ioo .\ddison E. }' err ill, 



palm; length to that of palm about I : 1.7; faxed finger has two 

 minute unequal teeth at the tip, and about five small clusters of 

 hairs oil the outer margin and on each side near the tip ; fixed 

 finger has four or five similar clusters on the lower edge, with two 

 or three on each side ; carpus and merus also have small groups of 

 hairs; carpus is wider than long, about I : 1.3, nearly as wide as 

 palm ; merus about same thickness, largest in middle ; length to 

 that of carpus as 2.5 to I ; distal end has a spiniform tooth at 

 outer angle and a prominent angle at inner one. 



Legs of second pair are slender ; chela small, with nearly 

 parallel sides ; palm about equal to dactyl, which is slender with 

 a bidentate tip ; it has a small tuft of divergent hairs at about the 

 proximal third, and another at the tip ; other finger is stouter with 

 two tufts of hairs below and one near tip ; first article of carpus 

 is about equal to sum of 3, 4, 5, and about equal to chela ; merus 

 is about equal to sum of first four carpal articles. 



Leg of third pair has on the propodus about six spines, besides 

 two distal ones ; dactyl is strong, tapered, inner hook shorter and 

 stouter, divergent ; proximal to it there is a slight obtuse elevation 

 or hump. The carpus has a small distal movable spine on its 

 inner angle and a prominent outer angle ; merus is much stouter, 

 width to length about I 13, widest jui middle, length about equal 

 to propodus. Legs of fifth pair are much smaller and more 

 slender. 



Telson is somewhat elongated, tapered, distal end about one- 

 third as wide as widest part; tip obtusely rounded, with about 14 

 plumose hairs, of which the outer lateral ones on each side are 

 much smaller and shorter than others ; between the plumose hairs 

 are about as many very much more slender smooth hairs ; the four 

 dorsal spines are slender and acute; the two at the angles are 

 very slender ; inner one is about three times as long as the outer 

 one. 



Fort Macon (Dr. H. C. Yarrow coll.) No. 1831. 



Synalpheus townsendi Coutiere. Small Snapping Shrimp. 



Synalpheus townsendi Coutiere, Proc. U. S. Nat. Mus., vol. xxxvi, p. 32, 

 figs. 14-17, 1909. Hay and Shore, op. cit., 1918, p. 384, pi. 26, fig. I ; 

 text-cut 7. 



Alpheus minus? Say, op. cit., p. 245, 1818. S. I. Smith, Ann. Rep. U. S. 

 Comm. Fish and Fisheries, for 1885 (p. 54), 1886 (non Coutiere sp.). 



