322 siBENoirEi. 



1. PROTOPTERUS. 



Protopterus, Owen. 



Rhiuocryptis, Peters. 



Protonieius, Hoffg, Ann. >§• Mai/. Nat. Hist. 1841, vii. p. 359. 



Pectoral and ventral filaments with a fringe containing raj^s. 

 Upper labial cartilage ^^"ith a median pair of conical teeth. The 

 dental lamina of each jaw with some strong vertical ridges and 

 cusps. Three small branchial appendages above the small gill- 

 opening. Six branchial arches, with five intervening clefts. 



Tropical Africa. 



1. Protopterus annectens. 



Lepidosireii annectens, Owen, Proc. Linn. Soc. 1839, p. 27, and Trans. 

 Linn. Sue. 1841, xviii. p. 327 ; 3Iiine-Edivar(h, Ann. So. Nat. 1840, 

 xiv. p. 159 ; Jardine, Ann. ^- Maf/. Nat. Hist. 1841, vii. p. 21 ; 

 Melville, Report Brit. Assoc. 1847," p. 78 ; Gray, Proc. Zool. Soc. 

 185(3, p. 342, taf. 11 ; Gulliver, Proc. Zool. Soc. 18(J2, p. lUl (blood- 

 corpuscles) ; Cohhohl, Proc. Zool. Soc. 1802, p. 120, taf. 13 (skull 

 without labial cartilage) ; McDonnell, Zeitschr. Wiss. Zool. 1860, x. 

 p. 409 ; Baker, Albert Ni/nnza, p. 131 ; Giinth. in Petherick's Travels, 

 ii. p. 268 *. 



Protopterus anguilliformis, Otcen, I. c. ; Peters, Fisch. Mossamh. p. 3, 

 taf. 1. fig. 1. _ _ • 



Rhinocryptis amphibia, Peteis, Monatsber. Ak. Wiss. Berl. 1844, 

 p. 414, and Miiller's Arch. Anat. 1845, p. 11, taf. 1-3. 



Protopterus anuectens et rhinocrj'ptis, Graij, Batrach. Grad. p. 62. 



sethiopicus, Heckel, Sitzysber. Ak. Wiss. Wien, 1851, vii. p. 685. 



Scales in about sixteen longitudinal series on each side of the 

 body. About 36 pairs of ribs. 

 Tropical Africa. 



a-b. Adult : stuffed, 34 inches long. West Africa. From the 



Crystal Palace Company. 

 c,d,e,f,g,h. Many adult and half- grown specimens. River 



Gambia. 

 i-l. Half-grown, enclosed in mud cases. Sierra Leone. Presented 



by Col. Hill. 

 m. Adult : stufied. Nile. Purchased of M. Parzudaki. 

 n-o, p-q. Half-grown and young. Zanzibar. From Dr. Kirk's 



Collection. 

 r, s. Adult. Zambezi. From Dr. Kirk's Collection. 



2. LEPIDOSIREN. 



Lepidosiren, FUzinger. 



Amphibichthys, Hogg, Ann. S,- Mag. Nat. Hist. 1841, p. 362. 



Pectoral and ventral filaments without fringe. Upper labial car- 

 tilage with a median pair of conical teeth. The dental lamina of 

 ea'^h jaw with strong cusps supported by vertical ridges. No ex- 



* The first discoverer of Protopterus in the Nile was not Sir S. Baker, as I 

 previously believed, hut Dr. Knoblecher (see Hcokel, /. c). 



