434 STALK-EYED CRUSTACEA 



B. There is no central tooth in the middle line between 

 the frontal horns (there may be a spine in this localit}'). — 

 {Pamdinis.) 



I. Palinurus. 



Palinurus Spence Bate, Miers, 



Dana, Heller. 



Palinurus (part) H. Milne Edwards, 



Fabricius. 



Palinurus (subgenus) . . . Gray. 



Lafigoustes ordinaires . . . H. Milne Edwards. 



There is a small central tooth (not a spine) in the 

 middle line between the frontal horns, overhanging the 

 ophthalmic segment. The antennary segment very.narrow 

 above. External antennae nearly in contact with one 

 another at their base, and concealing the base of the 

 internal antennas,. the flagella of which are very short. 

 Gills attached as in Ibaccus, with the same number of 

 branchial plates. 



Range. — West Indies, shores of Europe, Mediter- 

 ranean Sea, Japan, New Zealand, the Cape. 



I, Palinurus longimanus. 



Palinurus loiigiuiamis . . H. Milne Edwards. 



The lateral horns of the front are armed with two or 

 three spines upon their superior border, and with many 

 small spines between their base and the central rostral 

 tooth, which is simple, acute, and spiniform. There is a 

 single large spine on each side of the anterior border 

 of the carapace. There are seven rows of spines on the 

 anterior portion of the carapace, but not so many on the 

 posterior portion. The whole surface of the carapace is 



