NEW MAEINE ISOPODS — MENZIES 



107 



Fourth and fifth somites similar in length, being one-fourth longer 

 than third somite and having a pit located anteriorly on each side of 

 dorsolateral peraeon margin. Seventh somite one-half the length of 

 sixth. 



Figure 9.—Para7ithura elegans, new species: Holotype. (Magnification as indicated 



by scale.) 



PZeon.— Demarcation of somites visible in dorsal view. First four 

 somites similar in length. Fifth somite three times the length of 

 fourth. Sixth somite with a pronounced posterior median cleft. 

 Telson elongate, with an evenly convex setif erous posterior margin and 

 finely serrate posterolateral borders. 



First antenna.— Composed of eight joints. Fourth joint deeply 

 immersed in distal part of third joint. 



