37© DISCOVERY REPORTS 



The two outer pairs of postero-lateral spines on the telson are much reduced while the inner pair 

 has increased considerably in size. 



The number of terminal spines has been reduced to three. 



Nematoscelis megalops G. O. Sars 



Egg. 0-41-0-43 mm. in formalin (Fig. 20a, b). 



There is a moderately large perivitelline space between the egg contents and the thin, transparent 

 membrane. Just before hatching the first nauplius can be clearly seen, and it now completely fills 

 the interior of the egg-capsule. 



0-5mm 



Fig. 20. Nematoscelis megalops. a, egg; b, egg containing nauplius prior to hatching; c, nauplius, dorsal view; d, nauplius, 

 lateral view ; e , pseudometanauplius, lateral view ; /, pseudometanauplius, ventral view. 



Nauplius. 0-43-0-53 mm. Six specimens examined (Fig. 20 c, d). 



The body is round-oval in dorsal aspect with no appendages or processes at the posterior end. 



The first antennae are uniramous, with four setae. 



The second antennae are biramous, the branches having five and six setae respectively. 



