BATHYBATES. 



441 



of head, equal to interocular width; mouth not extending to below 

 anterior border of eye ; 4 or 5 series of teeth in upper jaw, 3 in lower ; 

 8 or 9 series of scales on the cheek. Gill-rakers short, 12-13 on lower 

 part of anterior arch. Dorsal XV 14; spines rather feeble, subequal 

 from the fifth or ^sixth, about I length of head, penultimate a little 

 shorter than last ; longest soft rays about J length of head. Anal 

 III 14-15; spines feeble, third barely | length of longest dorsals. 

 Pectoral | length of head, not extending to vertical of origin of anal. 

 Ventral | the distance between its base and vent. Caudal deeply 

 notched. Caudal peduncle twice as long as deep. Scales 120- 

 125 ^4{r ; lateral 1 nes ^^5. Brownish above, whitish beneath, with 4 

 or 5 dark brown longitudinal bands on each side ; dorsal with blackish 

 spots ; ventrals and anal yellow. 



Lake Tanganyika. — Type in Cong^ Museum, Tervueren. 

 1. One o£ the types. Kilewa Eaj. Dr. L. Stappers (C). 



5. BATHYBATES FASCIATUS. 

 Bouleng. Ann. & Mag. N. H. (7) vii. 1901, p. 3, Poiss. Bass. Congo, p. 430 (1901), 



and Tr. Zool. Soc. xvi. 1901, p. 153, pi. xvii. fig. 2 ; Pellegr. Mem. Soc. 



Zool. France, xvi. 1904, p. 365 ; Bouleng. Tr. Zool. Soc. xvii. 190G, p. 5G4 ; 



Steind. Sitzb. Ak. Wien, cxx. i. 1911, p. 1175. 

 Depth of body 4-| to 4f times in total length, length of head 3 to 

 3^ times. Head 2^ to 2^ times as long as broad ; snout with convex 

 upper profile, much longer than broad, as long as postocular part of head; 

 lower jaw projecting; eye IJ to 2 times in length of snout, 4 to 5 times 

 in length of head, H to 1^ times in interorbital width; mouth not 

 extending to below anterior border of eye; 4 series of teeth in upper jaw, 

 3 in lower; 8 to 11 series of scales on the cheek. Gill-rakers moderately 

 long, 16 to 19 on lower part of anterior arch. Dorsal XVI-XVII 16-17; 

 spines rather feeble, subequal from the fifth, or penultimate a little 

 shorter than last, about \ length of head; longest soft rays about ^ length 

 of head. Anal III 17-18; spines feeble, third shorter than longest dorsals. 

 Pectoral | length of head, not extending to vertical of origin of anal. 

 Ventral not J as long as the distance between its base and vent. 

 Caudal deeply notched. Caudal peduncle 2 to 2J times as long as deep. 

 Scales as in B. ferox, but smaller still, 140-150 ^^ ; lateral lines —^g. 

 Brownish above, white beneath ; a series of large, rounded, blackish 

 spots on each side of the back above the lateral lir.e, alternating v.\\\\ a 



