Some small Leptocephalids from the Atlantic. 
By 
Cand. mag. H, Blegvad. 
During my time of service onboard H. M. S. ,, Ingolf" on a 
cruise to the Danish West-Indies in the winter of 1910—11, I was 
enabled, by the generosity of the Royal Navy department, to under- 
take pelagic hauls with a plankton-net on the way from Europe to 
the West-Indies and back. 
The main purpose was to examine the distribution of the larvæ 
of Echinoderms, and the material of this kind collected will be 
dealt with by Dr. Th. Mortensen. 
In addition, although the plankton-net measured only "/2 meter 
in diameter, and each haul lasted only about 10 minutes, I caught at 
” Several places in the Atlantic Ocean some Leptocephalids or larvae 
of Murænoids. Three of these — though I do not venture at present 
to point out their relations to distinct species of Murænoids — are 
of special interest, inter alia on account of their small size. I 
give here therefore figures and a short description of these 3 
Leptocephalids. 
I. The smallest one, which has a length of 19.8 mm., was 
caught the 14th of November 1910 at 4 0'clock a. m. at the 
Surface of the sea at 21? 34' lat. N., 297 50' long. W.  Accord- 
ing to the kind communication of Dr. Johs. Schmidt, who has 
examined this Leptocephalid, it represents a species hitherto un- 
described; I propose to name it in honour of Dr. Joh. Hjort, 
who was the first to find young Leptocephalids of Anguilla vulgaris 
South of the Azores. 
