's RIJKS MUSEUM VAN NATUURLIJKE HISTORIE — LEIDEN. 247 



dium, the anterior lip of which is rounded, ellipsoidal, with an incision in 

 the outer margin, whereas the smaller, posterior one is provided with 

 several papillae. The neuropodial fascicle contains four yellow, hook-shaped 

 setae, which are dilated beneath the curved apex and provided here with 

 several indistinct, densely crowded, denticulated rows (Fig. 2). Presumably 

 there are 18 pairs of scales, situated on segments 2, 4, 5, 7, 9, 11, 13, 

 15, 17, 19, 21, 23, 24, 26, 27, 29, 30 and 32; the arrangement of the 

 elytra therefore differs from that in other Lepidonotidae, in most of which 

 the elytrophore-bearing segments behind the 23 î alternate with two cirri- 

 phore-bearing ones. Each cirriphore, lying outwards from the series of 

 elytrophores, is connected by a ridge with a dorsal tubercle. 



Leiden, November 1915. 



