24 ME. G. A. BOULENGEE ON A COLLECTION 



SiLUEIDiE. 



24. Clarias anguillaeis L. 



This species occurs in the Nile as well as in the Niger and the Ogowe. It is one 

 of those Siluroids which are known to live a considerable time out of water and to 

 make excursions on dry land after the manner of Eels. 



25. Claeias liocbphalus, sp. n. (Plate VII. fig. 2.) 



Vomerine teeth in a narrow band, without posterior process. Depth of body 

 5J times in total length, length of head 5 times. Head smooth, covered with soft 

 skin, slightly longer than broad ; occipital process very short, angular ; diameter of 

 eye 3 times in length of snout, 6 times in interorbital width ; maxillary barbel as long 

 as the head, nasal barbel a little shorter; inner mandibular barbel f length of head. 

 Dorsal 70. Anal 50. Caudal free. Pectoral ^ length of head, not extending to the 

 vertical of origin of dorsal fin. Uniform blackish brown. 



Total length 80 millim. 



A single specimen from Kinyamkolo. 



26. Anoplopteeus plattchie Gthr. 



Two specimens from marshes near Mbity. 



I have recently recorded the occurrence of this species in Lake Nyassa, and it has 

 also been described by Vailknt as CMmarrhoglanis leroyi, from Mrogoro torrent, 

 Urugaru Mountains, East Africa. 



27. Auchenaspis biscutata Geoffr. 

 Known from the Nile and the Senegal. 



28. Synodontis multipunctatus, sp. n. (Plate VIII.) 



Prsemaxillary teeth in 5 or 6 irregular transverse series; mandibular teeth in a 

 single series of 16, feebly curved, simple, measuring hardly ^ diameter of eye. 

 Depth of body 3J times in total length, length of head 3f. Head scarcely longer 

 than broad, slightly convex on the crown; snout rounded, less than half length 

 of head, twice as long as eye ; eye supero-lateral, well visible from above, its 

 diameter 4^ times in length of head, twice in interorbital width. Gill-cleft very 

 narrow, not extending below base of pectoral. Maxillary barbel simple, reaching a 

 little beyond anterior third of pectoral spine; mandibular barbels strongly fringed, 

 outer a little more than twice as long as inner, and half as long as maxillaries. 

 Dorsal II 7 ; spine strong, a little shorter than the head, strongly serrated behind in 

 its distal half. Adipose fin low, a little shorter than the head, twice as long as its 

 distance from the dorsal. Humeral process simply granulate, sharply pointed, not 



