240 



In Glyph. vicaria the tubercles of the first and second crests of the carapace are more 

 prominent and spiniform than even in Glyph. nobilis A. M.-Edw. (W. Faxon, l.c, 1896), 

 but in the latter they are more prominent than in Glyph. mcgalophthaliiia, as results from 

 the figure 2a of Plate 39 of the "Recueil de Figures de Crustacés nouveaux ou peu connus", 

 published by A. Milne-Edwards in April 1883. The anterior moiety of the 4 th crest is divided 

 in Glyph. vicaria by a deep notch, in the new species by a rather shallow one. 



As regards the shape of the abdominal somites and the number, the arrangement and 

 the relative size of the tubercles, with which they are covered, Glyph. megalophthalma resembles 

 Glyph. Sibogae, but the tubercles are all more or less distin ctly carinate, while 

 in Glyph. Sibogae they are rounded and obtuse. The form and the size of the pleura and of 

 the spines in which they end inferiorly, is like in Glyph. Sibogae. In the full-grown female 

 from Stat. 76 the telson reaches only by one-eighth of its length beyond the uropods, but in 

 the other female, long 74 mm., from the same Station by one-fourth, in the male from Stat. 208 

 by one-fifth and in the youngest specimen from Stat. 48 by one-third; only a small part near 

 the tip is slightly curved upward, a more or less compressed tooth stands at the base, and 

 the lateral margins are in the full-grown female quite smooth proximally as in the two youngest 

 specimens, but in the male and in the other female from Stat. 76 traces of a fine serrulation 

 are discernible. 



The eyes, that are light leather-coloured, not dark, are, especially in 

 proportion to the rostrum, of a large size; in the full-grown female the proportion 

 between the length of the carapace, including the rostrum, and the greatest diameter of the 

 eye is as 6,4 : 1, in the other female from the same Station as 7,4 : 1, in the male as 7,1 : 1 

 and in the larger specimen from Stat. 48 like 7,6: 1, while in the youngest specimen, long 

 55 mm., the greatest diameter measures only */ 9 tne distance of the tip of the rostrum to the 

 posterior border of the carapace. In the full-grown female the proportion between the length 

 of the rostrum and the greatest diameter of the -eye is as 2,5 : 1, in the male like 3,1 : 1 and 

 in the youngest specimen as 4,6 : 1, the eye appearing in the young specimens relatively much 

 smaller than in the adult. 



Both in the male and in the female the antennular peduncle projects with the terminal 

 joint beyond the antennal scale; in the adult female the 2 nd joint is 3-times as long as thick 

 in the middle and about twice as long as the terminal joint, in the male the peduncle has a 

 stouter shape, the 2 nd joint is not yet twice as long as thick in the middle and the terminal 

 joint, that is just as long as broad anteriorly, is but little shorter than the 2 nd . Outer 

 flagellum, as usual, in the male more enlarged than in the female. 



Antennal peduncle in the male as long as the antennal scale, in the female little shorter 

 than it; it has in the male a less slender shape than in the female. The antennal scale (Fig. bob) 

 measures in the male one-fourth, in the full-grown female a little more than one-fourth the 

 length of the carapace, rostrum included ; the scale, in the male twice, in the full-grown female 

 almost twice as long as broad, has an oval shape, the inner margin is not more strongly 

 curved than the outer, that shows nearly at the proximal third a microscopical spinule or 

 prominence. Different from all other species, known to me, both margins show, not far from 



