MY8ID K. 



STOMOI'ODA. 



Mysis chameeleon. J. V. Thomps. 



Specific Character. Middle plate of the tail bifurcate ,- rostrum obtuse, not 

 more than one-third the length of the ocular peduncle. 



/I />/'* spimi/osun? LEACH, Trans. Lin. Soc. XI. p. 350. DESMAR. Con- 



sider, sur les Crust. Eow. Hist, des Crust. III. p. 

 457. 



Leadm? J. V. THOMPSON, Zool. Researches, p. 27. 



Chamcekon, Ib. p. '28, t. ii. fig. I 10. EDW. 1. c. p. 457. 



THE general form of this species is much elongated. The 

 carapace slender, terminating in a very short rostrum, in 

 some scarcely projecting, in others forming an obtuse tri- 

 angle, and never extending more than one-third the length 

 of the ocular peduncle. The internal antennse have the 

 peduncle somewhat club-shaped, the first joint being elon- 

 gated, cylindrical, and small, the last two, and particularly 

 the terminal one, much broader, and both very short ; the 

 whole peduncle does not extend much more than one-third 

 the length of the scale of the external antennse : the scale 



