138 Addison E. Verrill, 



upper side and the tip less acute. In our Bermuda specimens 

 (pi. 46, fig. 2, a; pi. 47, figs. 4, 4a) the rostrum is somewhat 

 elongated with an acute tip, and with only three sharp teeth on the 

 upper side, except the one at the bifid tip, usually present. That 

 of a half grown specimen is more slender and the very acute tip is 

 not at all bifid, there being only three teeth. 



Family PROCESSION. 



Lysmatidcc of many authors. 



The mandibles have no palpus and no incisor lobe. Rostrum 

 is usually small and horizontal. One or both of the legs of the 

 first pair of legs chelate. Legs of second pair slender; carpus is 

 much subdivided ; their, chelae are small and simple. 



Processa Leach, 1815. 

 Nika Risso, Hist. Nat. Crust, p. 85, 1816. 



One of the legs of the first pair is chelate, the other usually 

 simple, but sometimes chelate; legs of the second pair slender, 

 unequal; merus channelled. Rostrum small, dentate. 



Processa canaliculata Leach, var. bermudensis (Rankin). Changeable 

 Shrimp. 



Processa canaliculata Leach, Mai. Podoph. Brit., pi. xli and text, July I, 

 1815. Rathbun, M. J., Brachyura and Macrura of Porto Rico; Decapod 

 Crust. N. W. coast N. A. Harriman Exped., p. no, 1904, p. 104, 1901 

 (descr.). Stebbing, Crust. S. Africa, Part iii, p. 91 (synonomy, etc.). 

 Schmitt, Dec. Crust. Calif., p. 81, pi. 12, fig. 6, 1921. 



Nika edulis Risso, Hist. Nat. Crust, Nice, p. 85, pi. iii, fig. 3, 1816. 

 Bell, Brit. Stalk-eyed Crust, p. 275 and fig., 1863. Bate, op. cit, p. 

 527, pi. xcv, 1885. Heller, Crust. S. Europe, p. 332, pi. 7, figs. 17-19, 

 1863. Jourdain, Comptes Rendus, Ixxxvii, p. 302, 1838 (changes in 

 color). Faxon, op. cit., p. 252 (color changes). 



Nika bcnmtdcnsis Rankin, Ann. N. Y. Acad. Sci., xii, p. 536, pi. xvii, fig. 

 2, 1900. 



PLATE XVI, FIGURES 6-6b. PLATE XXXV, FIGURES i-ig. var. PLATE XLI, 

 FIGURE 4, photo. PLATE XLVII, FIGURES 8, 8a, 8b (after Bate). 



The rostrum is not dentate, small and short, slender, nearly 

 straight, shorter than the eyes, obscurely bifid at the tip, which 

 bears a few slender hairs (pi. 35, fig. I, r). The antennal flagel- 

 lum is about as long as the body. The telson has six unequal 



