G. W. LIcHTENTHALER. 37 
part of head. Sucker compactly clothed on its whole outer and 
anterior surface with microscopic hair-like spines, central portion 
of sucker blackish anteriorly; no jaws or other trophi apparent, 
but such are probably concealed within the sucker-like capsule, 
thus explaining the blackish central appearance of the latter an- 
teriorly. Iwo diverging pairs of lines run backward from this 
sucker, on the dorsum of head, the two lines of each pair having 
a common origin and being also divergent. A round blackish 
dot at origin of each pair. The inner line of each pair extends 
farthest posteriorly, the outer line being curved inward towards 
the other at its extremity. Antenne situated on anterior dorsal 
edge of head just posterior to sucker-like organ, consisting of 
three joints; two basal joints stout, nearly equal in length and 
thickness, geniculate; the terminal or third joint minute, tooth- 
like, and with a similar shorter joint just inside it at its base, 
also arising from the second joint. Ventral surface of head also 
showing the two diverging pairs of lines, themselves diverging, 
and with the outer one of each pair terminally curved inward, 
but the inner lines are shorter than the outer ones. A short 
transverse suture or line jnst posterior to antenna on side of head, 
running to outer one of the two pairs of longitudinal lines. This 
short transverse line also shows on dorsal surface of head, and is 
apparently only a suture. 
Described from one specimen, Mesilla valley, N. Mex. 
G. W. LICHTENTHALER. 
Mr. G. W. Lichtenthaler, one of the most earnest, energetic, and emi- 
nent of American concologists, died inSan Francisco Feb. 20th. For twenty 
years he has done nothing but travel and collect, and his vast collection 
embraces 6,000 or 8,000 species of shells, 1,000 species of marine alge, and 
500 species of ferns, besides many thousands of duplicates. This entire 
collection he bequeathed to the Illinois Wesleyan University at Blooming- 
ton, Ill., the city which has been his home for the most of his life. In 
addition to this valuable collection he bequeathed $500 to put it in suitable 
shape for preservation. This gives the Illinois Wesleyan University one of 
the most valuable conchological collections of the country. The ferns and 
algee are from every part of the world, and the ferns have a complete collec- 
tion of those of the Sandwich Islands, and nearly a complete collection of 
those of North America. The entire collection will be arranged as speedily 
as possible, and will be accessible to all students of the subject, as well as 
to others. 
