PLATE XVIII. 



Fig. 101. b. Dictyoceras acanthimm Jøkg., ■*"7i. The Herlø Fiord (near Bergen), =7* 1898, 0— iOO m. Cephalis .33 [j. high X 31 

 broad; thorax 73 x 101; abdomen 38 x 126 ji. Pores of the cephalis 3.5 n, of the thorax 4—7.5 ]j., of the abdomen 

 (5—10 1^. 

 ., 102. Stichocorys seriafa (Jørg.) Jørg., ■'^o/,. Øxsund, "A 1899, 250—350 m. A well developed specimen. 



,. 103. St. seriata (Jørg.) Jørg.. *=°/u 8ea off Aalesund, 61" 5«' n., 2" 40' e., 'V2 1903, m. (S/S Michael Sars). A well devel- 

 oped specimen. 

 ., 104. St seriata (Jørg.) Jørg., «7i. Sea north of Shetland, 63° 36' n., 0" 32' e., ^Va 1903, m. (S/S Michael Sars). A well 

 developed specimen. Length (tophorn not included) 128 |)-, greatest breadth 72 jj.. Largest pores 6 |x long. The pores on 

 the upper part are omitted in the figure. 

 [Figs. 105—106, on pi. XVII.] 

 ., 107. Acanthocorys umhelUfera Hck. (?), "0/j_ The Oster Fiord (near Bergen), ^Ve, 1900, 200 — 400 m.; Cephalis 54 \i. high x 46 



broad, thorax 38 x 96. 

 ,, 108. Lithovielissa setosa Jørg., ""7i- Kvænangen, -■'/i 1899, — 140 m. 



a. Lateral view; the spine Lj in front. 



b. Ventral-apical view; the sagittal ventral spine in front upwards. The inner lattice plate between tiic spines V and Lj is 

 seen; also the axial spine", a. The specimen not fully developed. 



., 109. Am^Mmelissa setosa (Ch.) J ønG., •'•'7i. Near Jan Mayen, S/S Michael Sars 1900, st. 19, Vs, 50 — 100 m. Young specimens (?). 



a. Antapical view. 



b. Another specimen; dorsal view. 



„ 110. Cannosphæra lepta Jørg., ■'°7i. The Herlø Fiord (near Bergen), ^7= 1898, n — 300 m. Some tangential and radial beams. 

 ., 111. Challengeron Channeri (Mtjrr.) Hck., ^oo/^^ gg^, 40 miles N\V of Gaukværo, ^Vi 1899, 0—700 m. Peristome and radial 



spines broken off. The crossing lines in the middle indicate the structure of the shell. 

 ., 112. Oh. armatum Borg., *^"/i. From the same locality- Illustrated from a sketch, as the specimen was lost before a complete 



drawing could be finished. 

 ,, 113. Cadium melo (Cl.) Borg., *^'^/i. Sea off Røst, "/a 1899, 0—900 m. 85 [i long x 60 |x broad. 

 „ 114. House oi Leprotintinnus pellucidus (Cl.) Jørg., ■'°7i- The Skjerstad Fiord IV, Vj 1900, 0—300 m. Foreign bodies on the 



house much more numerous than usual. 

 „ 115. House of Tmtinnopsis nitida Brandt, vav. ovalis Jørg. n. var.; """/i. Moskenstrommen, 'Vi 1899, 0—100 m. Length 43 n, 



greatest breadth 38 ji; breadth of the mouth 22 \i.. 

 „ 116. House of T. nitida Brandt, var. sinuata (Brandt); '™/j. Moskenstrommen, 'Vi 1899, — 50 m. Lengtli 83 \>., breadth of 



the mouth 58 (i, breadth in the middle 46 |i.. 

 „ 117. Codone.Ua lagenula (Clap, et Lachm.) Entz, var. orata Jørg.; ="7i- From the west coast, near Bergen. 

 ., 118. Ptychocylis nrnula (Clap, et Lachm.) Brandt var. subarctica Jørg. n. var; ""^71. Lyngen II, 0—250 m., -'Vi 1899. The 



plicæ of the house only indicated near the mouth, where they are more conspicuous. 

 „ 119. Cyttarocylis doiticulata (Ehrb.) Fol., rar. subedentata Jørg. n. var.; *^°/u Kvænangen I, ■*/i, 0—50 m. Length 111 [jl, 



„tail tip" 12 |x; breadth of the mouth 49 [>.. 36 teeth. Areoles omitted in the figure. 

 „ 120. C. denticiilata (Ehrb.) Fol., var. subedentata Jørg.; ^'^/i. The Ogs Fiord, ^Vs 1899, 0-90 m. Lengtli 145 |jl, tail 34 |j.; 



breadth 51 |).. 36 teeth. Areoles 2V2 on 10 |x, omitted in the figure. 

 [Fig. 121 on pi. XIV]. 



