514 APPENDIX. 



and the four anterior segments of the pereion. Flagellum 

 about the same length as the peduncle. Secondary appendage 

 small. The inferior antennae are a little longer than the supe- 

 rior, the peduncle being about three-fourths of the antennae. 

 The first pair of gnathopoda are cylindrical, having the poste- 

 rior margin of the carpus and propodos thickly ciliated ; 

 carpus as long as the propodos, tapering ; dactylos apical, 

 straight. The second pair of gnathopoda are long ; propodos 

 ovate; palm oblique, defined by a strong tooth, armed near the 

 base of the dactylos with a double dentated tubercle, and 

 near the middle with three teeth, of which the anterior is the 

 largest ; dactylos short, shorter than the palm, curved and 

 simple. The three posterior pairs of pereiopoda have the 

 basos narrow and the entire appendage increasing posteriorly 

 in length ; the posterior pair of pleopoda having the ramus 

 nearly three times as long as the peduncle. The telson is 

 tipped with strong cilia. 



This species was first talien and described by the Rev. 

 A. M. Norman, from a single specimen dredged in deep water 

 off Holy Island. We have since received it, through Mr. 

 Dawson, from the coast of Aberdeenshire. 



