132 



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, and the median 

 dorsal ridge is so fine as to be hardly distinguishable. 



The antennal scale is not so broadly oval, its breadth being about four- 

 sevenths its length. 



The external maxillipeds do not reach the tip of the antennal scale. 



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

 do not reach the tips of the external maxillipeds. 

 Colour in life, pale salmon red. 



In the largest specimen the carapace (rostrum included) is 33 millim. in 

 length, the abdomen 42 millim., measured in the middle line 



Bay of Bengal,, off Ceylon, 594-225, and 009 fathoms. The Challenger 

 specimens were dredged off Japan. 



9220 3822-3824 



Regd. Nos. 



10 



79. Glypliocrangon Gilesii, Wood-Mason. 



CI ypliocrangoii Qilesii, YVood-Muson, Ann. Mag. Nat. Hint., Feb. 189], p. 193. 

 Illustkations ok the Zoology ok the Investigator, Crustacea, Plate VII. Pig. t. 



Differs from 67 investigatoris in the following points : — 



The anterior half of the 3rd or dorso-lateral crest of the carapace is present 

 as in G. hastacauda, but instead of being continuous with the pre-eminently large 

 orbital spine, as it is in 67. hastacauda, it ends in a small spine lying immediately 

 behind the orbital spine. 



The anterior half of the 2nd or "subdorsal" crest is broken up into from 

 2 to 4 teeth of which only the front one is acute, and the anterior half of the 

 4th or "lateral " ci'est ends in a small spine; but, except for this, all the crests 

 of the carapace are smooth to the naked eye. 



The surface between the crests of the carapace is perfectly smooth and 

 dead-polished. 



The dorsal surface of the abdomen is merely wrinkled, though the last two 

 somites are more deeply rugose. The abdominal carina?, though corresponding 

 with those of 67. investigatoris, are much lower and blunter, being quite inconspic- 

 uous on the 2nd, 3rd and anterior half of the 4th somites. 



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

 the rest of the carapace measured in the middle line : the median dorsal ridge 

 of the rostrum is indistinguishable. 



The antennal scale is elongate-oval, its length being twice its breadth. 



The external maxillipeds do not reach the tip of the antennal scale. The 



