168 
PACIFIC SCIENCE, Vol. XII, April, 1958 
Alpheus paracrinitus (Miers) 
bengalensis Coutiere, 1905 
For synonymy see Banner, 1956. 
locality: 1 specimen from A- 10-1 2. 
Edwardsii Group 
Alpheus crassimanus (Heller), 1865 
For synonymy see Banner, 1957. 
locality: 1 specimen from A-l. 
discussion: This single specimen is a fe- 
male and the identification therefore lacks the 
confirmation obtainable only by the examina- 
tion of the small chela of the male; however, 
on all characteristics it is similar to specimens 
of the same size from Hawaii (see Banner, 
1953: 134). 
Alpheus strenuus Dana, 1852 
For synonymy see Banner, 1957. 
locality: 2 specimens from A- 3. 
discussion: Special efforts were made to 
collect large specimens, presumably of this 
species, from the windward reef flat where 
they were abundant. However, it was found 
impossible, for they lived in burrows in con- 
solidated coral where a geologist’s pick would 
scarcely penetrate. 
The Gilbertese on the island informed me 
that they used this shrimp — and some other 
species of small chelate shrimp-like crusta- 
ceans that I was unable to collect— as food. 
The shrimp were caught in the back-ridge 
trough of the windward reef with nets at 
night when torch fishing. The collective name 
for this group of decapods is "Teniwarowaro,” 
and my informant stated that their size ranged 
to 14 inches long (235 cm.). The Gilbertese 
ate the cephalothorax and abdomen of the 
shrimp. 
Alpheus pacificus Dana, 1852 
For synonymy see Banner, 1956. 
localities: 1 specimen at A-2, 40 at A-3, 
3 at A-6, 1 at A-7. 
discussion: Some of the specimens placed 
in this species are lacking their small chela, 
so that they can not be positively identified. 
However, they agree on other characteristics 
with the complete specimens. 
In this group of specimens slight sexual 
dimorphism is found in the proportions of 
the small chela, with the fingers of the male 
being relatively longer (up to twice as long 
as the palm) than in the female where they 
are about 1.5 times as long as the palm. 
However, the characteristic is not constant, 
especially for those of smaller size where the 
finger length is quite variable between these 
limits. 
Alpheus dolerus Banner, 1956 
For synonymy see Banner, 1956. 
locality: 2 specimens at GOC-51. 
discussion: The finger of the small chela 
of the male bears a fringe of setae that reaches 
about half the length of the dactylus on the 
inner face and a shorter distance on the outer 
face; this fringe is similar to the fringe of the 
"balaeniceps-type” chela except that it is con- 
tinuous over the superior surface of the finger 
and the finger is not expanded. Otherwise the 
two specimens are like those of Saipan. 
Alpheus parvirostris Dana, 1852 
For synonymy see Banner, 1956. 
localities: 1 specimen at GOC-22, 3 at 
GOC-28. 
REFERENCES 
Banner, Albert H., and John E. Randall. 
1952. Preliminary report on marine biology 
study of Onotoa, Gilbert Islands. Atoll Res . 
Bui. 13: 1-62, 1 map. 
Banner, Albert H. 1953. The Crangonidae 
or snapping shrimp of Hawaii. Pacific Sci. 
7(1): 1-147, figs. 1-50. 
