10 



30 



20 



10 



30- 



20 



10 



30 



20 



10 



30 



20 



10 



10 



C.I. 9-15 



C.I. 16-22 



N = 16 



N = 57 



C.I. 23-29 



N = 67 



C.I. 30-36 



N = 66 



C.I. 37-43 



N = 45 



C.I. 44-51 



N=23 



1.25 



2.00 



2.75 



3.50 



4.25 



Figure 72. — Frequency distribution of keel-suleus 

 (K/S) values (both sexes inclufled) in PoincKS (.U. ) 

 hraxiUrnsifi Lat. of different size clas.ses from the 

 cojist of South America. 



Figure 73. — Percentage of distribution of lieel-sulcus 

 (K/S) values in Pcnaciis (-1/.) brasilicthsis Lat. from 

 the West Indies, Central America, eastern United 

 States, and the Bermudas. 



mately lat. 24°54' N., long. 82°15' W., in water 

 13 fm. deep (Milton J. Lindner, personal com- 

 munication) . 



P. hrasiliensis apparently is not abundant in tlie 

 Greater Antilles, although it is taken with P. a. 

 nuhtUis through the Lesser Antilles, whereas P. 

 schinitti seems to be extremely rare and P.d. noti- 

 alis has not been recorded. The 1-year sampling 

 carried out by Perez Farfante et al. (1961) at 

 Laguna Doctor, Playa de Baracoa, Cuba, showed 

 that P. hrasilicnsis is the least common among the 

 shrimp living in this body of water, making up 

 only 10 percent of the total sample. This percent- 

 age seems to be representative of the relative 

 abundance of the species, at least in northern 

 Cuba. Although present along the southern coast 

 of the island, P. hramliensis is extremely scarce. I 

 found only a very few individuals in the stomach 

 of snappers (Lutjanidae). The three specimens 

 listed by Boone (1930) as "P. 'brasiUensis''' from 

 Cuba, two from the "south coast" and a third from 

 Guantanamo, I found to be P. d. notialis. 



Holthuis (1959) reported that in Surinam P. 

 brasiUensis is far less common in shallow water 



570 



U.S. FISH AND WILDLIFE SERVICE 



