690 Brady and Noeman — Monograph of the Marine and Freshwater Ostracoda 



6. Conchcecia striolata, Gr. 0. Sars. 



1887. Conchcecia striolata, . . Saes, G. O., " Nye Bidrag til Kundskaben om 



Middelhavets Invertebratfauna : iv. Ostracoda 

 Mediterranea," p. 84, pi. xiv., figs. 1-5. 



Shell of the male subventricose ; seen from the side rather narrow, oblong, twice 

 as long as broad, lowest in front ; dorsal margin slightly depressed in the middle, 

 ventral forming a continuous curve with the anterior extremity ; posterior margin 

 rectangularly truncate, its upper angle prominent; rostral process horizontal, 

 sinus wide, and almost rectangular. Valves not pellucid ; everywhere distinctly 

 marked with decussating striae. Appendages almost exactly as in C. magna ; 

 ungues of the caudal laminae, however, stronger, and densely ciliated behind. 

 Length, 2'36 mm. Female unknown. 



Messina (Gr. 0. Sars). 



7. Conchcecia Haddoui, n. sp. 



(Plate Lxiv., figs. 6-16.) 



Shell of the female elongated, subquadrate, not much liigher behind than in 

 front, heiglit equal to considerably less than half the length ; anterior margin 

 moderately prominent below the rostral sinus, which is rather wide and shallow ; 

 beak stout and acuminate at extremity ; ventral margin evenly curved ; dorsal 

 somewhat sinuous, and obscurely crenated towards the hinder end ; posterior 

 subtruncate, rounded oil below, and subangular, but not spinous dorsally. Shell 

 surface for the most part striated, the stria; anastomosing irregularly at distant 

 intervals (fig. 8), but within the antero- ventral, and, less distinctly, towards the 

 postero-dorsal borders, closely reticulated with a small rhomboidal or pentagonal 

 sculpture (fig. 7). Frontal tentacle of the female stout; capitulum (fig. 9) slightly 

 curvate, slightly swollen at the base, and tapering to a narrowly rounded extre- 

 mity, beset over the whole surface with short, distant, hair-like sjjinules ; that of 

 the male (fig. 10) similar, but very much more dilated at the base. The principal 

 seta of the antennule in the male bears on its middle third a series of about thirty 

 pairs (fig. 14) of very minute aculeate and reflexed spinules. Secondary branch 

 of the antenna having a well developed narrow and subacute " mamillary " 

 pi-ocess, the distal prominence bearing two stout, short setae ; in the female there 

 are five setai, none of which are of the sensory kind, two of them long, the 

 remaining three about half as long as the principal setae. In the male (fig. 15) 



