BARBADOS-ANTIGUA REPORTS 73 
angle of the antennal scale, is not at all noticeably produced; 
the groove which runs the length of the outer face of the im- 
movable finger of the larger hand of C. malleator is longer than 
in C. nigrospinatus in that it extends back on to the palm for 
a distance about equal to its length in front of that point; 
moreover the upper margin and a considerable portion of the 
inner faces of both chelae are distinctly tubercular in C. mal- 
leator, and the same areas merely punctate in C. nigrospinatus, 
though hairy in both species; the dactyls of the ambulatory legs 
are biunguiculate in both species though the fact is not men- 
tioned by Rankin, nor discernible in his figure of C. nigro- 
spinatus. 
Crangon formosus (Gibbes) 
Alpheus formosus Gibbes, Proc. Amer. Assoc. Adv. Sci., IIIT (1850), p. 
196 [32]; Rathbun, Bull. U. 8. Fish Comm., XX, pt. 2, 1900 (1901), 
p. 106. 
Alpheus panamensis Zimmer, Zool. Jahrb., Suppl. 11, hft. 3, (1913), p. 
391, text figs. N-V. 
Alpheus formosus or Crangon formosus Verrill, Trans. Conn. Acad. Sci., 
XXVI (1922), p. 84, text fig. 5d, ? text fig. 6a; pl. 19, figs. 1, 2; 
pl. 20, fig. 3; pl. 23, fig. 5, a, b; pl. 20, fig. 4, a-u; pl. 25, figs. 6, 6a. 
Pelican Island, tide pool, May 11; 12 ovig. Barbados, from > 
coral heads; one specimen. English Harbor, 7; 1 @ ovig. 
English Harbor; one specimen. 
The second and fourth specimens are without chelae, and 
though the rostra look somewhat like C. panamensis (Kingsley) 
as figured by Coutiére,* the second legs by comparison are like 
the unmistakably formosus forms. What the relations of the 
carpal joints of the second legs of C. panamensis’ are, I do not 
know. 
Crangon cristulifrons (Rathbun) 
Alpheus obeso-manus Pocock, Jour. Linn. Soe. London, Zool., XX (1890), 
p. 520, (nec Dana). 
Alpeus cristulifrons Rathbun, Proc. Wash. Acad. Sci., II (1900), p. 152; 
Bull. U. S. Fish. Comm., XX, pt. 2, 1900 (1901), p. 106. 
Okra Reef, Barbados, 16, May 13; three specimens. Bar- 
bados, May 15; 6 (3 ovig.). Barbados, May 22; one specimen. 
6 Ann. Sci. Nat., Zool. Paris, (8), IX (1899), p. 89, text fig. 50. 
7 Kingsley, Bull. U. S. Geol. Survey, IV, art. 8 (1878), p. 192. 
