PISCES 163 
Giinther considered A. decagon as a synonym of A. sphyraena 
Linneus, and regarded A. elongata as distinct. The type was a 
young example, and an examination of my series shows that in 
small specimens the head is relatively longer and the body less 
deep than in larger ones. Giinther appears to have had the type 
specimen, which is doubtless in the British Museum, but the 
respective descriptions of Hutton and Giinther vary somewhat, 
thus the former gives the depth of the body as 9 times in the 
length, the latter 8. The eye is rendered as 314 and 4 times in 
the length of the head respectively; I have specimens showing 
the former proportion. In neither the depth of the body nor the 
diameter of the eye, does Giinther’s figure quite agree with his 
description. Under these circumstances, and seeing that I have 
specimens from the type locality, I cannot but regard my 
examples as identical with this species. 
Clarke’s specimen was larger, and I have small hesitation 
in regarding mine as of the same species; though the relative 
position of the nostrils, as described, is different. As above 
mentioned, Giinther has identified this, apparently from the 
description only, with A. sphyraena. Our specimens have 54 
vertebre, while the northern one is said to possess but 50. 
Gunther writes :—‘‘The three Atlantic species known are very 
similar to each other in their organisation, and, therefore, we 
may infer that they agree very much in their habits. They live 
at a considerable depth, but probably at some distance from the 
bottom, as they have never been captured by the dredge or 
trawl during any of the deep-sea expeditions.’’ Additional 
species, made known since this was written have been taken in 
the dredge, while all our numerous examples were captured in the 
trawl. Specimens taken at the northern stations were ready for 
spawning, the roe being small and colourless. 
APODES. 
Family ANGUILLIDA. 
CONGERMURAENA Kaup, 1856. 
CONGERMURAHNA HABENATA Richardson. 
LItTtLE ConcER EEL. 
Congrus habenata Richardson, Voy. Ereb. and Terr., 1848, 
p. 209: pl 1.) fresevl-5; 
Stations 7, 89. 
The only examples of this species were obtained from other 
fishes, and were either thrown up or removed from their 
