LEUCISOUS. 189 ventral. Brownish or olive above, more or less profusely speckled with black ; a more or less distinct dark lateral band, above the lateral line. Fig.166.
Leuciscus callensis.
Type.
Total length 75 millim. Northern Algeria and North-Western Tunisia.—Types in Paris Museum.
1. One of the La Calle, Algeria. M. Guichenot (C.) ; types. Paris Museum (E.). 2-5. Ad. Algeria. Sir L. Playfair (P.). 6-8. Ad. & her. Wed Abdallah, N.W. Tunisia. | Vicomte H. de Chaignon (C.) ; Paris Museum (H.). 9-10. Ad. & Wed Amor, N.W. Tunisia. M. H. Gadeau de Kerville her. (C.) ; Paris Museum (E.). 2. LEUCISCUS CHAIGNONI. Leuciseus (Phoxinellus) chaignoni, Vaill. Bull. Mus. Paris, 1904, p. 188, and Bull. Soc. H. N. Autun, xvii. 1904, p. 158, pl. vi. figs. 1-4. Leuciscus chaignont.
Type.
Very closely allied to, and barely separable from, the preceding. Differs by fewer anal rays (III 7-8) and rather larger scales (37-43 By 2-3).
Total length 65 millim.
190 CYPRINID 2.
Eastern Algeria and North-Western Tunisia. — Types in Paris Museum.
1-3. Types. Wed Bezirk, N.W. Tunisia. Vicomte H. de Chaignon (C.); Paris Museum (E.).
4-6. Ad. & her. Wed el Mahdi, N.W. Tunisia. x de Zkak Ain Oumash, near Biskra. Lord Walsingham (P.). 7. LEPTOCYPRIS.
Bouleng. Ann. Mus. Congo, Zool. i. p. 133 (1900), and Poiss. Bass. Congo, p-. 230 (1901).
Body elongate, feebly compressed, with rounded belly, covered with rather large scales. Lateral line low down on the body, ending in the middle of the caudal peduncle. Mouth rather large, oblique, without lips or barbels. Suborbitals large, covering the cheek. Dorsal fin without ossified ray, with 10 rays, 8 of which are branched, originating above the ventrals, Anal fin with 10 or 11 rays. A scaly process at the base of the ventrals. Pharyngeal teeth conical, hooked, in two series (5. 3—3. 5).
Congo.
A single species.
1. LEPTOCYPRIS MODESTUS.
Bouleng. ll. ce. p. xlix, fig. 3, and Ann. Mus. Congo, Zool. ii. p, 21 (1902). Depth of body 5 to 6 times in total length, length of head 43 to 4% times. Head twice as long as broad; snout rounded, projecting a Fig.168.
“3 Leptocypris modestus.
Type (A. M. C.).
little beyond mouth, as long as eye, which is 33 to 33 times in length of head; interorbital width 3 to 3} times in length of head; mouth extending to below anterior fourth of eye. Gill-rakers rudimentary.
LEPTOCYPRIS.—BARILIUS. 191 Dorsal II 8, equally distant from occiput and from caudal, border concave, longest ray 7 length of head. Anal II 8-9. Pectoral pointed, 2 length of head, not reaching ventral. Caudal forked, Caudal peduncle nearly twice as long as deep. Scales with radiating strive, 40 ae 2 between lateral line and ventral, 14 round caudal peduncle. Silvery, brownish on the back.
Total length 85 millim.
Upper Congo.—Type in Congo Museum, Tervueren.
1. One of the types. Between New Antwerp and Major Weyns (C.). Stanley Falls.
Hs ING Banzyville, Ubanghi. Capt. Royaux (C.).
8. BARILIUS.
Ham. Buchan. Fish. Ganges, p. 384 (1822), part.; Giinth. Cat. Fish, vii. p. 286 (1868) ; Bouleng. Poiss. Bass. Congo, p. 231 (1901), and Fish. Nile, p. 261 (1907).
Opsaridium, Peters, Mon, Berl. Ac. 1853, p. 783, aud Reise Mossamb. iv. p. 58 (1868).
Pelotrophus, Giinth. Proc. Zool. Soc. 1864, p. 314, and Cat. Fish. t. c. p, 320. Body more or less compressed, with rounded belly, covered with small or moderately large scales. Lateral line low down, following the ventral outline of the body and running along the lower part of the caudal peduncle. Mouth large, oblique, without lips, with or without barbels. Suborbitals large, covering the whole or the greater part of the cheek. Gill-membranes narrowly united to the isthmus. Dorsal fin without ossified ray, with 9 to 13 rays, 7 to 10 of which are branched, originating behind the vertical of the ventrals and before that of the anal. Anal fin with 10 to 22 rays. A scaly process at the base of the ventrals. Pharyngeal teeth conical, hooked, m two or three series. South-Kastern Asia and China, Nile and Tropical Africa. Synopsis of the Species.
I. Dorsal entirely in advance of anal.
D. I 7-8 ; A. IIT 10-12; Se. 36-40 3-0), 2-21; head 2-23} times as long as broad ; depth of body 33-5 times in total length ; origin of dorsal midway between nostril or eye and caudal . . 1. B. niloticus, Joann., p. 193.
192 CYPRINIDA.
D.TIT8; A. T1110; Se. 39 $42; head 23 times as long as broad ; depth of body 5 times in total length ; origin of dorsal midway between idle and Gandell ee Smet. 0 . 2. B. weeksii, Blgr., p. 195. D. 119; A. UIL12; Se. 45 1578 cre ead 31 times as long as broad; depth of body 6 times in total length; origin of dorsal midway between centre of eye and caudalin 9) j.) 3) (8a) is eS. Pealonotostits slo sp Haloos II. Last ray of dorsal corresponding to origin of anal. D. 1118; A. TIT 18; Se. 40-4154, 1 depth of body 44-42 times eS su length ; origin of dorsal midway between occiput and caudal . . . . . 4. B. luje, Blgr., p. 196. D. TIT 8-9; A III 11-13 ; Sc. 38-41 F, 2; depth of body 33-4} times in total length ; origin ot dorsal midway between eye andcaudal . . . . . . 5. B. steindachneri, Pellegr., p. 197. III. At least 4 of base of dorsal above anal. A. 39-45 scales in lateral line. D. II-1II 9-10; A. III 10-11; Se. 41- 43 a 2; depth of body ia times in totallength . .. . . . . . 6. B. zambesensis, Peters, p. 198. D.W18; A. IIL 14-15; Se. 44-45 2 ay Ll; depth of body 5 times in total leng oth . 7. B. weynsii, Blgr., p. 198. D. I1 9-10; A. III 11-13; Se. 42-45% ret 3; depth of body 32~4} times in total lenothits. Of) 10 18) SiG. De eLetNSaeBymeavi, Bloggy: 199. D. Il- mu 8-9; A. HI 12-14; Se. 39- 44 ; ae 2; depth of body 3-32 times in totallength. . . . - . . . 9. B. ubangensis, Pellegr., p. 200. lee Se B. 46-63 scales in lateral line. 1. Dorsal with 7 or 8 (rarely 9) branched rays. III 14; Se. 46 3p 2 2... . . . . 10. B. buchholzi, Peters, p. 201. . II] 14-17; Se. 49-51 soe 2-24. . . 11. B. kingsleye, Bler., p. 202. . III 12-15; Se. 50-58 * fo 23. . . 12. B. loati, Blgr., p. 203. . IIT 15 ; Se. 59-63 for iy 24 . . . . 13. B. senegalensis, Stdr., p. 204. > > b> b>
BARILIUS. 193 2. Dorsal with 9-10 branched rays.
A. If 15-17; Se. 47-52 = ,2. . . . IA. B. mierocephalus, Gthr., p. 205. A. TIE 13-14; Sc. 55-60" ae ,3 . . . 15. B. moorii, Blgr., p. 206. ©. 80-88 scales in poe Line IDS JUUE 3WG) ANG ION 1 BY Ske, 82 | ae -,4. . . 16. B. tanganice, Blegr., p. 207. D. Ill 9-10; A. IID 16- 17 ; Se. 80- 88 ae Dc 9 0 vo em os oe Ae de mmaralgoun, Creams os AO. 1. BARILIUS NILOTICUS.
Leuciscus niloticus, Joannis, Mag. Zool. 1835, iv. pl. iti. ; Cav. & Val. Hist. Poiss xvii. p. 311 (1844).
Lewiscus thebensis, Joannis, t. ¢. pl. xi. Alburnus niloticus, Heck. Russegger’s Reise Hgypt. iii. p. 328 (1846). Opsarius thebensis, Heck. t. c. p. 329, pl. i. Barilius niloticus, Giinth. Cat. Fish. vii. p. 293 (1868), and Petherick’s Trav. ii p- 263 (1869) ; Steind. Sitz. Ak. Wien, ciii. i. 1894, p. 461; Bouleng. Ann. Mus. Congo, Zool. i. p. 102 (1899), and Fish, Nile, p. 262, pl. xlviii. fig. 3 (1907).
Bavilius thebensis, Giinth. Petherick’s Trav. ii. p. 263. Alburnus alewandrinus, Steind. Sitzb. Ak. Wien, cii. i. 1893, p. 240, pl. iii. fig. 3. Fie.169.
\ ) y ALY A a VY my 9 WA Coy He JOO yor eae aes Barilius niloticus.
Lower Nile (I. N.).
Depth of body 34 to 5 times in total length, length of head 4 to 42 times. Head 2 to 2} times as long as broad; snout rather pointed, not or but slightly projecting beyond mouth, not longer than eye, which is contained 33 to 4 times in length of head; interorbital width equal to diameter of eye or a little greater ; mouth extending to below anterior border of pupil or centre of eye; no barbels; suborbital bones nearly VOL, II. ca)
194 CYPRINIDA.
entirely covering the cheek in the adult, the second narrow and rot extending posteriorly beyond centre of eye. Gill-rakers few and short. Dorsal III 7-8, above space between yentrals and anal, originating midway between nostrils or eye and root of caudal; first branched ray longest, § to # length of head. Anal IL] 10-12, first branched ray longest, $ to 2 length of head. Pectoral acutely pointed, as long as or a little shorter than head, not reaching ventral ; latter much shorter, not reaching vent. Caudal forked. Caudal peduncle 14 to 1% times as long as deep. Scales with radiating strie, 36-40 sot 2-23 between lateral line and ventral, 12 round caudal peduncle. Uniform silvery, darker on the back ; fins whitish.
‘Total length 95 millim.
Lower Nile to Bahr-el-Gebel and Blue Nile; Omo; Niger. 1-2. Ad. Damieita Nile, near Samannud. L. Leat, Esq. (C.). 3-5. Ad. Be >» Barrage.
6. Ad. Rosetta Nile, near Barrage. 6 7-11. Ad. Ghiza, near Cairo. Japt. S. Flower (P.}. 12-14. Ad. & Beni Souef, Lower Nile. L. Loat, Esq. (C.). her.
45-18, Ad. & Canal near Luxor. her.
19-33. Ad.,her., Regulator near Luxor. «& yg- 34-83. Ad. hor., Between Luxor and Assuan. &yg.
84-86, 87-117. Assuan. .
Ad.
118. Skel. rs a 119-183. Her. & Wady Halfa.
ye- 134-142. Hor. & Omdurman. Pr ys:
143-146. Ad. & Wad Medine, Blue Nile. Capt. S. Flower (P.). y8- 147-156. Her. Rosaires, Blue Nile. Pn 157. Hgr. Gondokoro, Bahr-el-Gebel. L. Loat, Esq. (C.). 158-159. Her. Omo R., between Malo and Prof. O. Neumann (C.). Kosha.
160-161. Ad. Jebba, Upper Niger. Dr. C. Christy (P.). 162-163. Ad. & Ossomari, Lower Niger. Dr. W. J. Ansorge (C.). hor.
BARILIUS. 195 2. BARILIUS WEEKSII.
Bouleng. Ann. Mus. Congo, Zool. i. p. 103 (1899), & p. 134, pl. xlviii. fig. 4 (1900), and Poiss. Bass. Congo, p. 232 (1901).
Depth of body 5 times in total length, length of head 44 times. Head 24 times as long as broad; snout pointed, projecting slightly - beyond lower jaw, as long as eye or interorbital width, 33 times in length of head; mouth extending to below anterior third of eye; no barbels; suborbital bones nearly entirely covering the cheek. Gillrakers short and few. Dorsal I1I 8, above space between ventrals and anal, originating midway between occiput and root of caudal; anterior rays longest, length of head. Anal III 10, falciform, anterior rays longest. Pectoral pointed, shorter than head, widely separated from Barilius weeksii.
Type (A. M. C.).
ventral. Caudal forked. Caudal peduncle twice as long as deep. Scales with radiating strie, 39 - 2 between lateral line and ventral, 14 round caudal peduncle. Silvery, olive on the back. Total length 70 millim.
Upper Congo.
1. Type. Monsembe. Rev. J. H. Weeks (P.).
3. BARILIUS LONGIROSTRIS.
Bouleng. Ann. Mus. Congo, Zool. ii. p. 33, pl. ix. fig. 4 (1902). Depth of body 6 times in total length, length of head 5} times. Head with straight upper profile, 3; times as long as broad, twice as long as deep; snout acutely pointed, projecting slightly beyond lower jaw, more than length of head; eye 5 times in jength of head, equal to interorbital width ; mouth extending to below posterior third of eye : no barbels; naked space between preoperculum and second suborbital nearly $ width of latter. Gill-rakers rudimentary. Dorsal III 9, above space between ventrals and anal, originating midway between centre of 02
196 CYPRINIDA, eye and root of caudal; anterior rays longest, about $ length of head. Anal Til 12, falciform, anterior rays much longer than posterior. Pectoral acutely pointed, $ tength of head, widely separated from ventral. Caudal forked. Caudal pedunele twice as long as deep. Seales 45 i 2 between lateral line and ventral. Grey above, silvery white beneath ; fins whitish, anterior rays of dorsal tipped with blackish. — Fig.171.
Barilius lonyirostris.
Type (A. M. C.).
Total length {20 millim.
Ubanghi, Upper Congo.—Type in Congo Museum, ‘Tervueren. 4. BARILLUS LUd As.
Bouleng. Catal. Poiss. Congo Mus. Luxemb. p. 9 (1909). Depth of body 4% to 4% times in total length, length of head 4 times. Head twice as long as broad; snout obtusely pointed, as long as or a Bariliusluje.
Type.
little longer than eye, which is 4 times in length of head ; interorbital width 3 times in length of head; mouth extending to below centre or posterior third of eye; no barbels; naked space between preeoperculum