16 c. BOVALLIUS, NOTES ON PTERYGOCERA AUENARIA, SLABBER. 



process, armed with two strong, tooth-like spines. The po- 

 sterior margin of the lamina is moderately arcuated, devoid 

 of hairs or bristles. From the base there issues a feather- 

 shaped ciliated bristle, more closely ciliated on the inner side 

 than externally, equalling in length the whole maxipilled 

 (Pl. I, fig, 7, Pl. lY, fig. 78). The third joint is a little lon- 

 ger than the second, inwards expanded into a lamina, which 

 is considerably larger than that of the preceding one (Pl. I, 

 fig. 7); its inner margin is slightly curved and provided with 

 short, smooth bristles placed in 11 to 12 träns verse ranges 

 and (near the foremost end) with a number of curved roun- 

 ded spines (Pl. III, fig. 22 and 23), increasing in size against 

 the top of the lamina. 



The hinder margin is strongly curved without appendix. 

 The fourth joint ^) is a little less than the preceding one, 

 devoid of any laminiform appendix; it has at the upper mar- 

 gin some straight, smooth bristles of moderate length. The 

 fifth joint is a little shorter than the two preceding ones taken 

 together; it dilates to about the same size as the lamina of 

 the third joint, not so thin but a little swollen, its inner 

 side carries long hairs bent at the top and minutely cilia- 

 ted towards the base (Pl. III, fig. 36), disposed in 20 — 24 

 rows, running transversely on the inner side of the lamina. 

 Moreover the joint carries straight, smooth bristles, disper- 

 sed here and there; such a bundle occupies its upper outer 

 angle. The sixth joint is about half as long as the prece- 

 ding; it is also laminiform, but of a quite different form, 

 prolonged into a beak, so that the breadth of the lamina 

 becomes greater than the length of the whole joint. The 

 outer side of the joint carries scattered, fine, thinly ciliated 

 hairs (Pl. IV, fig. 56). The front margin of the lamina is fee- 

 bly curved, it carries fine hairs together with the long, above 

 named finely serrated bristles (Pl. III, fig. 36); its inwards di- 

 rected point is bluntly rounded; this is close beset with 

 bristles of the same form as the last named ones, together 

 with smooth, shorter bristles and minute, straight, flat, coar- 

 sely serrated bristles of a singular shape (Pl. IV, fig. 80); the 

 jagged edge is directed outward. The lower margin of tbe 

 lamina is feebly concave and smooth. 



') This and the foUowing joints A. Boeck comprehends under the name 

 of »The palpe of the maxilliped», a denominatiou which I have re- 

 tained for shortness" sake in the diagnosis (See above). 



