8o Addison E. Vcrrill, 



The development of this Beaufort species is very fully described 

 and illustrated (pp. 365, pi. 19, 20, etc.) by them. 



Its large chela is marked with brown, green, and blue ; tip of 

 dactyl is yellow ; uropods green, tipped with red and blue ; body 

 green with whitish longitudinal marks on the sides and behind the 

 eyes ; smaller legs banded with red. 



The form from the Bahamas, pp. 377, 378, that they referred to 

 the same species, though it has large eggs which hatch advanced 

 larvae and has also very different colors, is probably a distinct 

 species, possibly armillatus or bahaincnsis. Probably the Key 

 West species, of which Prof. Packard observed the larvae, was 

 also a distinct species. 



Alpheus packardii (Kingsley) or Crangon packardii. Green Snapping 

 Shrimp. 



Alpheus packardii Kingsley, Proc. Acad. Nat. Sci. Philad., xxxi, p. 417, 

 for 1879, 1880 (Key West) ; Bull. Essex Inst. Salem, xiv, p. 118 (14) 

 pi. ii, fig. 2, 1883. 



Alpheus bermudensis Bate, Voyage Challenger, Rept. Zool., xxiv, p. 547, 

 pi. xcviii, fig. 3, 1888. 



Alpheus minus and minor Brooks and Herrick (pars), Mem. Nat. Acad. 

 Sci., v, 372, pi. i (colored), pi. xvi, xvii (larvae), 1891 (not of Say). 



Alpheus packardii Rathbun, M. J., Brachyura and Macrura of Porto 



Rico, p. 107, 1901 (descr.). 

 Crangon packardii Hay and Shore, op. cit, p. 385, pi. 26, fig. 4, 1918. 



PLATE XX, FIGURES 2, 5 (photos). PLATE XXI, FIGURE 5 (chela). PLATE 

 XXII, FIGURE 7 (chela). PLATE XXIII, FIGURES 6c-d (photo of 

 chelae). PLATE XXV, FIGURES 4, a, b (general). PLATE XXXI, 

 FIGURES I, b-1, 2, b-u (details) ; 3, u, t. By A. H. V. 



This is a rather large, stout species, easily recognized by its larger 

 chela, which is elongated, with a very distinct oblique dorsal notch 

 near the distal end of the palm and none on the under side, which 

 is, however, somewhat constricted near the distal end ; a groove 

 runs back from the notch on each side. The dactyl is long and 

 broad, bluntly rounded at the tip; the fixed claw is broad with a 

 large hairy lobe on the inner edge. The smaller chela is nearly 

 plain and very hairy. The rostrum is small, short, spiniform; 

 ocular lobes without spines. The telson is rather long and narrow, 

 little tapered, rounded at the tip. 



In life this species is usually dull green, often clouded or mottled 



