studies on marine Oslracods 



417 



they are very weak and have no free points. The cavity situated dorsally of the end comb 

 is rather deep and is furnished dorsally with three moderately long, claviform, smooth, chitinous 

 pegs (fig. 8). 



Turca (fig. 5): — This has ten claws, diminishing in length posteriorly, without any 

 clear division into main claws and secondary claws. Claws nos. 2 to 4 are rather decidedly 

 bent; this bending varies, liowever, to some extent. The five anterior claws have a proximal- 

 medial group of long, stiff bristles, the posterior ones have no such bristles. Medially close to 



Fig. LXXVl. — Ph. (Philomedcs) rotunda n. sp., $. — 7. Sevoiidi limb; 248 X. 8. Distal pari of lliis limb; the brislks 



are broken; 680 X. 



the claws there are on tlie iamellae sparsely scattered stiff bristles varying in length and miiubor. 

 In front of the first claw and behind the posterior one the lamellae are furnished with short, 

 fine hairs; apart from these they are most frequently quite smooth. 



R o d - s h a p e d o r g a n (fig. 6): — This organ is about 0,5 mm. lung. It is finely 

 pointed distally. Somewhat proximally of the middle of the organ a rather considerable portion 

 of it is thin-walled; at this part the organ is flexible. There is no division into joints at all. 

 It is smooth. 



The m ale is unknown. 



/.oolog. biilnig, Uprsala. Sii|i|il.-Iiil. I. 



5:! 



