FISHERY BULLETIN; VOL. 87. NO. 3. 1989 



diameter of basal segment of 1st antenna. 

 Carapace length about half total length. Long 

 labral spine (Fig. 8b). As in A. fortnosus, seg- 

 mentation of 1st and 2nd maxillipeds variable 

 and often indistinct (Fig. 8h, i). Second sub- 

 stage (Fig. 9) with long, down-curved rostrum 

 extending beyond tip of eye. Two pairs of su- 

 praorbital spines. Both 1st and 2nd antennae 



stouter than A. fonnosus (Fig. 9b, c). In 3rd 

 substage (Fig. 10) the inner supraorbital spines 

 have almost disappeared, leaving only a pro- 

 trusion in the carapace border or sometimes 1 

 or 2 small denticles (Fig. lOaj). Outer supra- 

 orbital spines remain distinct. Dorsal spines 

 present on first 5 abdominal segments; lateral 

 spines on 5th and 6th segments (Fig. 10a). 



Figure 9. — Metapenaeopsis palnwnsis protozoea II. (a) whole animal, (b) 1st antenna, (c) 2n(l antenna, (d) mandibles, (e) 

 1st maxilla, (f) 2nd maxilla, (g) 1st maxilliped, (h) 2nd maxilliped, (i) 3rd maxilliped. Scale = 0.1 mm. 



718 



