610 PROCEEDINGS OF THE NATIONAL MUSEUM Von. 113 
some Variation in the proportions of the antennules and antennae in 
Hawaiian material, and the examination of seven Hawaiian specimens 
identified by Banner as Crangon paracrinita bengalensis has disclosed 
one specimen in which the antennal scale is nearly as long as it is 
in the one from Ghana. It is probable, therefore, that only one 
species is represented by the material examined from the eastern 
Atlantic and the eastern Pacific, and it is doubtful that Coutiére’s 
subspecies will be tenable when more abundant material is available 
for comparison. 
DistriputTion: West Africa and the Indian and Pacific Oceans 
from the Red Sea to Clipperton Island. 
? Alpheus bouvieri A. Milne-Edwards 
Alpheus bouviert A. Milne-Edwards, 1878, p. 231.—Coutiére, 1905, p. 907, pl. 85, 
fig. 44.—Holthuis, 195la, p. 81, fig. 16. 
MatTERIAL: September 10-15, 1958; C. R. Harbison; 1 male, 1 
female. 
MEASUREMENTS: Carapace length of male to base of rostrum, 6.3 
mm.; of female, 5.9 mm. 
Remarks: The male specimen of this pair has lost the minor 
cheliped. It is therefore impossible to be certain of the identification. 
The specimens agree in other respects, however, with Coutiére’s 
figures of one of the syntypes of A. bouvert from the Cape Verde 
Islands and differ from Holthuis’s figures of a specimen from the 
same area 1n the less prominent rostrum, stouter antennular peduncles, 
broader major chela, and stouter and differently proportioned carpal 
segments of the second pereiopods. It seems very doubtful that the 
specimens figured by these two authors belong to the same species. 
Only re-examination of the type lot will determine which is the true 
A. bouviert. 
DistTriBuTion: A. bowviert has been recorded from the West African 
coast and the offlying island groups, Fernando Noronha off north- 
eastern Brazil, Panama, Djibouti in the Gulf of Aden, and the 
Maldive Islands. A pantropical distribution is indicated, but the 
identity of the Atlantic and Pacific specimens will remain uncertain 
until the type series is re-examined. 
Alpheus pacificus Dana 
Alpheus pacificus Dana, 1852, p. 544; 1855, pl. 34, fig. 5. 
Crangon pacifica Banner, 1853, p. 138, fig. 50. 
Mareriau: Northeast shore, rocks south of landing place; July 21, 
1938; Sta. 9; W. L. Schmitt; 2 males, 3 females.—Poison; October 
20, 1956; W. Baldwin; 31 males, 20 females (13 ovigerous), 5 juve- 
niles.—East side, coral reef; August 9, 1958; Sta. W58—283; Reese, 
Baldwin, and Wintersteen; 15 males, 20 females (12 ovigerous), 
