstra.
FIGURE 9. Habitat. A. Neolamprologus walteri, Muzungu Beach. B in Two new cichild species Neolamprologus (Teleostei: Cichlidae) from Lake Tanganyika, East Africa
FIGURE 9. Habitat. A. Neolamprologus walteri, Muzungu Beach. B. Neolamprologus chitamwebwai, Cape Bangwe.
FIGURE 8 in Two new cichild species Neolamprologus (Teleostei: Cichlidae) from Lake Tanganyika, East Africa
FIGURE 8. The lachrymal bone of A. Neolamprologus walteri (SAIAB 57912, SL 43.2 mm) and B. Neolamprologus chitamwebwai (SAIAB 57913, SL 55.4 mm).
FIGURE 2 in Two new cichild species Neolamprologus (Teleostei: Cichlidae) from Lake Tanganyika, East Africa
FIGURE 2. Lateral view of the holotypes. A. Neolamprologus walteri, SAIAB 56090, male, 48.4 mm SL. B. Neolamprologus chitamwebwai, SAIAB 56270, female, 56.5 mm SL.
FIGURE 4 in Two new cichild species Neolamprologus (Teleostei: Cichlidae) from Lake Tanganyika, East Africa
FIGURE 4. Bangwe peninsula, with the type locality of Neolamprologus walteri (Tembo Rock) and Neolamprologus chitamwebwai (Cape Bangwe). The area shown is 4 by 5 km. Central position is about 4°54' S and 29°36'E. The town Kigoma is located immediately north of the figure.
FIGURE 5 in Two new cichild species Neolamprologus (Teleostei: Cichlidae) from Lake Tanganyika, East Africa
FIGURE 5. Regression of ratios of various morphometrics on standard length and head length. Abbreviations: walt = N. walteri (n = 29), chit = N. chitamwebwai (n = 14), bric = N. brichardi (n = 7, including holotype), savo = N. savoryi (n = 6, including holotype), falc = N. falcicula (holotype and 3 paratypes). Others = one specimen each of N. gracilis, N. pulcher, N. olivaceous, N. splendens, N. crassus, N. marunguensis and N. helianthus. The holotype for all "others" was used, except for N. pulcher (paratype). A. Body depth. B. Cheek depth. C. Preorbital depth. Linear fits are included for the data for Neolamprologus walteri (thin lines) and N. chitamwebwai (heavy lines) in A–C and for N. falcicula (dashed lines) in C. Intercepts of the fits of N. walteri and N. chitamwebwai are significantly different (Ancova, P <0.002) in A and B, while the slopes are the same. Intercepts of the fits of N. walteri and N. falcicula are significantly different (Ancova, P <0.002) in C.
FIGURE 7 in Two new cichild species Neolamprologus (Teleostei: Cichlidae) from Lake Tanganyika, East Africa
FIGURE 7. Lower pharyngeal jaw, dorsal (left), ventral (right) and lateral views. A. Neolamprologus walteri, B. Neolamprologus chitamwebwai. Scale bar 1 mm.
FIGURE 3. A in Two new cichild species Neolamprologus (Teleostei: Cichlidae) from Lake Tanganyika, East Africa
FIGURE 3. A. Neolamprologus walteri, topotype, GMNH 4419, 46.0 mm SL, Tembo Rock, Lake Tanganyika, 4°53'13"S 29°36'45"E, Tanzania. B. Neolamprologus chitamwebwai, topotype, GMNH 4420, 71.0 mm SL, Cape Bangwe, Lake Tanganyika, 4°54'44"S 29°35'55"E, Tanzania.
FIGURE 6 in Two new cichild species Neolamprologus (Teleostei: Cichlidae) from Lake Tanganyika, East Africa
FIGURE 6. Top row: lateral view (left) of the left premaxilla and dorsal view (right) of lower jaw. Bottom row: lateral and dorsal view of first gill arch and rakers. A. Neolamprologus walteri, B. Neolamprologus chitamwebwai. Scale bar 1 mm.
FIGURE 10. The upper lateral line descends 1 in Two new cichild species Neolamprologus (Teleostei: Cichlidae) from Lake Tanganyika, East Africa
FIGURE 10. The upper lateral line descends 1 scale row near its caudal end in 43 % of specimens of Neolamprologus chitamwebwai (SAIAB 58256, 61.4 mm). Note pitted scales and (tubed) canal scales in the upper and lower lateral lines.
FIGURE 4 in Geographic variation in Neolamprologus niger (Poll, 1956) (Perciformes: Cichlidae) from Lake Tanganyika (Africa)
FIGURE 4. Plot of the individual scores on PC 1 and PC 2 (meristics) of Neolamprologus niger. Polygons include the specimens originating from the three geographical groups: a northern group with populations from Luhanga (, n = 7) and Bemba (, n = 4); a central group with populations from Ubwari East (Π, n = 4) and Ubwari West (, n = 5); a southern group with populations from Yungu (Ģ, n = 2), Kabimba (, n =7) and Kalemie (☺, n =1).
FIGURE 3 in Geographic variation in Neolamprologus niger (Poll, 1956) (Perciformes: Cichlidae) from Lake Tanganyika (Africa)
FIGURE 3. Plot of the individual scores on PC 2 and PC 3 (log-transformed measurements) of Neolamprologus niger. Polygons include the specimens originating from the three geographical groups: a northern group with populations from Luhanga (, n = 7) and Bemba (, n = 4); a central group with populations from Ubwari East (Π, n = 4) and Ubwari West (, n = 5); a southern group with populations from Yungu (Ģ, n = 2), Kabimba (, n =7) and Kalemie (☺, n =1).
FIGURE 2 in Geographic variation in Neolamprologus niger (Poll, 1956) (Perciformes: Cichlidae) from Lake Tanganyika (Africa)
FIGURE 2. Lateral view on head of Neolamprologus niger with indication of the various regions with scales (see text for definitions).
FIGURE 1 in Geographic variation in Neolamprologus niger (Poll, 1956) (Perciformes: Cichlidae) from Lake Tanganyika (Africa)
FIGURE 1. Lake Tanganyika and the distribution of Neolamprologus niger. Luhanga (); Bemba (); Ubwari East (Π); Ubwari West (); Yungu (Ģ); Kabimba (); Kalemie (☺).
Distribution. Five disjunct regions: Guinean and Sahelian savannas in W Africa (Guinea and Liberia E to Niger and Nigeria); White Nile valley (Sudan, South Sudan, and NE DR Congo); around Lake Victoria (Uganda, Kenya, and Tanzania); a narrow strip along the E African coast between Mombasa and Dar es Salaam; and SW shore of Lake Tanganyika in NE Zambia, based on a reidentification in 2010 of two specimens in the London Natural History Museum collected in 1920. in Molossidae
Distribution. Five disjunct regions: Guinean and Sahelian savannas in W Africa (Guinea and Liberia E to Niger and Nigeria); White Nile valley (Sudan, South Sudan, and NE DR Congo); around Lake Victoria (Uganda, Kenya, and Tanzania); a narrow strip along the E African coast between Mombasa and Dar es Salaam; and SW shore of Lake Tanganyika in NE Zambia, based on a reidentification in 2010 of two specimens in the London Natural History Museum collected in 1920.
Distribution. EC DR Congo, lowlands E of the Lualaba River from the Lowa and Oso rivers in the N to the Elila River in the S, and Mts between the Lowa and Oso rivers in the N to ¢.6° Sin the S, along the W side of Lake Tanganyika. in Cercopithecidae
Distribution. EC DR Congo, lowlands E of the Lualaba River from the Lowa and Oso rivers in the N to the Elila River in the S, and Mts between the Lowa and Oso rivers in the N to ¢.6° Sin the S, along the W side of Lake Tanganyika.
FIGURE 179 in The genus Afrocymbella (Bacillariophyceae) from lakes Malawi and Tanganyika, with description of new fossil and extant species
FIGURE 179. Scatterplot of the valve length vs valve width showcasing the differences between A. brunii (circles) and A. gibba sp. nov. (squares) as observed in populations of samples that we collected.
FIGURES 158–178. Afrocymbella muellerii, A. kociolekii, A in The genus Afrocymbella (Bacillariophyceae) from lakes Malawi and Tanganyika, with description of new fossil and extant species
FIGURES 158–178. Afrocymbella muellerii, A. kociolekii, A. rossii, and A. tanganyikae, LM valve views. 158–162. Afrocymbella muellerii, observed in samples from Chituta and Isanga Bays. 163–169. Afrocymbella kociolekii, observed in samples from Kande Beach and Mpulungu, Chituta, Nkhata Bays. 170–174. Afrocymbella rossii, observed in samples from Kande Beach, Nkhata Bay, and Mangochi. 175–177. Afrocymbella tanganyikae, observed in core NPO4-KH1-1K from Lake Tanganyika. Scale bar = 10 μm.
FIGURES 140–143 in The genus Afrocymbella (Bacillariophyceae) from lakes Malawi and Tanganyika, with description of new fossil and extant species
FIGURES 140–143. Afrocymbella gibba sp. nov., SEM internal valve views. 140. View of the whole valve. 141. Detail of mid-valve showing proximal raphe ends covered by flap-like silica development and antler-like intermissio stigmoid. 142. Distal raphe fissures slightly raised into small helictoglossae. 143. Close view of distal raphe terminal fissure and APF with knobby jointed ridge of silica. Scale bars = 20 μm (Fig. 140), 2 μm (Figs 141–143).
FIGURES 136–139 in The genus Afrocymbella (Bacillariophyceae) from lakes Malawi and Tanganyika, with description of new fossil and extant species
FIGURES 136–139. Afrocymbella gibba sp. nov., SEM external valve views. 136. View of the whole valve showing raphe structure, slit-like areolae, and APF on footpole. 137. Detail footpole showing striae structure and distal raphe terminal fissure. 138. Detail of valve apex showing the slit-like areolae and APF of round poroids. 139. Detail of mid-valve showing dorsally deflected proximal raphe ends and slightly elongated stigmoid on the dorsal side of the large diamond-shaped central nodule. Scale bars = 10 μm (Fig. 136), 5 μm (Fig. 139), 2 μm (Figs 137–138).
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Allen Brain Atlas
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