684 Brady and Norman — Monograph of the 3farine and Freshwater Ostracoda 



much stronger, concealed within the valves, ending in three very long, and nearly 

 equal curved seta;: in both sexes the basal joint bears a setiferous (branchial) 

 lamina. Last pair of feet very small, two-jointed, reflexed, bearing two tei-minal 

 setae, one of which is very long, the other short. Caudal laminje short, rounded, 

 posterior margin bearing a series of curved spines, and on the middle of the anterior 

 margin a single long and slender curved spine. Copulative organ of the male 

 oblong, with entire apex. 



1. Conchoecia elegans, G. 0. Sars. 



(PI. Lx., fig. 23 ; PI. Lxv., figs. 11-22.) 



1865. Conchoecia elegans, . . Saks, G. 0., " Oversigt af Norges marine Ostra- 



coder," p. 117. 



1890. Par aconchoecia gracilis, . Claus, "Die Gattungen und Arten der mediter- 



I'anen und atlantischen Halocypriden," p. 15. 



1891. ,, ,, . Claus, " Die Halocypriden des atlantischen Oceans 



und Mittelmeei'es," p. 66, pi. xii. 



Shell of the female, seen laterally, elongated, sub-cuneiform, greatest height 

 somewhat behind the middle and equal to less than half the length ; rostrum 

 large, and acutely pointed, with a subjacent, large, rectangular notch; dorsal 

 margin straight, ventral moderately convex ; j^osterior extremity much wider than 

 the anterior, sub-truncate and almost rectangular, the lower angle rounded off. 

 The valve of the right side is produced at the posterior dorsal angle into a short 

 spine, which is armed on its upper margin with four small backward-pointing 

 teeth. Seen from above the outline is narrow, ovate, greatest width behind the 

 middle, (jbtuse in front, moderately pointed behind. Shell of the male somewhat 

 more elongated, about thrice as long as high ; rostrum sharper and more curved ; 

 posterior angle scarcely so prominent. Valves straw-coloured, marked with 

 numerous closely-packed decussating striae, the body of the animal showing 

 through in deeply-coloured yellowish-brown patches.* Antennules of the female 

 small and weak ; those of the male (fig. 12) much larger, the first two joints large 

 and muscular, the last two extremely small and bearing setae very unlike those 

 of the female, one of them being very short, another elongated, very thick, obtuse, 

 and turned backwards in opposition to the antennule, the remaining three setae 

 long, slender, and nearly equal in length. In the male beyond the middle of the 



* In spirit specimens, wliicli alone we have had the opportunity of examining, the malts are a deep, 

 vinous or brownish-red, the females opaque, yellowish or tawny-white. Prof. G. 0. Sijrs says, " f ulvo- 

 rubido pigmentatum." 



