266 COLE 
The description of Ammothea longicaudata Stimpson (64, p. 159) will 
apply in most respects to A. /atifrons, but the description is so generic 
that it would apply almost equally well to a number of other species. 
Furthermore, Stimpson’s single example was evidently an immature speci- 
men, and if, as he says, the palpi were g-jointed,! it is not unlikely that it 
belongs properly in the genus Ammothella. On the whole it seems best 
to regard it as a distinct species until further material from the region of 
Puget Sound shall enable us to settle the question. 
All the specimens of A. /atifrons had a quantity of foreign material 
entangled in the spines; those in the lot from Dutch Harbor especially 
were covered with this débris, containing, among other things, small 
brownish stalked bodies (similar ones are not infrequent on Pycnogonida) 
and groups of small cases appearing much like egg-cases of some ani- 
mals, possibly the same as those referred to by Hoek (’814, p. 143). 
pe a 
AMMOTHEA ALASKENSIS sp. nov. 
Plate xu, fig. 4; plate xvii, figs. 4-12. 
Type.— 2 and ¢, University of California, No. 19,505, Orca, Alaska. 
Trunk short, stout, smooth; sutures very indistinct; first segment square 
in front, affording a broad attachment for the chelifori and palpi; lateral 
processes about equal to width of body, larger distally, and closely 
approximated, so that the body appears nearly circular in outline; a small 
protuberance with a short spine on the dorsal side of each process near 
the distal end. 
Caudal segment long, narrow, somewhat smaller proximally, reaching 
to about the middle of the first coxal joint of the posterior pair of legs; 
with 3 or 4 small spines near the apex and a large bristle on the 
dorsal side. 
Eye tubercle low, conical; the posterior side more slanting and with 
more of a ‘hip.’ Eyes large, at about the middle of the tubercle; no 
noticeable difference in size. 
Proboscis about as long as trunk to base of caudal segment, distinctly 
fusiform in dorsoventral view, strongly convex on dorsal side and more 
nearly straight on ventral when viewed laterally; with a more or less 
irregular annular constriction about a fourth of its length from the apex. 
Chelifori considerably less than half the length of the proboscis; first 
joint with a considerable triangular projection distally on the dorsal side, 
terminating in a small bristle; second joint small, globular, arising some- 
1‘ Chelate ‘ antennz’ much shorter than the proboscis; their slender lower branch, 
however, is much longer, nine jointed,not tapering, and with blunt extremity” (oc. cét.). 
