BARBADOS-ANTIGUA REPORTS 71 
than any other species; C. belli has comparatively stout antennular ped- 
uncles, the longest, the middle joint being less than twice as long as 
wide, but equal to the length of the first, and one-half the third taken 
together; the antennular scale reaches but two-thirds the length of the 
basal joint of the peduncle, in C. belli about to the end; the basal an- 
tennal scale is longer, attaining about the distal margin of the first joint 
of the antennular peduncle; the antennal scale, though much shorter than 
the antennal peduncle is yet considerably longer than the antennular 
peduncle, exceeding it by a little more than the jength of the distal joint, 
the scale is almost all ‘‘spine’’ as the blade is much reduced in size, and 
short; in C. belli the antennal scale about equals the antennal peduncle 
in length; the large hand is notched above and below; the fingers of the 
smaller chela about equal the palm in length, the movable one being more 
or less Baleniceps-shaped in the male; the carpal joints of the second 
legs diminish in the following order, 1, 2, 5, 4, 3; the first equals the 
second and third together, or a little more, the fourth is a little longer 
than the third, the fifth equals the combined length of the third and 
fourth articles or two-thirds of the second; here again C. belli differs 
markedly from our species, as Coutiére says, the first carpal joint of the 
second legs equals two-thirds the length of the first; in our species the 
first is as long as the second and third together; the meri of the third 
and fourth legs are stout, and not spined beneath. 
The telson is quite rectangular with a slightly convex, squarish, trun- 
eate end, and subparallel sides; it is deeply suleate on the median line, 
and the dorsal spines are inserted on prominent longitudinal ridges, either 
side of the median groove; the 4.75 mm. long telson of the type is about 
2.5 mm. wide at its distal extremity and 3 mm. wide proximally. 
The carapace and rostrum of the male holotype from off the Castle, 
E. side of Barbados, measure 14 mm. long; abdomen and telson 20 mm., 
telson 4.75 mm. large hand 18 mm. long, 7 mm. wide; small hand 12.3 
mm. long, 4 mm. wide. 
Crangon nigrospinatus (Rankin) 
Alpheus nigro-spinatus Rankin, Ann. N. Y. Acad. Sci., XI (1898), p. 249, 
pl. 30, fig. 6. 
Alpheus malleator var. edentatus Zimmer, Zool. Jahrb., Suppl. 11, hft. 3, 
1913, p. 387, text figs. G-M. 
Off the Castle, E. side of Barbados, 1-4 fathoms; 14 29. 
Off the Crane, Barbados, from old coral rock; one specimen. 
Barbados, from coral heads, June 4; four specimens. 
Except in a few minor points the specimens before me agree 
well with Rankin’s description. The rostral point is a little 
longer than the orbital spines and not just equal to them in 
length ; on the inner side of either orbital spine there is a slight 
convexity in the frontal margin, the rounded border of the 
orbital hood passing over more abruptly into the inner margin 
