470 STALK-EYED CRUSTACEA 



compressed, and armed with some spinules. Appendages 

 two-branched and foliaceous. Internal antennae longer 

 than the rostrum, with two flagella and a spine at the 

 base half the length of the joint which carries it. Ex- 

 ternal antennae longer than the animal, with a basal scale 

 nearly as long as the carapace. The first maxillipede has 

 an external appendage, as also the external maxillipede, 

 which is pediform. First pair of legs long and simple ; 

 second pair unequally long, slender, and provided with 

 pincers ; remaining legs robust. 



The gills are attached to the body wall, to the 

 membrane between the body and the first joint of all 

 the legs except the last pair, and of the external maxilli- 

 pede, and to the first joint of the first maxillipede, which 

 is provided with a branchial scale. 



Range. — European Seas, Madeira, Australia, West 

 Indies. 



I. Pandalus longipes. 



Ptvidalus longipes ... A. Milne Edwards. 



The rostrum is straight ; it is about twice as long as 

 the carapace. The spines at the base are fine, above the 

 eye they are strong, and they again diminish towards the 

 tip ; below the teeth are very numerous and very fine. 

 The legs of the third, fourth, and fifth pair exceed the 

 rostrum ; their fourth joint is spiny. 



Range. — Barbados ; in deep water. 



Tribe II. Monocarpidea. 



Monocarpidea . . . Spence Bate. 



The fifth joint of the second pair of legs is composed of 

 one piece, and usually the hands of this pair are longer 

 than those of the first pair of legs, when they are present. 



