218 Dr. T. A. Chapman’s 
3. LH. epiphron (Fig. 7). The clasp of 
this species with which cassiope, nelamus and other named 
forms agree, has a slight fulness preceding the neck. The 
neck and head are rather less than a third of the total 
length of the clasp, the styles being numerous, very small 
and of tolerably uniform size. In nelamus the clasp is 
slightly shorter and the basal styles more frequently 
somewhat longer. 
4. HE. pharte (Fig. 8). The commence- 
ment of the neck is not very distinct, but the neck and 
head appear to be about one-fourth of the total length of 
the clasp. The styles are large and bold, rather rounded 
than pointed,—indeed several near the base are mere 
rounded nodules; they may be very few in number, those 
basal to the neck being, in some specimens, even as few 
as five or six, in others, as many as sixteen in a double row. 
5. EH. melampus (Fig. 9). There is no 
lobe; the neck and head are fully two-fifths, sometimes 
almost half the total length of the clasp, and of fairly 
uniform diameter. The neck and head have numerous 
small spines in two rows; on the body there are usually 
five or six larger sharp spines with two or three small ones 
in each interval, but there is a good deal of variation 
in this. 
6. #. arcte (Fig. 10). The neck with 
the head is about one-third of the total length of the 
clasp and has a very regular series of about 8 spines with 
smaller ones between; on the body are 8 to 12 spines of 
larger but again of fairly uniform size, and traces of others 
between. 
7. £. christt (Fig. 11). Head and neck 
about a third of the total length: they carry about 8 
bold spines, the 4 distal rather the smallest and the 4 
proximal sometimes reduced to two; no intermediate 
spines. The spines on the body are few and often reduced 
to mere round nodules; the distal ones may be large and 
bold, though rounded. 
8. LE. kefersteint (Fig. 12). The position 
of the neck is usually quite obvious. The neck and head 
carry about 16 styles in two alternating rows, the basal 
ones being few, one or two to five or six. The styles in 
