458 



THE VOYAGE OF H.M.S. CHALLENGER. 



The next stage, for which we are indebted to Willemoes Suhm's drawing, from 

 which the annexed figure is taken, is described by him as being " a Leucifer larva 

 with the divided legs before the moult previous to maturity. 



"H \ x 55 nat. size, 15 March and 1st September 1875. Pacific. 



Fig. 61.— Lucifer, young, from a drawing by v. Willemoes Suhm ; a 1 , first pair of antennre ; ot, otolith ; a 2 , second 

 antenna ; lb, labrum ; mitt), mandible ; mx 1 , first maxilla ; mx 2 , second maxilla ; mxp, maxilliped ; g 1 , first gnathopod ; 

 g 2 , second gnathopod ; j' 1 ' 4 , pereiopoda ; pi 1 , first pleopod. 



Last (fourth) pereiopod very small. Carapace extended. Otolith visihle." 

 The specimen here detailed is longer than the preceding in the proportion of 



