of the Fishery Board for Scotland. 24d 
Second mazxillipeds short, stout, with a strong terminal claw (fig. 14). 
The first pair of thoracic legs stout, both branches three-jointed ; the 
first joint of the inner branch is as long as the entire outer branch, while 
the second and third joints are very short; a long plumose seta springs 
from near the middle of the inner margin of the first joint, but the outer 
margin is fringed with small spines, the inner branch bears two strong, 
but unequal, terminal claws; the first and second joints of the outer 
branch are subequal, and are each furnished with a stout elongated spine 
near the outer distal angle, the second joint being also provided with a 
long plumose seta on the inner margin, the end joint is tolerably short 
and is armed as shown in the drawing ; a stout spine also springs from 
both the outer and inner angles of the second basal joint (fig. 15). 
The next three pairs of thoracic legs have also both branches three- 
jointed, the inner being the shorter one; both branches have their outer 
margins fringed with spines. In the fourth pair (fig 16.) the inner 
margin of the first joint of the inner branch caaries one seta. The second 
two sets, and the end joint four sete. A short spine also springs from 
the onter distal angle of the third joint. 
' The fifth pair foliaceous, basal joint broadly triangular, with a 
truncated and broadly but irregularly rounded apex which bears five stout 
sete of various lengths. Secondary joint broadly subquadrangular, proximal 
half of the outer margin nearly parallel with the inner, but the distal 
half tapers towards the apex and carries three sete, other three sete 
spring from the apex and lower part of the inner margin (fig. 17). 
Furcal joints very short; the inner of the two principal tail sete with 
the base slightly dilated (fig. 18). 
Habitat.—Collected in an old quarry, open to the sea, at Granton, 
Firth of Forth, 
Remarks.—The form described here under the name of Dactylopus/a 
brevicornis, Claus, undoubtedly belongs to that species.. The drawings, 
though only now published, were prepared a number of years ago from 
specimens collected in an old quarry at Granton, Firth of Forth, to which 
the tide has access. 
The abbreviated length and massive structure of the antennules; the 
structure of the mandibles, the stout first pair of thoracic feet, and the 
form of the fifth pair are sufficiently characteristic of this particular species. 
The following list of some of the rare and interesting species that have 
been obtained in the old quarry at Granton just referred to may be of 
interest, as indicating the remarkable variety of organisms present in this 
small body of water. The species are arranged alphabetically :— 
Acartia bifilosa, Giesb. 
Ameira longicaudata, T. Scott. 
Beatricella mimica, T. Scott. 
Canthocamptus parvus, T. Scott. 
Canuella perplexa, T. and A. Scott. 
Cletodes similis, T. Scott. 
Dactylopusia brevicornis, (Claus). 
4s finmarchicus, (T. Scott). 
BS vulgaris, G. O. Sars. 
Ectinosoma curticorne, Boeck. 
Enhydrosoma incurvatum (B. & R.). 
Euryte longicauda, Philippi. 
Halicyclops equoreus (Fischer). 
Harpacticus obscurus, T. Scott. 
Idya furcata, Baird. 
» gracilis, T. Scott, 
