464 Part ITT.—Twentieth Annual Report 
the mandibles, and the one-branched mandible-palp, it does not agree very 
well with either of the genera named, which are its nearest allies. 
Laophonte similis (Claus). 
This species was obtained in the same material with the last, collected 
off St. Monans ; and it was also taken from the swimmerets of a Spider 
Crab (Hyas arenarius) from the Bay of Nigg on May 28rd, 1901. 
Laophonte curticauda, Boeck. 
Specimens of this species were obtained on several occasions on the 
swimmerets of the common Shore Crab (Carcinus menas), but whether 
its occurrence on the swimmerets of the Crab was accidental or whether 
the copepod is associated with the Crab as a commensal, is a question 
that will require further research to determine. It may be mentioned, 
however, the Laophonte was obtained as described on almost ever Crab 
examined. 
Normanella attenuata, A. Scott. Pl. XXIILI., figs. 2-4. 
1896. Normanella attenuata, A. Scott, Rept. for 1895, on Lan- 
cashire Sea-Fisheries Laboratory, p. 47, pl. iv., figs. 8-20. 
This species, which was first discovered in a gathering collected one 
mile off Spanish Head, Isle of Man, from a depth of 16 fathoms, is now 
added to the fauna of the Firth of Forth ; it was obtained in dredged 
material from Station VI. (off St. Monans), at a depth of about 10 
fathoms. Normanella attenuata is a slender species, measuring about 
a millimetre in length. The rostrum is very small; the antennules are 
slender, somewhat elongated, and nine-jointed, The outer branches of the 
first four pairs of thoracic feet are all three-jointed, but the inner branches 
of the first three pairs are two-jointed, while in the fourth pair the inner 
branches, like the outer ones, are three-jointed. The inner branches of 
the first pair, which are considerably longer than the outer ones, have the 
end joints short (fig. 3), and armed at the apex with an elongate spine, 
and two sets of unequal length. The inner branches of the second, third, 
and fourth pairs are shorter than the elongate onter branches. 
The fifth pair are broadly foliaceous and of moderate size, as shown 
by the drawing (fig. 4), 
In the female the first segment of the abdomen is larger than those 
which follow, being composed of two coalescent joints, as shown by the 
habitus figure (fig. 2). 
In this species the thoracic portion of the body is rather shorter than 
the abdomen, and gives to the animal a more than usually slender 
appearance. 
Though, from its occurrence in the Forth, Vormanella attenuta would ° 
appear to have a moderately extensive distribution, it does not seem to be 
very common. This species differs from Mormanella dubia, Brady and 
Robertson, in its general conformation, by its elongated antennules, and 
by the form of the fifth pair of thoracic feet; but it differs more 
particularly in that the inner branches of the fourth pair are three-jointed. 
In this respect it disagrees with the generic definition of Normanella, 
and may for this, and perhaps one or two other reasons, require to be 
removed to another genus, 
