BELONICIITHTS. — DORYICHTHT S. 83 



developed. Yellowish brown, striolated with blackish ; a dark streak 

 on each side of the head, passing through the eye. 



Total length 178 millim. 



Lower Zambesi (Tette), and Molambi River, opposite to Mozambique 

 Island. — Types in Berlin Museum. 



Fi" 68. 





j.^ ',,.-,. .-ija: 



^ 



Beloniclulujs samhesensis. 

 Type, after Peters (Reise Mossamb.). £. 



2. DORYICHTHYS. 

 Kaup, Cat. Lophobr. Fish, p. 56 (1856) ; Giinth. Cat. Fish. viii. p. 170 (1870), 



part. ; Duncker, Mitth. Nat. Mus. Hainb. xxix. 1012, p. 229. 

 Microphis (non Hallow.), Kaup, op. cit. p. 63 * ; A. Dum. Hist. Poiss. ii. p. 588 



(1870) ; Duncker, 1. c. 



Body slender, much elongate, with more or less distinctly serrated 

 ridges, the dorso-lateral edge of the trunk not continuous with that of 

 the tail. Greater part of dorsal tin on the tail ; anal rudimentary. 

 Pectoral and caudal tins present. Brood-pouch of the male occupying 

 the Avhole belly, open. 



Brackish and fresh waters of the tropical parts of the World. One 

 species in Africa. 



1. DORYICHTHYS SMITHII. 



Donjiclrfhys, sp., J. A. Smith, Proc. R. Pliys. Soc. Edinb. iii. 1865, p. 227. 

 Microphis smithii, A. Dum. Hist. Poiss. ii. p. 599 (1870). 

 Doryiclitliys lineatus, part., Giinth. Cat. Fish. viii. p. 183 (1870). 



Head and body about f of total length ; bony rings 21-22+22-24; 

 body a little deeper than broad ; bony plates with vertical striae of 

 granular asperities, the ridges serrated, the last serra on each ring 

 enlarged into a spine, at least in the young ; lateral line continuous 

 with lower caudal ridge. Snout about 2^ times as long as postocular 

 part of head ; operculum crossed by a strong, straight ridge ; two or 

 three oblique, diverging ridges below it. Dorsal 42-48, on 9 or 10 



* Microphis, Kaup, Arch. f. Natiirg. 1853, p. 231, is not accompanied by a definition, 

 and must be regarded as a nomen nudum. 



g2 



