162 



Wyatt-Edgell—On a New Species of LicJias. 



second lobes; thence they converge and are parallel with the first pair. 

 When they reach the third lobes (at which point the third farrows 

 branch off from them), they are abruptly bent, and directed 

 almost on each other, are soon lost in the neck-furrow. The third 

 pair of furrows are short and not deep, making, with the second 

 pair, angles of 130°, which are the anterior angles of the small 

 neck-lobes ; these are in the form of sectors of a circle, for their 

 posterior edge is curved. The second lobes are convex and elongate, 

 indented in the centre by the eyes ; they are continued as far as 

 the neck-furrow, outside the third pair. This furrow is straight 



LiCHAS PATRIARCHUS, NOV. SP, LlANDILO FlAGS. 



Pont Ladies Quarry, Llandilo. 



Fig. 1. Head of Lichas patriarchus, with sides restored. 



Fig. 2. Tail of same, restored from a specimen belonging to Mr. Eskrigge. 



Fig. 3. Labrum of same. 



Fig. 4. Anterior margin of head, as seen in Mr. Eskrigge's specimen. 



Fig. 5. Portion of head magnified. Fig. 6. Portion of tail magnified. 



in the centre, and curved round the third lobes ; outside them it 

 sweeps forward, parallel to the posterior margin of the head. The 

 space between the two is in the centre one -sixth, and at the neck- 

 lobes one-twelfth of the whole length of the glabella. This in 

 my specimen is about six lines ; in a larger one of Mr. Eskrigge's it 

 is about ten lines. 



I have only one specimen of a pleura, which shows the pleural 

 furrow to be very deep, and continued, apparently, to the outer 

 extremity. 



