72 U.S. NATIONAL MUSEUM BULLETIN 292 



1. Vertical-band Pattern, Blue Phase (fig. 12a): Anterodorsal part 

 of carapace and rostrum mostly dark bluish gray fading ventrally to 

 lavender cream; rostral spines corneous (yeUow). Narrow vertical 

 white band on anterior margin of carapace from antennal spine to 

 level of lower portion of antennal peduncle. Posterior half of carapace 

 with broad, transverse, white or cream band subtended immediately 

 anteriorly by nari'ow black band fading anteriorly into bluish-gray 

 area; immediately posterior to white band, black one reaching posterior 



Figure 13. — Micratya poeyi: a, probable first larval stage in lateral view; b, telson of same 



in dorsal view. 



border of carapace and fading ventrally to dark gray. Suboval pale 

 gray spot immediately anterior to anterior black band. Abdomen 

 mostly bluish gray with reddish-purple spots at articular knobs of 

 segments 1 through 4. Posteroventral angle of fourth pleuron white. 

 Fifth tergum black anteriorly with narrow white band dorsally expand- 

 ing on lateral portions of tergum and narrowing on pleiu-on where 

 restricted to anteroventral portion. Posterior portion of sixth tergum 

 with narrow white or cream transverse band extending ventrally 

 onto posterolateral pai't of somite. Lateral spine on base of m'opod 



