40 



30- 





o 



z 20 



to 



Z) 



Q. 

 < 



10 



• P. a.aztecus 

 o P. d.duorarum 

 D R brasiliensis 







.nut 



\« •••• 



• • O O o 



•• ^ on 0< 



D 



D n oo 



o 



• "o 

 •d oca 



• — 



D _ D 



• D 



• D 

 <• 

 O 



OO □ 



n no. 



• •• o n^no° 



DIOOO Q 



° □ 



o'- 



HI 



) oo 



<a o 



o o 

 o 



afia 8 



o 



•••cs 



>«f 



_L 



_L 



_L 



_L 



10 15 20 25 30 35 



CARAPACE LENGTH (MM.) 



40 



45 



50 



55 



FiGTjRE 29. — Carpus length-carapace len^h relation in Penaeiis (M.) astccus aztecus Ives, Penaens {M.) dnorarum 



duorarum Burkenroad, and Penaens (M.) brasiliensis Lat. 



Table 2. — Ranges of lengths of distal five podomeres of first pereopod in P. a. aztecus, P. d. duorarum, and P. brasiliensis of 



indicated intervals of carapace length 

 [Based upon a minimum of 30 specimens for each subspecies and species] 



WESTERN ATLANTIC SHRIMPS OF GENUS PENAEUS 



511 



