Alpheid Shrimp, IX — Banner and Banner 
larger population; presumably the shrimp were 
deeper in the coral mass, impossible to collect 
with the equipment available. 
BC 19. Dead coral heads in the — 1-ft tidal 
level, few shrimp. 
BC 20. Various corals, mostly dead massive 
heads; 6-20 ft deep. 
Stations 21 and 22 were located on the broad 
intertidal beach of fine sand at the most south- 
westerly portion of the lagoon. Most of the 
beach was devoid of traces of alpheids (unless 
they were deep sand-burrowing species as those 
of the Brevirostris group). The specimens col- 
lected were found associated with scattered coral 
heads and boulders, living and dead, especially 
under coral and beachrock boulders resting in 
slight pools on the sand flat. 
BC 21. Under scattered boulders, resting on 
sand; depths ranging from 0 to + l-ft tide level. 
BC 22. Coral heads, mostly dead, from outer 
beach edge; at 0-ft tidal level or slightly below. 
Stations 23-25 were from near the ocean 
side of the lagoon pass and within the pass. 
The ocean reef here was solid and flat, with few 
loose heads or boulders that could provide holes 
for alpheids; the pass proper was the result of 
blasting during World War II and had much 
dead coral. 
BC 23. Specimens collected under flat coral- 
line rocks in a shallow tide pool, where they 
were buried in tunnels and excavations in a 
thin sand layer; depth about + 0.5-ft tide level. 
BC 24. Attached, overgrown head of dead 
coral; depth about —1-ft tide level. 
BC 25. Overgrown head of Porites, mostly 
dead, seaward portion of lagoon pass; about 6 
ft deep. 
Another small group of specimens came from 
Christmas Island, an atoll in the Line Islands 
lying at 1° 55' N and 157° 20' W. It has a 
land area of 234 sq miles. Areas plainly identi- 
fiable as being part of an extensive lagoon are 
now filled in, bridged across, and cut off, so the 
area within the outer ring of the island is a 
series of lagoons separated from the sea by land. 
Most of the isolated lagoons have high salinity 
and are apparently devoid of higher plant or 
animal life. As the main lagoon is approached 
from the filled portion of the old lagoon bed 
there are a series of sublagoons, separated from 
the main lagoon by broad shallow sills; the inner 
85 
of these, too, are lacking snapping shrimp at 
least. The main lagoon and the reefs around the 
island are usual for tropical atolls and have the 
usual fauna. Some of the collections reported 
from this island were made in 1959 by the 
senior author, incidental to procuring poisonous 
fish, and some were made by members of the 
British Royal Air Force stationed on the island. 
Most of the collection is lacking in environ- 
mental data, but where possible notes on the 
environment are given under the species con- 
cerned. 
Palmyra Island, like Christmas Island, lies in 
the Line Islands at 5° 52' N and 162° 06' W. 
The few specimens from this island were col- 
lected by the senior author in 1959 while study- 
ing poisonous fish there. 
Johnston Island, lying at 16° 45' N and 169° 
30' W, is represented in the collections by a 
few specimens loaned by the Bernice P. Bishop 
Museum and the U. S. National Museum. 
J-l to J-8 were collected in 1947 on the outer 
reef edge on the northwest side of the 
island by F. Bayer. 
J-l 6. Outer reef at end of north seaplane 
channel. Collected in 1947 by F. Bayer. 
24-9 Bishop Museum. Collected on Tanager 
Expedition in 1923. No further data. 
1799 Bishop Museum. Same data as above. 
10980 Johnston Island. Collected by Maxwell 
Doty. No further data. 
AUTOMATE de Man 
Automate gar diner i Coutiere 
Automate gardineri Coutiere, 1902. Mus. 
d’Hist. Nat., Bull. 8(5): 337; 1905. Fauna 
and Geog. Maid, and Laccad. 2(4): 854, 
figs. 127-128. 
LOCALITY: 2 specimens from BC 21. 
ATHANAS Leach 
Athanas indicus (Coutiere) 
For synonymy, see Banner and Banner, I960. 
locality: 3 specimens from BC 11. 
DISCUSSION: In the field notes on the collec- 
tion from BC 11 it was remarked that "the 
small black alpheid of the lower genus probably 
Arete ” was found in apparent commensal as- 
