Norwegian Solenogastres. 41 
is the posterior end of the animal that is prolonged into a 
process and not the anterior as KOREN & DANIELSSEN state in 
their diagnosis (I. c. p. 128); nevertheless the former must have 
committed the same mistake in studying his sections. Doubtless 
he has been influenced in his view by the occurrence of true gills 
in Solenopus margaritaceus, where he finds them to be ,noch 
deutlicher und ganz unzweifelhaft“, an expression that seems to 
indicate some hesitation as to the supposed branchial nature oi 
the formations in question in S. sarsi. 
Anamenia borealis KOREN & DANIELSSEN 1877 (Solenopus). 
(Figs. 59—66.) 
Vadsø, 1 sp., 1. 20 (G. O. Sars; K) — Lofoten, 1 fragment, 
br. 3.3 (G. O. Sars; B) — Norwegian North Atlantic Exped. St. 
18, 62° 44’ N, 19,48" E, 753 m, clay, 1. sp., I. 15, br. 2 (prototype; B); 
St. 237, SW of Jan Mayen, 70" 41" N, 10° 10’ W, 481 m, brown 
clay, stones, 1 sp., 1. 15.5, br. 1.7 (B). — Trondhjemsfjord, Skarn- 
sund, 200—150 m, Paragorgia-Lophohelia reef, 4 sps., max. I. 
about 20, all specimens coiled (TH. MORTENSEN *'/7 1911; C.). 
Body lengthened, slightly depressed towards the ends, chieily 
posteriorly; both ends rounded. Back with a narrow longitudinal 
keel (fig. 60), formed by the cuticula exclusively. Ventral furrow 
with 3 folds, separated posteriorly from the cloacal cavity by a 
small invagination with folded walls. Spicula partly tangential, 
partly radial, needle-shaped and hollow, rather variable as to the 
width of their lumen (cf. fig. 66), crossing each other. Sides of 
the ventral furrow clothed with erect spicula. Hypodermis papillae 
of the cuticula with very slender stalks and broad rounded heads 
(fig. 65). Radula distinct though small, with 17 teeth on each side 
of the naked rhachian line, each of a simple produced triangular 
shape. Maximum dimensions of animal: length 20, br. 2.8, h. 2 mm. 
The intestine of the specimen from Vadsø, which was the 
subject of the following examination, contained masses of small 
spicula which, according to a determination kindly made by Dr. 
A. MOLANDER, certainly belong to a species of Gersemia, probably 
G. fruticosa. 
Transverse sections through the median part of the body 
show that it has the following organization (fig. 64): 
