Hawaiian Crangonidae — BANNER 
49 
dactylus of large chela with small 
lobes on inner distal face but not 
bulbous at tip 5 
Crest leading to palmar adhesive 
plaque on large chela rounded; 
dactylus of large chela with tip 
bulbous 6 
5 (4) . Second carpal article of second leg 
0.5 the length of the first 
C. hailstonei Ydit. paucispinata (p. 51) 
Second carpal article of second leg 
almost 1.5 times the length of 
the first. . . . C. hrachymerus (p. 58) 
6(4). Dactylus of third leg with one or 
more superior serrations but with 
no trace of an inferior unguis . . 7 
Dactylus of third leg with no supe- 
rior serrations but with a strong 
inferior unguis . C. oahuensts (p. 64) 
7 (6) . Crest leading to the superior tooth 
at the dactylar articulation of the 
large chela interrupted by a trans- 
verse notch . . C. albatrossae (p. 60) 
Crest leading to the superior tooth 
at the dactylar articulation of 
the large chela continuous from 
the superior margin of the 
palm C. tuthilli (p. 63) 
8(3). Tips of the orbital teeth reaching 
about half the length of ros- 
trum. Dactylus of third leg bi- 
unguiculate; inner face of large 
chela with a moderate growth of 
setae; lateral spine of basicerite 
longer than stylocerite 
C. collumiana (p. 67) 
Tips of the orbital teeth reaching 
at least near the end of ros- 
trum, or beyond 9 
9(8). Tips of orbital teeth not reaching 
to tip of rostrum. Large and small 
chelae densely hirsute on inner 
faces; small chela heavy and with 
straight fingers; dactylus of third 
leg simple. . . . C. deuteropus (p. 70) 
Tips of orbital teeth extending be- 
yond rostrum. Inner faces of 
large and small chelae almost 
glabrous; small chela slender 
with fingers bent at right angles 
and crossing; dactylus of third 
leg biunguiculate 
C. paradentipes (p. 72) 
10(2). Dactylus of third leg simple, 
curved, conical, with acute tip . .11 
Dactylus of third leg with tip either 
obtuse or strongly hooked. ... 12 
11(10). Large chela about 2.5 times as long 
as high, with depressions on su- 
perior and inferior margins, Me- 
rus of third leg 3-4 times as long 
as broad; external spine of uro- 
pod usually black 
C. gracilis var. simplex (p. 75) 
Large chela 3. 0-3. 5 times as long 
as high, without depressions on 
margins. Merus of third leg 6-7 
times as long as broad; external 
spine of uropod never black . . . 
C. edmondsoni (p. 78) 
12(10). Dactylus of third leg with abrupt 
taper and abrupt hook in distal 
0.3; tip acute. Second article of 
carpus of second leg broader 
than long; mature specimens 8.5 
mm. long C. latipes (p. 82) 
Dactylus of third leg almost 
straight and very blunt. Second 
article of carpus of second leg 
about twice as long as broad; 
mature specimens up to 42 mm. 
long C ventrosa (p. 84) 
13(1). Large chela with only 1 or 2 simple 
longitudinal grooves on outer 
face extending proximally from 
articulation of dactylus 14 
Large chela with or without 
grooves, but never with only 1 
or 2 longitudinal grooves 17 
14(13). Second article of carpus of second 
leg over twice length of first. 
Large chela subcylindrical 
C. amirantei (p. 87) 
Second article of carpus of second 
