610 



Fig. 1. Hyperia curticephala (after Vinogradov and Semenova, 1985). 



Peru (up to 200 miles from shore), in the area of the Nasca ridge, and 

 in the Indian Ocean near the shores of southeastern Africa. 



2. Lestrigonus ducrayi Zeidler, 1992 (Figure 2) 



Males 2.8 mm, females 3.3 mm. 



This new species closely resembles L. bengalensis, but is most read- 

 ily distinguished by its relatively shorter telson. In L. bengalensis, the 

 ratio of the telson length to the peduncle of urosome III ranges from 

 0.45 to 0.66 with a mean of 0.54 ± 0.01 (95% CI, N = 50) for females 

 and from 0.46 to 0.64 with a mean of 0.56 ±0.01 (95% CI, N = 50) for 

 males. Like L. bengalensis, mature males of L. ducrayi have relatively 

 shorter telsons than females. 



Other characters that distinguish the new species from L. bengalensis 

 are as follows. Pereonites I through V are fused in both sexes. The dorsal 

 curvature of the pereon is more even in L. bengalensis. The gnathopods 

 of L. bengalensis have only one anterodistal spine on article 6 and the 

 carpal process (article 5) of pereopod II is only about half as long as 

 article 6. 



Pereopoda III and IV of L. bengalensis usually have only one promi- 

 nent posterodistal spine on article 5. Pereopods V-VII of L. bengalensis 

 normally have a prominent spine overlapping the inner face of the dactyl; 



