CRUSTACEA MALACOSTRACA. III. 



147 



The front area (figs. 5 b and 5 c) is well developed but somewhat short; its end is flatly rounded 

 or straight, but at each angle a spiniform acute tooth projects forwards. — First joint of the antennulse 

 (figs. 5 b) in the main as in E. complanata, a little broader than long, with the inner margin somewhat 

 convex, the inner distal lobe broad and shorter than broad; second joint inserted somewhat behind the 

 concave front margin of the first, middle-sized, and shorter than third joint. — Antennal squama (fig. 

 5 d, ex) small, only about one-third as long as the diameter of third antennal joint; its end is cut off 

 and bears a spine. — Maxillipeds (fig. 5 e) differ from those in E. incrmis or E. cornuta in having the 

 epipod broader with the distal subtriangular part less produced. 



Abdominal operculum of the female (fig. 5 h) somewhat similar to that in E. cornuta in the 

 feature that the median keel terminates considerably before both margins, but this highly vaulted 

 operculum has the carinate part of the lower margin, when seen from the side, nearly straight; seen 

 from below the operculum differs considerably from that of E. cornuta, as it is only somewhat broader 

 than long, broadest far before the middle, and from the narrowly rounded lateral angles the margins 

 converge backwards as partly moderately convex lines to the rather broadly rounded end. - - In the 

 male operculum the median lamella (fig. 5 f) differs mainly from that in E. cornuta in having the pro- 

 duced terminal part shorter and broader, without any outer tooth; the lateral plates (fig. 5 g) are about 

 half as long again as broad, thus conspicuously longer than in E. cornuta, and somewhat triangular in 

 outline, with the inner basal angle and the outer angle very broadly rounded, while its distal part is 

 shaped nearly as in E. cornuta, and the distal part of the inner margin crossing the coupling hook is 

 a little concave; second joint of the copulatory organ is a little shorter than the plate, with the pro- 

 portion between the distance to the base of the vesicle and the distance between this point and the 

 end nearly as in E. cornuta, but the distal fourth of the organ is much thicker than in this species. 

 — Uropods (fig. 5 i) short and thick; the peduncle without any lateral expansion; the endopod at most 

 a little longer than the peduncle, not three times as long as thick, nearly twice as thick as, but only 

 a little longer than, the exopod. 



Length of the largest female with marsupium (from Stat. 138) 27 mm., of the largest male 

 only 2-1 mm. 



Remarks. E. brcvirostris is easily separated from the preceding forms by a number of features; 

 especially the outline of the small body, the female operculum and the uropods afford good characters. 



Occurrence. Taken by the "Ingolf" at two stations in the cold and one station in the 

 warm area. 



South-West of Iceland: Stat. 78: Lat. 6o°37' N., Long. 27°52' W., 799 fath., temp. 4-5°; 2 spec. (poor). 



North-West of the Faeroes: Stat. 138: Lat. 63°26' N., Long. y°^& W., 471 fath., temp. -=- o-6°; 18 spec. 



East of Iceland: Stat. 103: Lat. 66°23' N., Long. 8°52' W., 579 fath., temp. ^o-6 c ; 1 spec. 



96. Eurycope producta G. O. Sars. 

 (PI. XIII, fig. 6 a). 



1866. Eurycope producta G. O. Sars, Nyt Magazin for Naturvid. Vol. 15, I, p. 113. (The whole volume 



dated 1868). 

 ! 1898. G. O. Sars, Account, II, p. 147 ; PI. 65. 



