4, Ad.
5. Skel.
6-8. Ad. & her. 9. Her.
10-15. Ad. & hgr. 16. Skel. 17-18. Her. 19-20. Hgr. 21. Ad.
22-24, Yo. 25-26. Ad. & hgr. 27-30. Her. 31-33. Her. 34. Ad.
35-37. Yg. 38-43. Ad. & her. 44-46. Ad. 47. Ad.
48. Ad.
49, Ad.
50-51. Ad. & her, 52. Ad.
53-55. Ad. & her. 56. Her.
57-58. Ad. 59. Ad.
60. Ad.
61. Ad.
62-65. Yg. 66-68. Ad. & her. 69. Ad.
70. Her.
71-72. Her. 73-15. Ad. & hgr. 76. Yg.
77-18. Her. 79-80. Her. & yg. 81-87. Her. & yg. 88. Yg.
89-90. Yg. EUTROPIUS. Nile.
59 bb) NearSamannud. Damietta Nile, downstream side ofbarrage. 99 ” i upstream side of barrage.
Rosetta Nile, downstream side of barrage.
Nile at barrage near Cairo. Nile 2 miles N. of Cairo. Nile at Cairo. BeniSouef. Babr Selah, Fayum. Girgeh.
Near Luxor. Assuan, Upp. Nile. Debud, - Abu Hor, _ ,, Mirrwau, _,, El Maharakka, Upper Nile. Derr, $5 Kosheh, en Khartum.
Wad Medine, Blue Nile. Rosaires, 92 Kawa, White Nile. Gharb-el-Aish, White Nile. Tewfikyeh, Fashoda, rs Mouth of L. No, ,, Butyaba, L. Albert. Bol, L. Chad. Lagos.
Lokoje and Mureji, Upp. Niger. Jebba, Upp. Niger. Ossomari, Low. Niger. Warri, Old Calabar. OldCalabar. ” Cameroon. 285 J. Petherick, Esq. (C.). G. Macleay, Esq. (P.). L. Loat, Bsq. (C.). ” J. Petherick, Esq. (C.). L. Loat, Esq. (C.). Capt. S. Flower (P.). L. Loat, Esq. (C.). Paris Museum (E.). Sir A. Moloney (P.). J. 8. Budgett, Esq. (P.). Capt. G. F. Abadie (P.). Dr. W. J. Ansorge (C.). Miss Kingsley (C.). Mr. KE. Seimund (C.). Dr. Jackson (C.) ; Hon.W. Rothschild (P.). rh)
286 SILURIDA.
91-93. Ad. & her. Cameroon. Mr. Salmin (C.).
94. Ye. Ogowe. Miss Kingsley (C.).
DR, Wer Banzyville, Ubanghi. Capt. Royaux (C.).
96-97. Yg., types of » LE.
obtusirostris.
4, EUTROPIUS GRENFELLI.
Bouleng. Ann. Mus. Congo, Zool. i. p. 137, pl. 1. fig. 1 (1900), and Poiss. Bass. Congo, p. 270 (1901) ; Pellegr. in Chevalier, Afr. C. Frane. p. 449 (1907), and Bull. Soc. Philom. (9) x. 1908, p. 187.
Depth of body 3% to 4 times in total length, length of head 5 to 53 times. Head 1? to 1} times as long as broad; snout broad, projecting slightly beyond mouth, as long as or a little longer than eye; latter perfectly lateral, 3} to 4 times in length of head, 1} to 2 times in interorbital width ; width of mouth equal to interorbital width ; vomeropalatine teeth forming an uninterrupted band, which is as broad as ora little narrower than the band of premaxillary teeth. Nasal barbel } to Fig.233.
Eutropius grenfelli.
Type (A. M.C.). 2.
1 length of head, maxillary barbel 3 to §; inner mandibular barbel 3 to 1 length of outer, which measures % to 4 length of head. Gill-rakers moderately long, widely set, 7 to 9 on lower part of anterior arch. Dorsal I 6, partly in advance of ventrals, 1} to 2 times as distant from caudal as from end of snout; its spine slender, feebly serrated behind, as long as head, produced into a filament. Anal 52-53, 4 anterior rays simple, the following gradually decreasing in length. Pectoral reaching ventral, its spine feebly serrated on inner side and stronger
EUTROPIUS. 287 than and nearly equal in length to that of dorsal. Caudal deeply forked, with pointed lobes. Caudal peduncle as long as or a little longer than deep. Silvery, back brownish; a dark, ill-defined blotch on each side above the pectoral fin.
Total length 280 millim.
Upper Congo, Ogowe, Shari.
1. Type. Bolobo. Rev. G. Grenfell (P.).
2-3. Ad. & her. Monsembe. Rev. J. H. Weeks (P.). 4. Ad. Aruwimi R. R. B. Woosnam, Esq. (C.) ; Ruwenzori Expedition.
5. HUTROPIUS LIBERIENSIS.
Hubrecht, Notes Leyd. Mus. iii. 1881, p. 69; Steind. op. cit. xvi. 1894, p. 59; Giinth. Ann. & Mag. N. H. (6) xvii. 1896, p. 276. Depth of body 4 to 42 times in total length, length of head 5 times. Head 1} times as long as broad; snout broad, projecting slightly beyond mouth, as long as or a little shorter than eye, which is perfectly lateral Fig.234, Eutropius lberiensis.
Gaboon. 3.
and 5 to 3} times in length of head, 14 to 12 times in interorbital width; width of mouth equal to interorbital width ; vomero-palatine teeth forming an uninterrupted band, which is as broad as or narrower than the band of premaxillary teeth. Nasal barbel { length of head, maxillary ~ to once, inner mandibular 4, outer mandibular 4 to 32. Gill-rakers moderately long, widely set, 9 to 11 on lower part of anterior arch. Dorsal I 5-6, partly in advance of ventrals, twice as
288 SILURIDA.
distant from caudal as from end of snout; its spine slender, feebly serrated behind, % to 3 length of head, produced into a short filament. Anal 46-50, 4 anterior rays simple, the following gradually decreasing in length. Pectoral reaching ventral, its spine moderately serrated on inner side and stronger and a little longer than that of dorsal. Caudal deeply forked, with pointed lobes. Caudal peduncle 14 to 1} times as long as deep. Silvery, pale brownish on the back, with or without a dark lateral streak ; an ill-defined dark blotch above the pectoral fin ; fins whitish.
Total length 180 millim.
Liberia, Gaboon.—Type in Leyden Museum.
1. Her. Gaboon.
2-4. Her. & yg. Lambarene, Ogowe. Miss Kingsley (C.). 5s Hons - ~ Dr. W. J. Ansorge (C.).
6. EUTROPIUS DEBAUWI.
Bouleng. Ann. Mus. Congo, Zool. i. p. 138, pl. 1. fig. 2 (1900), and Poiss. Bass. Congo, p. 270 (1901).
Depth of body 4 to 43 times in total length, length of head 5 times. Head 1} to 1} times as long as broad ; snout broad, projecting slightly beyond mouth, as long as eye; latter perfectly lateral, 3} times in length of head, twice in interorbital width ; width of mouth equal to interorbital width; vomero-palatine teeth forming a narrow uninterrupted band. Nasal barbel $ to + length of head, maxillary barbel ?, outer mandibular 4. Dorsal I 5, entirely in advance of ventrals, about 24 times as distant from caudal as from end of snout, its spine feebly serrated in front and behind. Anal 38-45. Pectoral not reaching ventral, its spine feebly serrated on both sides. Caudal deeply forked. Caudal peduncle longer than deep. Yellowish; a blackish streak on each side of the tail, and another extending on upper lobe of caudal. Total length 70 millim.
Uerre, Upper Congo.—Type in Congo Museum, Tervueren. 1. Yg., one of the types. Uerre. M. De Bauw (C.).
7. EUTROPIUS MENTALIS.
Evutropius congensis (non Leach), Giinth. Proce. Zool. Soc. 1899, p. 730. Eutropius mentalis, Bouleng. Poiss. Bass. Congo, p. 269 (1901) ; Giinth. Proc. Zool. Soe. 1902, ii. p. 335.
Depth of body 3 to 4 times in total length, length of head 43 to 5
EUTROPIUS. 289 times. Head 14 times as long as broad; snout broad, projecting slightly beyond lower jaw, as long as or longer than eye ; latter perfectly lateral, 34 (young) to 5 times in length of head, 2 to 3 times in interorbital width ; width of mouth a little less than interorbital width ; vomero-palatine teeth forming an uninterrupted band, which is as broad as the band of preemaxillary teeth. Nasal barbel shorter than maxillary, 4 to} length of head; maxillary and outer mandibular barbels equal, x to } length of head; inner mandibular barbels 3 to } length of head. Gill-rakers moderately long, widely set, 10 to 12 on lower part of anterior arch. Dorsal I 6, entirely in advance of ventrals, 13 to 2 times as distant from caudal as from end of snout; its spine slender, feebly serrated behind, 7 to 3 length of head, produced into a short filament. Anal 53-62, 4 or 5 anterior rays simple, the following gradually Fig.235.
Hutropius nentalis.
Ja River. 3.
decreasing in length. Pectoral reaching ventral, its spine stronger and a little longer than that of dorsal, with moderately strong inner serrated edge. Caudal deeply forked, with pointed lobes. Caudal peduncle a little deeper than long. Brown above, silvery beneath, or brown with three silvery longitudinal streaks on each side, the median following the lateral line ; a dark, ill-defined blotch on each side above the pectoral fin; fins brownish, with a more or less distinct light streak along the anal.
Total length 320 millim.
Gold Coast, Cameroon.
VOL. IL. U
290 SILURID ®.
1-3. Types. Prah R., Gold Coast. R. B. N. Walker, Esq. (P.). 4-6. Hor. & yg. Infoan, * \ (C.) ; - Dr. A. Giinther (P.).
7-12, 13-14. Ad., Ja R., 8. Cameroon. G. L. Bates, Esq. (C.). her., & yg.
8. EUTROPIUS MANDIBULARIS.
Giinth. Ann. & Mag. N. H. (3) xx. 1867, p. 112 ; Steind. Notes Leyd. Mus. xvi. 1894, p. 57.
Depth of body 32 to 44 times in total length, length of head 5 to 53 times. Head longer than broad; snout projecting slightly beyond lower jaw, longer than eye, which is 4 to 44 times in length of head. Nasal, maxillary, and outer mandibular barbels subequal in length. Dorsal I 6, entirely in advance of ventrals; spine slender, serrated behind, shorter than head. Anal 52-59. Pectoral reaching a little beyond base of ventral, its spine stronger and as long as that of the dorsal, its inner border strongly serrated. Caudal deeply forked, with pointed lobes.
Total length 230 millim.
Bossumprah River, Gold Coast, and Farmington River, Liberia.— Type (in Liverpool Museum) appayently lost.
9. EUTROPIUS BOCAGII.
Guimaraes, Jorn. Sci. Lisb. ix. 1882, p. 85, fig. Depth of body 4 times in total length, length of head 44 times. Head 12 times as long as broad; snout broad; lower jaw slightly projecting; eye perfectly lateral, 5 times in length of head, 34 times in interorbital width; vomero-palatine teeth forming an uninterrupted band, which is as broad as the band of premaxillary teeth. Nasal barbel not quite as long as eye; maxillary barbel about 3 length of head, outer mandibular $, inner mandibular ¢. Dorsal I 6, entirely in advauce of ventrals, twice as distant from caudal as from end of snout, its spine feebly serrated behind. Anal 53. Caudal deeply forked, with pointed lobes. Caudal peduncle hardly longer than deep. Back reddish grey, dotted with black, sides and belly silvery; fins speckled with blackish. , Total length 215 millim.
Dondo R. (Quanza), Angola.—Type in Lisbon Museum.
EUTROPIUS. 291 10. EUTROPIUS LATICEPS.
Bouleng. Ann. Mus. Congo, Zool. i. p. 105, pl. xli. fig. 3 (1899), and Poiss. Bass. Congo, p. 271 (1901).
Fig.
2386.
Se Hutropius laticeps.
Type (A. M. C.). wie Depth of body 34 times in total length, length of head 4% times. Head hardly longer than broad ; snout broad, jaws equal in front ; eye 5 times in length of head; vomero-palatine teeth forming an uninterrupted band, which is as broad as the band of premaxillary teeth. Nasal barbel 2? length of head, maxillary 3, inner mandibular 4, outer mandibular #. Gill-rakers rather long, widely set, 12 on anterior arch. Dorsal I 6, entirely in advance of ventrals, 13 times as distant from caudal as from end of snout ; its spine feebly serrated behind. Anal 45. Pectoral reaching ventral, its spine a little stronger than that of dorsal and feebly serrated on inner side. Caudal forked, with pointed lobes. Dark brown above, purplish below ; fins olive-brown. Total length 230 millim, Upper Congo (Lake Leopold II.).—Type in Congo Museum, Tervueren.
11. HUTROPIUS DEPRESSIROSTRIS.
Bagrus depressirostris, Peters, Mon. Berl. Ac. 1852, p. 682. Eutropius depressirostris, Peters, Arch. f. Nat. 1855, p. 267; Giinth. Cat. Fish, v. p- 54 (1864) ; Peters, Reise Mossamb. iv. p. 54, pl. iv. fig. 5 (1868), and Mon. Berl. Ac. 1868, p. 600 ; Steind. Sitzb. Ak. Wien, ciii. i. 1894, p. 462 ; Vincig. Ann. Mus. Genova, (2) xv. 1895, p. 34; Pteff. Thierw. O.-Afr., Fische, p. 30 (1896).
Eutropius lemairii, Bouleng. Ann. Mus. Congo, Zool. i. p. 138, pl. 1. fig. 3 (1900), and Poiss. Bass. Congo, p. 272 (1901).
u2
292 SILURID®.
Depth of body 33 to 4 times in total length, length of head 43 to 5 times. Head 14 to 14 times as long as broad; snout broad, lower jaw projecting; eye perfectly lateral, 45 to 53 times in length of head, 24 to 34 times in interorbital width; width of mouth equal to interorbital width; vomero-palatine teeth forming an uninterrupted band, which is narrower than the band of premaxillary teeth. Nasal barbel 4 to 4 length of head, maxillary and outer mandibular 3 to $, inner mandibular 4 to %. Gill-rakers moderately long, widely set, 10 to 12 on lower part of anterior arch. Dorsal] I 6, entirely or nearly entirely in advance of ventrals, 13 to 14 times as distant from caudal as from end of snout ; Fig.237.
Eutropius depresswostris.
Type,afterPeters(ReiseMossamb.). te its spine slender, very feebly serrated behind in its upper half, much shorter than the head. Anal 50-60, 3 or 4 anterior rays simple, the following gradually decreasing in length. Pectoral not reaching ventral, its spine feebly serrated on inner side, as long as and a little stronger than that of dorsal. Caudal deeply forked, with rounded or obtusely pointed lobes. Caudal peduncle about as long as deep. Greenish or brown above, white beneath, sides sometimes finely speckled with black ; a more or less distinct large dark spot above the pectoral fin. Total length 320 millim.
East and South-east Africa.—Types in Berlin Museum. 1-2. Her. Neatana, Brit. EH. Africa. Prof. J. W. Gregory (P.). 3. Her., one of the Lofoi, Katanga. Capt. Lemaire ((.). typesofLH.lemarri.
4. One of the types. Mozambique. Prof. W. Peters (P.).