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PACIFIC SCIENCE, Vol. VII, October, 1953 
Fig. 13. Pseudosquilla oculata (Brulle), right first ab- 
dominal appendage of male. 
well with those of P. ciliata (cf. Figs. 11^ and 
12). The spine-tipped rostrum, the extra pair 
of carinae on the telson, and the longer outer 
spine of the uropod will all serve to place 
specimens in this species. 
This species is common in Hawaii: the 
Bishop Museum collection has live males and 
six females, and in addition I have examined 
one male and four females. The largest spec- 
imen was a male 70 mm. long, and the small- 
est was 35 mm. long. All specimens were 
collected at Oahu in shallow water together 
with specimens of P. ciliata. 
Variability in color and form does not seem 
to be pronounced in this species. One spec- 
imen has 11 spines on the outer margin of the 
exopod of one uropod and 10 on the other. 
This variation parallels the condition found 
in P. ciliata and indicates that this chracteristic 
is quite variable. 
There is no clear sexual dimorphism. The 
accessory reproductive organ on the first ab- 
dominal appendage of the male is shown in 
Figure 13. If it is compared with Figure 11/, 
it can be seen that both P. oculata and P. ciliata 
are very similar with respect to this structure. 
Possibly this indicates strong affinities. 
DISTRIBUTION: This species and P. ciliata 
have been found in the Hawaiian Islands. As 
mentioned previously, P. oculata is found in 
the same environment as P. ciliata. Specimens 
are recorded from Samoa and Hawaii in the 
Pacific, from the Macclesfield Bank in the 
South China Sea, from Mauritius in the In- 
dian Ocean, and from the Cape Verde Islands 
and Madeira in the Atlantic. 
Lysiosquilla maculata (Fabricius) 
Figs. 14, 15^-g ! 
Squilla arenaria terrestris or locusta Rumphius, I 
1705: 4, pi. 3, fig. E. ; 
Squilla maculata Fabricius, 1793: 511. ; 
Cancer {mantis) [sic] arenarius Herbst, 1796: | 
96, pi. 33, fig. 2. 
Squilla arenaria Randall, 1839: 146. j 
DESCRIPTION: Carapace nearly as broad as | 
long, anterior breadth equal to posterior ! 
breadth, smooth, strongly convex from side I 
to side, gastric grooves distinct, cervical jj 
groove obsolete or wholly absent, no longi- i 
tudinal carinae, anterolateral and postero- jj 
lateral angles broadly rounded. Rostrum j 
broader than long, smooth, lateral margins I 
convergent anteriorly to an acute but blunt 
apex, small longitudinal carina on anterior 
one third. Ophthalmic somite anteriorly ex- j 
posed, dorsally produced into a pair of lobes i 
terminating acutely on each side of rostral |i 
apex. Eyes large; cornea set obliquely on |! 
stalk, breadth about equal to greatest length 
of cornea and stalk combined. Antennular I 
peduncle with small acute dorsal spine, less I 
than one-half length of carapace, excluding | 
rostrum. Ischio-meral articulation of raptorial j! 
claw terminal; merus grooved ventrally 
throughout its length for reception of pro- 
podus; carpus with blunt dorsal carina ter- 
minating in a sharp spine which overhangs 
anterior margin; propodus finely pectinate on 
upper margin, four movable spines near prox- 
imal end; dactylus slender, 9 to 11 teeth 
(usually 10), outer margin straight or slightly 
