Norwegian Solenogastres. 35 
to the museum of Bergen. As to Proneomenia jilijormis, ,,de- 
scribed“ by Hansen (1888), this animal was probably not a 
Solenogastre. In any case the type is lost, as ascertained by 
prof. BRINKMANN at Bergen, and the form therefore cannot be 
identified. 
Proneomenia sluiteri HUBRECHT 1880. 
Norwegian North Atlantic Exped., St. 275, 74° 8’ N, 31° 12’E, 
meen, clay, 1 sp., |. 90, br..7.6; St. 363, 80° 3’ N, 8° 28 E, 475 m, 
clay, 2 fragments, max. br. 4.2. — As the species has been thoroughly 
examined by HuBRECHT (1881), HEUSCHER (1892) and THIELE (1902), 
I have considered it unnecessary to subject the present material 
to a renewed investigation. 
Dorymenia sarsi KOREN & DANIELSSEN (1877) (Solenopus) ; 
Simrothiella sarsi PILSBRY (1898), THIELE (1913). 
(Figs. 53—58.) 
Kristianiafjorden, 190—225 m. (G. O. Sars; B.), 1. sp. both ex- 
tremities of which were cut away. This is the prototype of 
KOREN & DANIELSSEN, who state its dimensions to be 70 mm in 
length and 3 mm in breadth (the fragment in my possession 
measured only 1.4 mm in breadth). It has been the subject of 
HANSEN'S investigation of 1888. — Bergensfjord, 400—500 m (Ex- 
cursion), 1. sp., 1. 35, br. 1.5 — Byfjorden, Bergen, 400—450 m 
(Excursion **/s 1912), I. sp., 1. 39, br. 1.4. — Lærdalsfjord, Sogne- 
fjord, 300 m (,, Armauer Hansen“ St. 5, "?/5 1917), I. sp., 1. 53, br. 2.3 
(frontal end torn off) — Norwegian North Atlantic Exped. St. 3, 
@eeaemients, br. 1.7; St. 200, 71° 25' N, 15° AV E, 1134 m, clay, 
I fragment, br. 1.7 (all belonging to the Bergen museum). 
Only two specimens of this collection are complete; of an- 
Other, the largest one, the anterior end is broken off. On the 
latter and one of the former the following anatomical investigation 
was based. The organization of the two end parts of the animal 
was determined by dissection under a binocular microscope, and 
some transverse sections were made from the median part of the 
body. For the purpose of comparison some sections were also 
prepared from the original specimen of KOREN & DANIELSSEN. 
From the facts thus established the following diagnosis of 
the present species may be deduced: 
Body vermiform, narrow, of uniform breadth throughout, its 
length about 25—30 times the breadth; anterior end pointed- 
