32 STALK-EYED CRUSTACEA 



more than three times the length of the postocular 

 portion of the carapace, posterior spine not included ; 

 the other legs are slightly shorter. The last joint of the 

 four last pairs is long, sharp, and without spines or teeth 

 on its under surface. 



The abdomen is seven-jointed in both sexes. 



Range. — Mediterranean Sea, West Indian Sea, Coast 

 of the United States, the Phillipines ; in deep water. 



Synopsis of the Species. 



A. Spines on the extremity of the fourth joint of the 

 legs present. 



a. Horns of rostrum diverging, then parallel. A spine 

 on the antero-external angle of basal joint of external 

 antennae. A spine on external angle of buccal cavity. — 

 (A. /ij'stn'.v.) 



b. Horns of rostrum diverging from root. A spine on 

 antero-external angle of basal joint of external antennre ; 

 a second spine on outer side of this joint. No spine at 

 antero-external angle of buccal cavity. — {A. crassa.) 



B. No spines on extremity of fourth joint of legs. 



c. No spines on antero-external angle of buccal cavity. 

 — {^A. modcsta) 



I. Anamathia hystrix. 



Ananiatliia hystrix . . Stimpson. 

 AinatJiia Jiystrix . . . A. Milne Edwards. 



Carapace with long sharp spines ; on the gastric 

 region four, two in the middle line, one behind the other, 

 and one on each side; one on the cardiac region, also in 

 the middle line, and one behind this on the posterior 

 margin ; on each branchial region three spines, one pro- 

 jecting outwards laterally ; on each side of the gastric 



