APPENDIX II 449 
P. pubescens, and about four times as long as wide, while in P. 
krgyert it is obliquely triangular, between two and three times as 
long as wide. The eyes of P. pubescens are longer than those of 
P. krgyeri, so that the slender scale at the base of the outer antenne 
does not reach the end of the eye in the former but does in the 
latter. By far the easiest way to distinguish these two forms is 
by the colour pattern; in P. pubescens the bands of red on the 
walking feet are disposed across the middle of each segment, while 
in P. krgyert they run across the articulations between the segments. 
The common lobster of New England extends to southern 
Labrador and occurs in abundance on the coasts of the Gulf of St. 
Lawrence. It has been found as far north as Henley Harbour 
(52° north lat.), and extends perhaps a few miles farther. Its 
absence along the Atlantic coast of Labrador is explained by the 
lower temperature produced by the Arctic current, which flows 
southward close to the shore. While many lobsters are trapped 
in the shallow bays of the southern coast, the catch is not sufficient 
to supply a cannery. The lobsters appear to be all fished out 
when the traps are first set, and various attempts to operate can- 
neries have had to be abandoned. 
There are fourteen species of shrimps known on the Labrador 
coast, varying in length from a half inch to four or five inches. 
They agree in having the abdomen or posterior part of large size, 
and generally extended to the full length, though sometimes bent 
at a right angle instead of being folded up under the thorax, as in 
the crabs. The shrimps are further marked by a spreading tail 
fan composed of the terminal segment, or tail, and the two pairs 
of appendages attached to the preceding segment. In one of 
the most abundant species (Sclerocrangon boreas), of a pale brownish 
red colour with a chestnut stripe along the sides, the skin is hard 
and rough, the body is stout in front, tapering posteriorly, the tiny 
claws which arm the first pair of trunk legs are of curious shape 
peculiar to the family Cragonide, the palmar portion being oblong 
and bearing a small spine in place of the well-known thumb or 
immovable finger of the lobster and most shrimps, while a slender 
movable finger lies transversely or across the end of the palm. 
One of the largest shrimps is Pandalus montagut, which is abun- 
dant especially in weeds on a clear, pebbly bottom ; it is compressed 
laterally and armed with a long, slender, swordlike rostrum or beak, 
with a row of sharp spines on its middle line; the antennze may 
be as long as the rest of the animal, and the ‘legs are all slender 
without conspicuous claws. The red colour which plays a promi- 
1 Cf. Herrick, The American Lobster, in Bull. U.S. Fish Comm. 
for 1895, pp. 14-15. 
2G 
