Zoeal Stages and Glaucothoe of Trizopagurus magni ficus — Provenzano 
463 
I II III IV G 
Fig. 3. Trizopagurus magnificus. Top , the antennule of zoeae I-IV and glaucothoe; bottom, the antenna 
of zoeae I-IV and glaucothoe. 
processes and 3 subterminal setae at approxi- 
mately the location of the future articulation of 
the rami. 
The antenna has changed little, adding only 
a seta on the scale and a small tooth at the 
base of the scale. 
The mandibles are not changed significantly. 
The maxillule now has 4 strong teeth on 
the distal endite instead of 2. There may be 
a very short seta on the proximal segment 
of the endopodite, but usually it is not dis- 
cernible. 
The maxilla has added 1 or 2 setae to the 
scaphognathite and 1 or 2 setae to some of 
the basal and coxal endites. 
The first maxilliped has added 2 natatory 
setae to the exopodite. The endopodite has 
lost the row of extremely fine setules on the 
lateral margins of the segments and has added 
to the three most proximal segments a single 
