106 LEODICID.E OF THE WEST INDIAN REGION. 



figure 391). These are simple, stout, with long shafts, each terminating in a narrow 

 "neck" and toothed "head." The distal surface of the largest tooth has a peculiar 

 roughness which looks like a broken edge. Distal to this are other teeth, successively 

 smaller toward the apex, the whole covered by a hood. 



The aciculse (text-figure 392) are slender, light brown in color, with a blunt apex. 



The maxilla (text-figure 393) is dark brown with lighter margins. The carrier is 

 long and slender, the forceps broad and much curved. As drawn, it is slightly turned, 

 so that the broad surface is shown. The proximal toothed plates have each five teeth, 

 of which the terminal one at the distal end is the smallest. These plates are curved 

 at the apex, so that the terminal tooth is nearly on the same level as the forceps. The 

 fourth tooth on the right-hand side had been broken in the specimen figured. The distal 

 paired plates have 2 teeth and 1 tooth, respectively. Except for the single tooth on each 

 of the distalmost plates, the apices of the teeth are covered with a colorless incrustation. 

 Laterally all of the plates merge into a more or less colored plate of chitin, so that in the 

 figures their lateral margins are rather arbitrarily drawn. The most noticeable of these 

 colored areas are situated laterally to the forceps. The two halves of the mandible 

 (text-figure 394) are fused for practically their entire extent, this portion being marked 

 laterally by longitudinal brown lines and through the middle by concentric angular 

 ones. These are really on the opposite surface of the mandible, where they show much 

 more clearly than in the view drawn. The beveled portion is marked with concentric 

 brown lines which are heaviest at their ends. There is an anterior prolongation covered 

 with a whitish incrustation which is prolonged to a certain extent backward to cover the 

 beveled part, more or less obscuring the lines. 



Collected in April 1915, in sand, in Buccoo Bay, Tobago, where it was fairly common. 



Type in the American Museum of Natural History. 



