CRUSTACEA OF THE MEEQITI ARCHIPELAGO. 203 



of the Kiel Museum. The types are a large adult and a smaller 

 female, and both are labelled Leucosia glohosa, Fabr. In the 

 adult male the carpopodites of the anterior legs are distinctly 

 granular along the inner margin of their upper surfaces, but its 

 hands have a somewhat different appearance from those of the 

 much smaller female. The cephalothorax of the adult male is 29| 

 millim. long, whilst that of the female is scarcely 17 millim. The 

 hands of the latter completely resemble those of the Mergiii 

 specimens ; but in the male the hands, and more especially the 

 palm, are comparatively more enlarged and distinctly granular 

 on the inner margin of the palm and of the immobile finger than 

 in the female ; the fingers are more deflexed, more strongly 

 denticulated on their inner edges, and more distinctly longi- 

 tudinally grooved on their outer and inner surfaces ; and the 

 mobile finger, moreover, is granular on its upper margin. 

 These differences are doubtless attributable to the large size of 

 the individual, for in its other characters the male perfectly 

 agrees with the female. 



I have referred the Mergui specimens to FhiJyra glohosa, 

 because they perfectly agree with Fabricius's female type. 



The cephalothorax of the Mergui specimens (excluding the 

 epistome) is quite as long as broad ; the convex upper surface 

 presents no trace of divisional lines, but in the adult male 

 specimen of Fabricius the branchio-cardiac grooves are faintly 

 indicated. The upper surface is minutely punctate and covered 

 with innumerable minute granules, which become a little more 

 distinct towards the lateral margins. 



A continuous beaded line defines the lateral and posterior 

 margins, and the granules forming it are alternately a little 

 larger and smaller, as described by Milne-Edwards. The posterior 

 margin of the cephalothorax is rounded, but in a very young 

 specimen, scarcely 4 millim. broad, a small angular prominence is 

 present on each side, a juvenile character mentioned by Stimpson 

 in his description of Leucosia vittata. The front is somewhat 

 less prominent than the epistome, is a little deflexed, and 

 broadly triangular, but rather acute in the middle. The upper 

 orbital margin is marked with one or two fissures. The inflected 

 sides of the cephalothorax a]^e minutely granular. The ex- 

 ternal margins of the stalks of the outer foot-jaws are granular 

 in both sexes ; in the female (not in the male) each stalk 

 presents a longitudinal row of hairs close and parallel to the 



