Choi and Hong: Larval development of Metapenaeopsis da/ei 
291 
Table 3 
Comparison of larval morphological characteristics of Metapenaeopsis palmensis, M. stridulans, M. barbata, and M. dalei. 
Developmental stage 
Characters 
M. palmensis 
(Jackson et al., 
1989) 
M. stridulans 
(Chong and 
Sasekumar, 
1994) 
M. barbata 
(Ronquillo 
and 
Saisho, 1997) 
M. dalei 
(the present 
study) 
Egg 
diameter (mm) 
— 
0.697-0.729 
0.220-0.570 
0.325-0.375 
Nauplius 
shape 
— 
pandulate 
oval 
oval 
Third stage protozoea 
dorsomedian abdominal spines 
5 
3 
3 
5 
First stage my sis 
posterior ventral serrations 
on the carapace 
absent 
absent 
absent 
present 
Third stage mysis 
statocyst 
present 
absent 
present 
present 
First stage postlarva 
scaphognathite setae in maxilla 
20 
21 
30-31 
43 
scaphocerite spines on outer 
margine of antenna 
1 
2 
2, 2,0, 0,0 
3 
thoracic sternal plate spines 
2, 2,0, 0,0 
— 
2,2,0, 1, 1 
2 
Acknowledgments 
We are grateful to D. I. Williamson (Port Erin Marine Bio- 
logical Station, Isle of Man, U.K. ) and C. Sankarankutty 
(Universidade Federal do Rio Grande do Norte, Natal, 
Brazil) for critical reading of the manuscript. We thank H. 
K. Cha for collecting the gravid females of Metapenaeop- 
sis dalei. We express our gratitude to the head of Taean 
Fish Hatchery, NFRDI, for providing us with experimental 
facilities. The authors wish to acknowledge the financial 
support of the Korea Research Foundation made in pro- 
gram year of ( 1998). 
Literature cited 
Chong, V. C., and A. Sasekumar. 
1994. Larval development of the fiddler shrimp, Metapenae- 
opsis stridulans (Alcock, 1905) reared in the laboratory. J. 
Nat. Hist., London 28:1265-1285. 
Dali, W., B. J. Hill, P. C. Rothlisberg, and D. J. Sharpies. 
1990. In The biology of the Penaeidae: advances in marine 
biology, vol. 27 (J. H. S. Blaxter and A. J. Southward, eds.), 
p. 1-488. Academic Press, London. 
Jackson, C. J., P. C. Rothlisberg, R. C. Pendrey, and M. T. Beamish. 
1989. A key to genera of the penaeid larvae and early post- 
larvae of the Indo-west Pacific Region, with descriptions 
of the larval development of Atypopenaeus fonnosus Dali 
and Metapenaeopsis palmensis Haswell (Decapoda: Penae- 
oidea: Penaeidae) reared in the laboratory. Fish. Bull. 
87:703-733. 
Kim, H. S. 
1977. Illustrated encyclopaedia of flora and fauna of Korea. 
Macrura. Samhwa Publ. Co., Seoul, vol. 19, p. 127-131. 
Kubo, I. 
1949. Studies on penaeids of Japanese and its adjacent 
waters. J. Tokyo Coll. Fish. 36:1-467. 
Paulinose, V. T. 
1988. Decapod Crustacea from the international Indian 
Ocean Expedition: larval and postlarval stages of 3 spe- 
cies of Metapenaeopsis Bouvier ( Penaeidae: Penaeinae). J. 
Nat. Hist., London 22:1565-1577. 
Perez Farfante, I., and B. Kensley. 
1997. Penaeoid and sergestoid shrimps and prawns of the 
world. Keys and diagnoses for the families and genera. 
Mem. Mus. Nat’l d’Hist. Nat., Paris 175:1-233. 
Ronquillo, J. D., and T. Saisho. 
1997. Larval development of Metapenaeopsis barbata (De 
Haan, 1844) (Crustacean: Decapoda: Penaeidae). Aust. J. 
Mar. Freshwater Res. 48:401-414. 
