4.60 Part IIT —Twentieth Annual Report 
The first pair of thoracic feet are elongated and slender, and especially 
the inner branches, the first joint being about as long as the entire length 
of the outer branches; the other joints are small, but the end one is 
about twice the length of the penultimate joint (fig. 6). The following 
three pairs have the outer branches long and slender; the inner branches 
are also slender, but they are shorter than the outer, as shown by the 
figure (fig. 7) which represents one of the fourth pair. 
The fifth pair are small and somewhat foliaceous, the basal joints are 
sub-triangular and provided with about four sete on the rounded apex. 
The secondary joints are subovate, and the inner margins are fringed 
with minute hairs, while one or two moderately long sete spring from the 
apex, and one or two others from the outer margin (fig. 8). 
Caudal furca shorter than the last abdominal segment (fig. 9). 
Habitat.—Dredged at Station VI., Firth of Forth (off St. Monans), in 
July 1901; only one_or two specimens were obtained, but no males were 
observed. 
Remarks.—This species is readily distinguished by the elongated 
antennules and the long and slender first pair of feet; it differs in both 
of these appendages from Ameira longipes, Boeck, as well as from the 
other described species of Amez7a known to me. 
Ameira propingua, T. Scott (n. sp.). Pl. XXIV., figs. 10-18. 
Description‘of the Female.—Length about ‘6mm. (nearly =, of an inch). 
Body slender, sub-cylindrical, the cephalo-thoracie segment about equal 
: Na entire length of the next three segments, rostrum very small (fig. 
0). 
Antennules slender and rather longer than the cephalo-thoracic 
segment, eight-jointed ; the second joint is the longest, the first and third 
are sub-equal and about two-thirds the length of the second; the 
remaining joints are small (fig. 11). The formula shows approximately 
the proportional lengths of the various joints :— 
Proportional lengths of the joints, 12°17:12°4:4:5:°*3°5 
Numbers of the joints, Be fee NL OD Sen canal nS QE Tk cet aay Mine 
Antenne elongate and moderately stout, secondary branches small, 
slender, and one-jointed (fig, 12). 
Mandibles cylindrical and not very broad, the truncate apex is armed 
with a stout spine on the outer angle and a few small spiniform sete, as 
shown by the drawing (fig. 13), The mandible-palp is of moderate size, 
the basal joint is provided with a single one-jointed and terminal 
branch. 
The second maxillipeds (posterior foot-jaws) are small but with well- 
developed terminal claws, which are rather longer than the joints to 
which they are articulated (fig. 14). 
The first four pairs of thoracic feet are slender and elongated. In the 
first pair the inner branches are narrow and considerably longer than the 
outer branches, the length of the first joint is equal to that of the 
second and third combined, but the second and third joints are sub- 
equal in length; a single small seta springs from the inner margins of 
the first and second joints, while the end joints are provided with three 
terminal hairs, the middle one being the longest. The outer branches, 
which are composed of three sub-equal joints, reach to a little beyond 
the end of the first joint of the inner branches (fig. 15). The inner 
branches of the next three pairs are considerably shorter than the outer 
branches, which are slender and elongated (fig. 16). In all the four 
pairs the outer and inner branches are three-jointed. i 
