620 



8. Unciola leucopis, (Kroyer). 



(PI. 222). 

 Glanconomc, Icncopis, Kr0yer, Nat. Tidsskr. 2 R. Bd. 1, 1 p. 4fil. 



Bod)- comparatively strongly built, with the segments of mesosome 

 sharply -defined and transversely silicate, those of metasome having on each 

 side a rounded prominence. Cephalon rather broad, and produced in front to 

 an acute rostrum, lateral lobes somewhat projecting between the antennae, 

 and obtusely rounded at the tip. Anterior pairs of coxal plates acutely 

 produced in front; 5th pair with the anterior lobe triangular in form and 

 deeper than the preceding pairs, its inferior edge fringed with ciliated setse. 

 The 2 anterior pairs of epimeral plates of metasome acutely produced at the 

 lateral corners; last pair somewhat less deep than the preceding pair, and 

 having the lateral corners produced to a strong recurved dentiform projection 

 defined above by a deep sinus, posterior edge forming above the sinus a 

 rounded setiferous expansion. Eyes imperfectly developed, and replaced on 

 each side by a small patch of an opaque whitish pigment. Superior antennae 

 nearly equalling in length 2 /s of the body, 2nd joint of the peduncle the 

 longest, 3rd joint exceeding half its length, flagellum somewhat shorter 

 than the peduncle, and composed of about 10 articulations, accessory 

 appendage well developed, though rather narrow, and 5 articulate. Inferior 

 antennae somewhat shorter than the superior, but much more strongly built, 

 especially in the male, antepenultimate joint in that sex very broad and 

 expanded at the end to a rounded lobe, penultimate joint considerably 

 thickened at the base, flagellum nearly half the length of the peduncle, and 

 composed of about 10 articulations. Both pairs of antennas provided pos- 

 teriorly with scattered fascicles of slender bristles. Maxillipeds having the 

 1st segment of the basal part expanded at the end on each side to a lingui- 

 forra, ciliated lobe. Anterior gnathopoda in female rather powerful, with the 

 carpus comparatively short and produced below to a small, setiferous lobe, 

 propodos large and broad, with the palm rather oblique, ami defined below by a 

 distinctly projecting angle armed with several strong spines, dactylus densely 

 setous outside and minutely denticulated inside ; anterior gnathopoda in male still 

 more strongly built than in female, with the propodos comparatively broader, 

 :uid expanded below to a rounded lobe defining the palm posteriorly, the 

 latter minutely serrulate and distinctly angular above the middle. Posterior 

 gnathopoda of same structure in the two sexes, being much feebler than the 

 anterior and densely setous, propodos narrow oblong and about the length 

 the carpus, palm very short and transverse. Pereiopoda moderately 



