568 



CRUSTACEA. 



and last of the latter (not counting the bifid tip), are much smaller 

 than the others ; the outline of the whole is separately arcuate along 

 the back and along the beak, with a concave outline between the two 

 parts. The naked tarsus is peculiar. The base of the inner antennae 

 is hardly as long as half the beak, and the flagella scarcely reach 

 beyond the tip of the beak. The second and third joints of the abdo- 

 men have the lateral margin triangulate or obtusely pointed, and in 

 the next two, this margin is acute. The third joint of the carpus of 

 the second pair of feet is twice as long as the first and second joints 

 together. The six posterior legs are nearly naked. 



Ehyncocinetes typicfs. 



Plate 36, fig. 7 a, female, natural size ; b, beak of same ; c, outer 

 maxilliped of male, natural size ; d, first pair of legs of male, natural 



size. 



Valparaiso. 



The species has been described with detail by Milne Edwards, 

 and figured by him in the Ann. des Sci. Nat. [2], vii. pi. 4, and 

 also in the Voy. dans l'Amer. Merid., of Alcide d'Orbigny, Crustac^s, 

 pi. 17. The coloured drawing by the author, represents a fresh 

 living specimen, and shows the usual colouring of life, while that in 

 D'Orbigny's work, is much faded in its colours. 



It is important to observe, that the exterior maxillipeds are very 

 much more elongate in the male than in the female, being in the 

 former as long as the body. 



Subfamily PANDALDOE. 



Pandaltts pubescentulus. 



Carapax dense brevissimeque pubescens, margine infra oculum bispinoso. 

 Rostrum squama antemiali longius, ensiforme, paido reeurvatum sed 

 apice non altius quam dorsum, supra lQ-lS-dentatum, deniibus par- 

 entis et fere ad dorsi medium continuatis, versus apicem edenhdum. 



