60 ME. T. SCOTT ON ENTOMOSTRACA 



This species is closely allied to Euchceta marina, but differs in several important 

 points and especially in tlie character of the fifth feet ; it also wants the prominent bifid 

 rostrum of that species. No females were observed. 



Etjch^ta hebes, var. valida. (PI. VI. figs. 20-22.) 



A form, which may be only a variety of Euchceta hebes, occurred along with that 

 species in a tow-net gathering from 50 fathoms at Station 2 (lat. 7° 54' N., long. 17° 25' W.). 

 But while resembling Euchceta hebes in general form and in the form of the fifth feet, it 

 differs in some of its structural details as well as by its much greater size. The following 

 is a description of some of its more obvious differences : — 



Length (male) 5*7 mm., of which the body forms two-thirds and the abdomen one- 

 third. Anterior antennte reaching somewhat beyond the last thoracic segment, 22- 

 jointed, sparingly setiferous ; the eighth joint, which is longer than the preceding 

 two together, and the seventeenth, eighteenth, and last are subequal, and are the longest 

 joints of the antenna?. The proportional lengths of the joints are nearly as shown in the 

 formtda : — 



12 . 12 . 5 ■ li ■ 7 . 8 . 9 ■ 19 ■ 6 ■ 8 ■ 11 ■ 10 . 13 ■ 14 ■ 15 ■ 10 . 19 ■ 19 ■ 16 ■ 16 ■ 15 ■ 19 

 i 2 3 4 5 6 7 S 9 lU 11 12 13 14 15 16 17 18 19 20 2,1 22" 



Between each of the large marginal teeth of the proximal half of the terminal spines 

 of the second, third, and fourth swimming-feet there is a very small tooth ; it can only 

 be satisfactorily distinguished by using a moderately high magnification (fig. 21). The 

 second joint of the (?) right foot of the fifth pair is moderately short and considerably 

 swollen, and bears interiorly at its distal end an appendage, the lengtli of which is rather 

 greater than the elongate third joint ; the fourth joint is very slender and as long as the 

 third, and terminates in a blunt-pointed extremity. The (?) left foot is 4-jointed, the 

 first joint is short, the second and third elongate ; the last, which is comparatively short, 

 ends in a complex trifid apparatus, somewhat similar to that of Euchceta hebes (fig. 22). 

 Abdomen slender, the last segment about two-thirds the length of the preceding. Stylets 

 short, thek breadth scarcely equal to the length ; the long seta — the third seta from the 

 outside — of each is at least equal in length to the abdomen. 



Genus Candace, Dana. 



Candacia, Dana, Amer. Journ. Sci. 1846. 

 Ifionyx, Kvoyer, Nat. Tidsskr. 1849. 

 Candace, Dana, U. S. Expl. Exped. 1853. 



Candace pachtdactyla, Dana. 



1852. Candace pachyihtctyla, Dana, U. S. Expl. Exped. p. 1113, pi. Ixxviii. figs. 2a-b. 

 1883. Candace pachydactyla, Brady, Report Cliall. Exped. p. 68, pi. xxxi. figs. 2-9. 



Habitat. Station 2, 5 fathoms tow-netting, January 1st (night collection). Lat. 4° 21' 

 8'' N., long. 1° 57' W., surface tow-netting, January 14th (day collection). Station 24, 

 10 fathoms, January 21st (night collection). Lagoon, Sao Thome Island, surface, 



