142 



STALK-EYED CRUSTACEA. 



This species, whieh was captured near the shores of the Galapagos 



r 



Islands^ is comparable with G, aculeata A. M. Edw.; G. regatis Bate, G, in- 

 vedujatoris W.-M., and G. smithii W.-M. It dilTers from all of these in having 

 three ^diTB of rostral spines In front of the gastro-frontal sulcus^ and in the 

 length, slenderness, and strong outward trend of the hepatic spines. It dif- 

 fers furthermore from G. aciileaia and G. invedigatoris "in being much more 

 lightly tuberculated ; froui G. amleata and G. smilhii in lacking the spine at 

 anterior end of the third carapacial carina, behind the cervical groove; from 

 all of the above-named species, except G. invcdiyatorisy in the spiny arma- 

 ture of the telson. 



Glyphocrangon nobilis A. M. Edw. ? 



? Glyphocrangon nohile A. M. Ed\^., Ann. Sci. Nat., ZooL, 6*^^^ Sen, Yol. XL, No. 4, p. 5, 1881 ; Eecuoil clc 



Eigures de Crustacea nouveaux ou pcu connus, 1883 (fig-)- 



Station 3363. 978 fathoms. 2 specimens. 



u 



a 



u 



a 



a 



u 



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6i 



a 



a 



3366. 1067 

 3371. 



3375. 



3376. 



770 



1201 

 1132 

 3392. 1270 

 3400. 1322 

 3411. 1189 

 3413. 1360 



3419. 



3431. 



772 

 995 



i£ 



U 



U 



u 



ii 



u 



ii 



u 



a 



u 



1 



4 

 1 

 1 



2 

 1 



4 

 3 

 3 

 1 



a 



a 



u 



■ a 



ic 



a 



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Of Glyphocrangon nohilis A. M. Edw., I have only small, immature speci- 

 mens before me, and I am not sure that the ^^ Albatross" specimens here 

 referred to this species are really the same. In any event they are very 

 closely allied. In typical specimens of the '^ Albatross'' species^ the distance 

 from the tip of the rostrum to the small tubercle that lies in the median dorsal 

 line at the anterior boundary of the gastric region is equal to the distance of 

 this tubercle from the posterior margin of the carapace, measured along the 

 median dorsal line. But the length of the rostrum varies to a considerable 

 degree in different specimens. When it attains its maximum length, the dis- 

 tance from the tip to the basal lateral spines alone equals the length of the 

 rest of the carapace, measured along the median line. The margins are 

 thickened and concave between the two pairs of lateral spines. A median 



> 



