Alpheids from Onotoa — BANNER 
167 
excellent figures make it certain that the South 
African form does not differ in any significant 
fashion from the Pacific form. 
Alpheus machrochirus Richters, 1880 
For synonymy see Banner, 1957. 
locality: 1 specimen at GOC-36. 
Obesomanus Group 
Alpheus lutini Coutiere, 1905 
For synonymy see Banner, 1956. 
localities: 1 specimen each at B-4, GOC- 
28, GOC-53, GOC-55. 
Alpheus species 
locality: 2 specimens from GOC-51. 
discussion: These two specimens, both 
females, appear to be in either the Obesomanus 
group or the Crinitus group, and may be re- 
lated to the complex containing the species 
A. obesomanus Dana, A. microstylus (Bate), and 
A. lutini Coutiere. These specimens appear to 
be of a separate species, possibly new, but 
preliminary work on the variation in this com- 
plex indicates that the specific characteristics 
need re-evaluation. Therefore it has been con- 
sidered wiser to defer judgement on these 
specimens until a later paper when the related 
species are considered. 
Crinitus Group 
Alpheus brevipes Stimpson 
Alpheus brevipes Stimpson, Acad. Nat. Sci. 
Phila., Proc. 12: 30, I860. 
Crangon brevipes Banner, Pacific Sci. 7(1): 103, 
figs. 35, 36, 37, 1953 [neotype described]. 
locality: 2 specimens at GOC-51. 
Alpheus bucephalus Coutiere 
For synonymy see Banner, 1956. 
locality: 3 specimens at A-7. 
discussion: These specimens exhibited a 
variation similar to those forms reported upon 
from Saipan. 
Alpheus clypeatus Coutiere 
Alpheus clypeatus Coutiere, Fauna and Geog. 
Maidive and Laccadive Archipelagoes 2: 
897-898, pis. 81, 82, figs. 36, 36g, 1905. 
Crangon clypeata Banner, Pacific Sci. 7(1) : 107, 
figs. 37, 38, 39, 1953. 
locality: 1 specimen at GOC-51. 
Alpheus pachychirus Stimpson, I860 
For synonymy see Banner, 1956. 
locality: 1 specimen at GOC-51. 
Diadema Group 
Alpheus diadema Dana, 1852 
For synonymy see Banner, 1956. 
locality: 1 specimen at GOC-36. 
Alpheus lanceloti Coutiere 
Alpheus lanceloti Coutiere, Fauna and Geog. 
Maidive and Laccadive Archipelagoes 2: 
900, pi. 83, fig. 39, 1905. 
locality: 1 specimen only from A-3. 
discussion: This specimen, fortunately in- 
tact, agrees almost perfectly with the original 
description by Coutiere. The only exception 
may be in the merus of the large cheliped, 
which Coutiere shows as bearing four im- 
movable denticles proximal to the terminal 
denticle, and which bears four short but heavy 
movable spines in this specimen. It should 
also be noted that the merus of the third leg 
on one side is like that of the type bearing 
three movable spines, while on the other side 
there are four such spines. 
Alpheus gracilipes Stimpson, I860 
For synonymy see Banner, 1956. 
locality: 2 specimens from GOC-22. 
