COOK, and MURPHY: DF.VELOPMENTAL STAGES OF BROWN SHRIMP 



Table 1. — Comparison between published description of 

 P, duorarutn and specimens examined by authors 



Substage and 

 body port 



Nauplius 111 

 Antenna I 



Caudal spines 

 Nauplius IV 



Caudal spines 

 Nauplius V 

 Antenna I 



Protozoea I 

 Antenna I 



Protozoea II and 111 



Antenna 1 



Mysis 



Sixth abdominal 

 segment 



Protopod of uropod 



Dobkin (1961) 



Cook and Murphy 



No mention of postero- A minute posteroloteral 

 loteral seta. spine may be present. 



Three pairs. 



Three or four pairs. 



Two anterolateral and 

 no posterolateral 

 spines. 



Five pairs. 



Two posterolateral 

 setae. 



Two or three anterolat- 

 eral spines. Minute pos- 

 teroloteral spine may be 

 present. 



Six pairs. 



Two or three postero- 

 lateral spines. 



Five terminal and sub- Six terminal and sub- 

 terminal setae. No terminal setae. Middle 

 posterolateral seta on segment with short pos- 

 middle segment. terololeral seta. 



Five terminal and sub- Seven terminal and sub- 

 terminal setae. terminol setae. 



Two pairs of postero- 

 lateral spines. 



Three spines on distal 

 margin. 



One pair of posterolat- 

 eral spines. 



Two spines on distal 

 margin. 



would seem that the editors were correct and 

 that the figures presented are species of Trachy- 

 penaeus. 



LITERATURE CITED 



Cook, Harry L. 



1966. A generic key to the protozoean, mysis, and 

 postlarval stages of the littoral Penaeidae of the 

 northwestern Gulf of Mexico. U.S. Fish Wildl. 

 Ser\'., Fish. Bull. 65(2) : 4.37-447. 



1969. A method of rearing penaeid larvae for ex- 

 perimental studies. In M. N. Mitakidis (ed.). 

 Proceedings of the world scientific conference on 

 the biology and culture of shrimps and prawns, 

 FAO (Food Agr. Organ. U.N.) Fish. Rep. 57, 

 3: 709-715. 

 Cook, Harry L., and M. Alice Murphy. 



1966. Rearing penaeid shrimp from eggs to post- 

 larvae. Proc. 19th Annu. Conf. Southeast. Ass. 

 Game Fish Comm., p. 283-288. 



1969. The culture of larval penaeid shrimp. Trans. 

 Amer. Fish. Soc. 98(4): 751-754. 

 Dobkin, Sheldon. 



1961. Early developmental stages of pink shrimp, 

 Penaeus duorarum, from Florida waters. U.S. 

 Fish Wildl. Serv., Fish. Bull. 61 : 321-349. 

 Heegaard, Poul E. 



1953. Observation on spawning and larval history 

 of the shrimp, Pendens fseti ferns (L.). Publ. Inst. 

 Mar. Sci., Univ. Tex. 3(1) : 73-105. 

 Pearson, John C. 



1939. The early life histories of some American 

 Penaeidae, chiefly the commercial shrimp, Penneus 

 setiferus (Linn.). Bull. U.S. Bur. Fish. 49(30): 

 1-73. 



239 



