130 



The 4th or " latei'al " crest in its anterior half is cut into two spines, the 

 anterior and larger of which does not nearly reach to the anterior border of the 

 carapace. 



Though in the female the inner and longer antennular flagelluni is about as 

 long as its peduncle and about half the thickness of the outer flagellum, yet in 

 the male both flagella are about half as long again as the peduncle, and the 

 outer one is foliaceously expanded in its proximal two-thirds. 



The antennal scale is narrower, its breadth being little more than half its 

 length, and the antennal flagellum is a little longer than the distance between 

 the tip of the rostrum and the after border of the 3rd abdominal somite. 



The 2nd pair of thoracic legs are shorter than any of the last 3 pairs and 

 reach only a short distance beyond the tip of the antennal scale. 



Colour in life, deep pink or orange, the eyes dull orange with an opales- 

 cence like a " cat's-eye." 



A large female has the carapace and rostrum 50 millim. long and the 

 abdomen 65 millim., measured in the middle line. 



Found in the Arabian Sea only, in the neighbourhood of the Laccadives and 

 northwards, at 865-880, 890, 912-931, 947, 1000, and 1022 fathoms. 



tj j AT 0026 -, 6028 /rr £ ,, • x 8850 30 32 34-38 796-797 



ftegd. Nos. -g- and — (Types of the species) : -^ : - : - : -_- : — — : 



34 18-3419 

 10 



77. Glyphocrangon unguiculata, Wood-Mason. 



Glyphocrangon unguiculata, Wood-Mason, Ann. Mag. Nat. Hist., Feb. 1891, p. 193. 

 Illustrations op the Zoology of the Investigator, Crustacea, Plate VII. Fig. 2. 



Differs from G. investigatoris in the following characters : — 

 The length of the free portion of the rostrum is more than three-fourths 

 that of the rest of the carapace measured in the middle line ; the anterior of the 

 lateral spines is well abaft the middle, and the median dorsal ridge is hardly 

 distinguishable. 



Between the crests of the carapace there are only a few small scattered 

 granules, and these are hidden by the fine deciduous velvety pile by which the 

 surface of the carapace is covered. 



The " dorsal " and the ill-defined anterior half of the " subdorsal " crests are 



rugulose or bluntly crenulate, but all the other crests of the carapace are 

 smooth. 



The anterior half of the " subdorsal " crest ends anteriorly in a small spine, 

 as also does the anterior half of the 4th or " lateral " crest, the latter spine not 

 reaching anywhere near the anterior border of the carapace. 



