the Island of Tristan da Ciinha, ^-c. 50 1 



fifth pectoral ray. I have in my possession the figure oF another 

 fish from the Cape of Good Hope, nearly akin to this, with the 

 four lowest rays of the pectoral fin lengthened. 



2. Perca ANTARCTICA, nigro-coerulca subtus argentea, spinis 



dorsalibus novem : 8 abbreviatis fossula reconditis ; ventrali 



unica. 



Tab. XXV. 



Length thirty inches ; weight fifteen pounds. Head large, 



abrupt, punctured, naked. Mouth large, ascending. Jaws equal, 



armed Avith a single row of small teeth. Palate rough. Eyes 



large. G. covers scaly, slightly serrated. Membrane seven-rayed. 



Dorsal fin 9-18, the eight anterior rays very short, lodged in a 



groove ; soft part covered with small scales. Pectoral falciform. 



Ventral fins 1-6, triangular. Anal 18, scaly at the base. Tail 



concave. L. line parallel with the back. Scales smooth. Colour 



dark blue above, silvery underneath. 



This fish Avas caught by one of the officers of the Falmouth, 

 while the ship lay at anchor off Tristan. We never took any 

 afterwards. Flesh not remarkably good. 



3. Callionymus DiACANTHUSjolivaceus maculis virescentibus 



punctisque albis marmoratus, pinnre dorsalis prioris radiis 

 (8) corpore aliquoties brevioribus, pectoralis radiis 5 inferio- 

 ribus spinosis. 



Tab. XXVI. 



Length seven inches. Body round, tapering from the head. 

 Belly flat. Front depressed. Mouth large, armed with nume- 

 rous small teeth. Palate rough. Jaws equal. Eyes approxi- 

 mated ; iris brown. G. covers marked with tortuous streaks, 

 terminating in two strong, subulate spines, that stand upright 

 when the gills are expanded. G. membrane seven-rayed. First dor- 



3 T 2 sal 



