82 
PACIFIC SCIENCE, VoL VII, January, 1953 
kuli at 15-20 feet; two other specimens came 
from unspecified localities on Oahu, presum- 
ably from shallow water. One specimen in 
Bernice P. Bishop Museum came from Ma- 
kena, Maui, and one was also collected in 3 
feet of water at Kalama Park on that island. 
R. W. Hiatt collected two specimens at Ha- 
lape, Kau Coast, Hawaii, from coral heads in 
the intertidal zone. 
Crangon latipes sp. nov. 
Fig. 27 a-j 
Alpheus sp. Coutiere, Fauna and Geog. Maid. 
and Laccad. 2: 882, pi. 74, fig. 19, 1905. 
TYPE specimen: a male 8.5 mm. long col- 
lected off Waikiki Reef, Oahu, in 20 feet of 
water (U.S.N.M. 93457). 
DESCRIPTION: Anterior carapace produced 
as well-developed rostrum, tip reaching slight- 
ly beyond end of first antennular article; ros- 
trum about 0.3 longer than width at base. 
Rostral base laterally demarked from orbital 
hoods by shallow depressions; depressions 
deeper and more abrupt posteriorly; rostrum 
and base without definite carina, rounded dor- 
sally. Orbital hoods inflated, anterior margin 
rounded in both dorsal and lateral aspects. 
Orbital teeth small, acute, arising abruptly 
from curvature of orbital hoods; tips reach 
about 0.3 length of rostrum. 
Antennular peduncle in dorsal view with 
second article about 0.2 longer than visible 
portion of first article and 0.3 longer than 
third; second article 1.3 times as long as broad. 
Acute tip of stylocerite reaching to middle of 
second antennular article. 
Lateral spine of basicerite reaching nearly 
to end of first antennular article. Scaphocerite 
with lateral spine strong, lateral margin al- 
most straight, squamous portion well devel- 
oped; tip reaches well beyond end of anten- 
nular peduncle. Carpocerite reaching almost 
to end of scaphocerite. 
Large chela smooth in contour, strongly 
compressed. Chela 1.8 mm. high, 0.8 mm. 
thick, 4.0 mm. long to end of dactylus; dac- 
tylus occupying distal 1.1 mm. Only indenta- 
tions 2 very shallow grooves reaching proxi- 
mally from articulation of dactylus; grooves 
very faint, visible only by rotating cheliped. 
Merus 1.3 mm. long, about twice as long as 
breadth of inner face; inferior internal margin 
with 2 movable spines, terminating distally 
as small, acute tooth; termination of superior 
margin rounded. 
Small chela 1.0 mm. broad, 2.0 mm. long; 
fingers 0.5 length of chela, hooked distally. 
Merus similar in size and proportions to that 
of large chela but with 3 short spines on dis- 
tal portion of inferior internal margin. 
Second legs with ischium 0.7 mm. long; 
merus 0.9 mm. long, 0.24 mm. broad; articles 
of carpus with total length of 1.0 mm., with 
ratio 10 : 8 : 3 : 3 : 14; second secondary ar- 
ticle as long as broad; chela 0.6 mm. long, 
fingers 0.5 of length. 
Ischium of third legs 0.4 mm. long, with 
movable spine; merus 1.36 mm. long, 0.44 
mm. broad, inermous; carpus 0.6 mm. long; 
propodus 1.1 mm. long, with 5 movable 
spines; dactylus 0.35 mm. long, 0.13 mm. 
broad in basal half, abruptly tapering to sharp- 
ly curved acute tip. 
Fourth legs similar in structure. Fifth legs 
generally similar but more slender, propodus 
with only several distal spines and without 
well-defined "brush.” 
Telson 1.4 mm. long, 0.75 mm. broad at 
base, and 0.36 mm. broad at tip, sides with 
uniform taper. Outer distal spines 0.07 mm. 
long, inner spines 0.18 mm. long; anterodor- 
sal spines about 0.5 distance from tip, pos- 
terior spines 0.32 mm. from tip. 
Three additional specimens: male 6.5 mm. 
long; 2 females 8.8 and 8.0 mm. long. Color 
of specimens in life not noted. 
DISCUSSION: Two of the paratypes agree 
quite well with the type specimen. The female 
from Nanakuli differs chiefly in that the ros- 
trum is asymmetrically bifurcate at the tip 
and one of the orbital teeth points toward the 
rostrum. This, obviously, is the result of an 
accident or of anomalous growth. The female 
from Lahaina also agrees with the type quite 
