424 POPULAR SCIENCE REVIEW. 
crustacean was not long since exhibited by Professor Haughton, to the 
members of the Dublin Natural History Society. The creature was 
dredged by the Professor, when yachting off Helsingfors. It was found on 
a bottom composed principally of decayed fir (its favourite habitat). It 
certainly seems strange, as Dr. Haughton observed, that with the exception 
of this animal ( Oniscus entomon ), and a few dwarfed Tellinae, the Baltic 
should be so barren a field for the naturalist’s dredge. Linnaeus observed 
that the sea-louse frequented particularly those parts of the Baltic which 
were visited hy the shoals of herrings. 
Entozoa in the Stomach of the Alligator. — Dr. A. Wynne Foot gives the 
following interesting account of the condition of an alligator’s stomach 
which had been attacked by nematoid worms. The animal was reported 
to have been in the habit of vomiting its food before death. The stomach 
of a globular shape was the size of an orange and distended with air ; it 
contained 115 worms of the genus Ascaris, averaging in length from three 
to four inches ; about one-lialf of them had spirally convoluted tails ; it 
also contained ten small pebbles and sharp-pointed flints (one of which 
was seven lines long) ; three pieces of charcoal (one of which was thirteen 
lines in length), and a soft pale coagulum with some yellowish viscid 
mucus which had an acid reaction. The surface of the stomach was 
covered with a series of irregular deposits of a fine yellowish matter, 
which were slightly raised and varied in extent from the size of a pea 
to that of a sixpence. These gave a sensation to the finger such as that 
produced by rubbing it against firm sand-paper, and even so adherent that 
they could not be removed without tearing away the subjacent stratum of 
tissue. The nature of these incrustations is not mentioned by Dr. Foot, 
so we presume the material composing them was not submitted to chemi- 
cal analysis. The facts are, however, of some interest. — Vide Dublin 
Quarterly Journal of Science , January, 1864. 
Characters of the Male Salmon after it has shed the Milk-fluid. — The dis- 
tinguished vice-president of the Zoological Society of Ireland, Mr. W. 
Andrews, has recently given a very admirable description of the male fish 
after the spawning season, and before it has reached the sea. The 
specimen, which weighed about 15 lbs. had evidently been detained for 
some time in the river, having been unable to get a free run to the lake on 
its course to the sea. It had become exceedingly dark in appearance, of 
a reddish brown hue, its back and sides being marked and studded with 
large black and red blotches. The gill covers and head were of an 
olive brown colour streaked with red, and with large black spots. The 
remarkable characters were the large and unsightly proportions of the 
head, in comparison with the size of the body, which although in better 
condition than would have been supposed, still was much attenuated. On 
dissection its flesh was found to be sodden and soft, and of a pale or faded 
pink colour, denoting an extremely unhealthy state. The gills were 
infested by parasites (the gisler or Branchiella salmonia). The still more 
remarkable character that presented itself was the large size and almost 
horny consistency that the cartilaginous extension of the lower jaw had 
assumed, and in such state had it become that the point had forced a 
