368 



J'ROrEEDINrjS OF THE NATIONAL MUSEUM. 



\OL. XXVIII. 



The first seo'inent of the thorax i,s coalesced witli the head to form 

 a (•ara])ace. Tlie second or first free segment is a little shorter than 

 any of those following'. The third and fourth or second and third 

 free segments ar(> siibe(|ual; the last three are sul)equal, and each is 

 a little longer than either of the two preceding segments. 



The tihdonien is composed of three segments, two short ones followed 

 l)y the terminal segment, which is rounded posteriorly. The uropoda 



Fig. 1.— I'ANCOLiTs 



CAUFORNIENSIS. 



Fk;.'2.— Paxcoluscalifornien'sis. 

 First gxathopod. .-. 20. 



Fi(i. 3.— Paxcolus californiensis. a, 

 First antenna, x 44. b, second an- 

 tenna. X 44. 



Fig. 4.— Pancolus cali- 

 forniensis. Mandible. 



X 44. 



Fig. 5.— Pancolus cal- 

 iforniensis. Max- 

 illiped. X 44. 



Fig. 6.— Panco 

 Lus californi- 

 ensis. E P I G ■ 

 NATH OF MAX 

 ILLIPED. X 44 



Fig. 7.— Pancolus cal- 

 iforniensis. Poste- 

 rior LIP. X 44. 



are single branched. The peduncle is short. The branch consists of 

 a single article, tipped Avith long hairs. There are but two pairs of 

 well-developed pleopoda. 



The first pair of legs or gnathopods are chelate. The second pair 

 of legs are long and fee))le, but similar to those following, which are 

 ambulatory, but more robust. The dactyli in the last three pairs are 

 curved. 



