animals of doubtful situation. 
305 
ARTICULATED ANIMALS 
having articulated Legs, o) doubtful Situation. 
The singular animals that compose this group inhabit the sea. 
The females are furnished with two palpiform organs inserted at the 
base of the rostrum, on which parts they carry their eggs, attached 
hi globular masses. _ , 
The legs are composed of three-jointed cox®, one-jointed thighs, 
two-jointed tibiae and tarsi, the latter part furnished with claws. 
Order PODOSOMATA. 
■Body four-jointed, and formed as it were of the junction of the cox®: 
mouth tubular: eyes four, placed on a common tubercle : legs eight. 
The natural situation of this assemblage of animals is still doubt- 
ful, as very little is known concerning them : they were referred to 
the Arachnoid a by Dr. Leach, in Brewster's Edin. Encyd . vol. vii. 
and also in the article Annulosa in the Supp. to Encycl. Brit. vol. i.; 
since which time, from a further examination of their characters, 
he is by no means satisfied as to their position. 
Fam. I. Pycnoconidie. Leach. 
Mandibles none. 
Genus 1. PYCNOGONUM of authors. 
Legs rather strong : coxa with subequal joints : tibia with the first joint 
largest : tarsi with the first joint very small : elms simple, strong, 
acute. 
Egg-bearing organs ten-jointed, the last joint very acute, ungui- 
form, attached to the first joint of the body at the base of the ros- 
trum. 
1. Pyc. Balanarum. Fabr., Latr., Leach, Edin. Encycl. — Supp. to 
Encycl. Brit. vol. i. ph. 23. Trans. Linn. Soc. xi. 388. 
Inhabits the European ocean. It is not uncommon in Plymouth 
Sound, where it is taken by the trawl fishers. 
Genus 2. PHOXICHILUS. Latr., Leach. 
very slender : coxa with the middle joint longest, subclavate : 
tibia with the first joint shorter: tarsi with the first joint very small : 
daws double, unequal, the longer one acute. 
Egg-bearing organs seven-jointed, the last joint tuberculiform, in- 
serted at the base of the rostrum, one on each side, and attached to 
Ihe first segment of the body. 
v 
