AKIMALS or DOUBTFfL SITUATION". 305 



A R TIC ULA TED A NIMALS 

 having articulated Legs, of 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 

 in globular masses. 



The legs are composed of three-jointed coxae, one-jointed thighs, 

 two-jointed tibireand tarsi, the latter part furnished with claws. 



Order PODOSOMATA, 



JBof(y four-jointed, and formed as it were of the junction of the coxa? : 

 vtouth tubular : vi/cs lour, 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 Aracuxoida by Dr. Leach, in Breusters Edin. Encycl. vol. vii. 

 and also in the article Annulosu in the Supp. to Encycl. Brit. vol. i.; 

 since which time, from a furtlier examination of their characters, 

 he is by no means satished as to their position. 



Tarn. I. PvcNOGoxiD.^. Leach. 

 Mandibles none. 



Genus 1. PYCXOGONUM of authors. 



Legs rather strong : coxa with subequal joints : tibia with the first joint 

 largest : taisi with the first joint very small : dazes 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. 



Sp. 1. Pi/c. Balananim. Fabr., Latr., Leach, Edin. Encycl. — Supp. to 

 Encycl. Brit. vol. i. pi. 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. 

 Legs very slender: com with the middle joint longest, subclavate: 

 tibite v.'ith the first joint shorter: tarsi with the first joint very small : 

 dazes 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 

 the first segment of the body. 



u 



