408 
PACIFIC SCIENCE, Vol. VII, October, 1953 
abdominal somite between the lateral and 
marginal carinae and the outer angles of the 
sixth somite are black in all three of these 
specimens, as well as in Kemp’s type spec- 
imen. No mention of the color of Fukuda’s 
specimen was made. The three local spec- 
imens vary from 68 to 75 mm.; Kemp’s was 
89 mm., and Fukuda’s 40 mm. 
DISCUSSION: One male and two female spec- 
imens of this species have been examined. 
They were taken from the stomach contents 
of black skipjack, Eiithynnus yaito Kishinouye, 
caught off Moku Manu [Island] off the north- 
east coast of Oahu. One specimen, a male, 
was but slightly digested, so the characteris- 
tics given by Kemp for this species could be 
easily recognized. 
5. hoops can be readily distinguished from 
S. oratoria by its smaller size and by the pres- 
ence of only five teeth on the raptorial dac- 
tylus and only seven spines on the outer 
margin of the uropod. Early in this study it 
was thought that these were small specimens 
of S. oratoria, but the differences noted above 
have shown them to be the adults of Kemp’s 
Squilla hoops. 
Kemp and Fukuda’s specimens were both 
females; thus previously no description has 
been made of the modified accessory repro- 
ductive organ of the male found on the first 
abdominal appendage. However, Kemp’s 
(1913) figures of the female have been useful 
in identifying the present specimens, which 
I consider conspecific. 
DISTRIBUTION: The type specimen, a female, 
was taken by the "Investigator” in the Gulf 
of Martaban, Burma, at a depth of 67 fathoms. 
Another female was collected at Matsuwa, 
Sagami Province, Japan. One male and two 
females have been obtained from the stomach 
contents of a black skipjack {Eiithynnus yaito') 
caught off Moku Manu (Bird Island), Oahu. 
Squilla alba Bigelow 
Figs. 6, la-f 
Squilla alhaEigdow, 1893: 103; 1894: 539-541, 
pi. 22. [Complete description and figures.] 
DESCRIPTION: Carapace longer than great- 
est breadth, slightly narrower anteriorly than 
posteriorly, with distinct gastric and cervical 
grooves, with five longitudinal carinae, an- 
terolateral angles rounded and usually armed 
with short acute spines, posterolateral angles 
broadly rounded. Rostrum longer than broad, 
truncate or triangular. Ophthalmic somite par- i 
daily exposed, anterior margin straight be- j 
tween base of eyestalks, with small rounded 
process at base of each eye dorsally. Eyes I 
large; cornea set transversely on stalks, only 
slightly broader than greatest breadth of stalk, 
about 0.3 total length of carapace, including 
rostrum. Antennular peduncle about same jl 
length as carapace, including rostrum. Ischio- 1| 
meral articulation of raptorial claw terminal; j' 
ventral surface of merus grooved longitudin- |j 
ally throughout its length for reception of 
propodus; carpus with a blunt median carina; || 
outer margin of propodus finely pectinate, jj 
three movable spines near proximal end (only ' 
one shown in Fig. ih, other two not visible 
in this view); dactylus not inflated at base, | 
notched inferiorly, outer margin straight or 
slightly concave, inner margin armed with 
six teeth. Anterior and posterior margins of j 
third and fourth thoracic appendages round- 
ed, first and fifth straight and nearly parallel 
(Fig. la, c-e). No mandibular palp. Fifth 
through eighth thoracic somites exposed; lat- 
eral margin of fifth seen in dorsal view com- 
posed of two distinct processes, a long, an- 
teriorly directed spine and a rounded posterior 
lobe; sixth, seventh, and eighth not bilobed, j 
but rounded. Longitudinal carinae on all ex- ; 
posed somites, eight on first five abdominal^ || 
somites, none ending in spines; posterolateral J 
margins acute and rounded; sixth abdominal || 
somite with six carinae ending in spines, two j 
submedian, two intermediate, two lateral. Tel- ‘ jj 
son with indistinct median carina but a small j 
median spine posteriorly; radiating series of 
pits on dorsal surface; armed with six mar- [ 
ginal teeth, two submedian with movable tips, ] 
two intermediate, two lateral; five or six min- f 
ute submedian spinules, 11 or 12 intermediate, | 
