Hawaiian Stomatopods — Townsley 
427 
Fig. 22. Larval forms of Squilla. a, Dorsal vie'w of pseudozoea, first abdominal appendage and telson (probably 
S. oratorio)-, b, dorsal aspect of alima larva and first abdominal appendage (probably S. oratorio)-, c, ventral aspect 
of alima larva (probably 5. oratorio)-, d, dorsal aspect of alima larva, first abdominal appendage and uropod 
{Squilla sp.). 
scale present but flagella absent; carapace very 
clear, covering nearly 0.5 the entire body, this 
relationship remaining the same throughout 
successive stages; anterior margin of carapace 
trispinous, posterior margin with two pos- 
terolateral spines and small zoeal spine be- 
tween them; lateral margins of carapace usual- 
ly armed with three laterally directed and two 
ventrally directed denticles, small denticle at 
base of posterolateral spines; abdomen com- 
pletely segmented, sixth abdominal somite 
indistinct; four pairs of biramous pleopods 
without gills, fifth pair represented by small 
buds; no uropods; telson longer than wide 
with 11 or 12 denticles between submedian 
denticles and four between lateral and sub- 
median denticles. 
The specimens range in size from 5.5 to 
8.0 mm. from the tip of the rostral spine to 
the posterior margin of the telson. This stage 
has been taken in plankton tows in the waters 
around Oahu throughout the year, most 
abundantly during the summer months. 
STAGE 2 (Fig. 22b ) : This larval form is sim- 
ilar to the preceding stage except for a con- 
spicuous change in size, the animals now 
measuring 15 to 20 mm. Body proportions 
remain the same, carapace still covering nearly 
0.5 total length of body; antennal flagella 
present; third, fourth, and fifth thoracic ap- 
