Miscellanea Zoologica. 381 
lowish or greyish colour, pellucid, the legs roughish and sparingly 
hispid with a spine at the distal end of the femoral joints : First 
segment produced into a sort of neck dilated at the apex where it 
supports the rostrum, mandibles and palpi ; the rostrum cylindrical, 
as long as the neck, divided beneath with a mesial line ; mandibles 
biarticulate, the first joint reaching beyond the rostrum, the second 
short, hispid on the external side, and armed with two claws ; palpi 
filiform, 4-jointed, the two basal joints elongated, the others short 
and hispid : oculrferous tubercle distinct : legs four times the length 
of the body, almost filiform and equal, 1st and 3d joints of the 
coxae considerably shorter than the second, which is incrassated dis- 
tally, the thigh and first joint of the tibiae elongated and equal, the 
second tibial joint still longer, first tarsal joint half as long as the 
second, which is hispid and spinous on the inner surface and armed 
with three moveable sharp claws, of which two are merely auxiliary : 
oviferous legs filiform, long, the two basal joints short, the third 
and fourth twice as long, the fifth shorter, equal to the sixth, which 
is rather longer than the three next, which are armed below with a 
double series of spines, the terminal joint forming a claw : abdomen 
small, cylindric or slightly tapered posteriorly. 
After his description of this animal Linnaeus adds " Mirum 
tarn parvum corpus regere tarn magnos pedes." Fabricius says it 
has the power of reproducing its lost members. "Mutilatur etiam 
in libertate sua, redintegrandum tamen : vidi enim, in quo pedes 
brevissimi juxta longiores enascentes, velut in asteriis, cancris aliis- 
que redintegratis," 
It may be considered doubtful whether the species figured by us 
is identical with the Phalangium aculeatum of Montagu, or the 
Nymphon gracile of Leach, for neither their descriptions nor figures 
are sufficient to determine the question, and in this uncertainty I 
have thought it , advisable to bring them all together as synony- 
mous, until further inquiries shall shew that we possess more native 
species, which is most probable. Leach, in his character of the 
genus, says the palpi are 6-jointed, and the claws simple, while the 
former appear to be only 4-jointed in our species, and the latter 
have accessory claws. Some authors have placed Montagu's Ph. 
aculeatum in the genus Phoxichilus, an error which has arisen from 
their consulting the figure, which is defective, without reference to 
the description. 
The Nymphon grossipes of Latreille and Savigny, (Mem. ii. p. 
Ill: pi. 5, fig. 2.) is altogether distinct from our N. gracile; and 
may be known by the joints of the mandibles being nearly equal in 
