I’. R. Cowper Reed—A New Species of Lichas. O97 
First lateral furrows of uniform strength for their whole length and 
completely marking off fhe median lobe of the glabella; they converge 
at first strongly inwards, then curve backwards and run almost 
parallel on each side of the neck, curving again a little outwards. 
before meeting the occipital furrow, which they do at an angle of 
about 70° or rather less. ‘The axial furrows curve gently outwards. 
round the front end of the lateral lobes, then bend slightly inwards, 
describing a weak concave curve in their course to the occipital 
lobes, outside which they bend strongly outwards. 
The occipital furrow consists of a median straight portion at the 
base of the median lobe of the glabella, and the paired lateral portions 
displaced rather forwards, which enter the axial furrow at right 
angles. The occipital ring is broad, flattened, and somewhat arched 
forwards, with the two oblique lateral furrows cutting off the occipital 
lobes; there is no distinct median tubercle. 
Restored outline figure of Lichas (Homolichas) melmerbiensis, sp. nov. : 
Dufton Shales, near Melmerby. 
Fixed cheeks small, reniform, convex, about half the length of the 
glabella, and about two-thirds the width of the lateral lobes, along 
which they extend to a point rather in front of their middle. The 
posterior part of the fixed cheek bends strongly outwards behind the 
eye, and extends for less than half the distance between the axial 
furrow and the lateral margin of the head-shield. The eye-lobe is 
flattened and separated off by a distinct shallow furrow, which is 
weakly angulated in the middle. 
Free cheeks consisting of an inner swollen portion, which rises up 
suddenly almost to the level of the glabella and nearly overhangs the 
front margin, and of an outer lateral portion, which is depressed, 
weakly convex, and triangular, and is prolonged backwards into the 
large pointed genal angles. Eyes semilunate, narrow, about one-third 
the length of the glabella, and are supported on the swollen portion 
of free cheeks. i 
