PLATE XIII. 



Fig^. 48. Dicti/orircus dathratiis Jørg. n. sp. Hemiing-svær, -% 1899. a °"7i, b— e ■'""/i. As regards the sig-iiitieation of the letters, 

 cfr. above p. 125 and p. 130. 



a. Dorsal view. 



b. Dorsal-lateral vie\\-. 



c. Sagittal view . Only the meshes f, the spines g and the right side of the spines k and meshes c are illnstrated. 



d. Lateral view. 



e. Ventral view. 



„ ii). Cnratospyns hijperhorea Jørg. n. sp., ''■''Vi. The Vest Fiord Vj 18'*9, 0—200 m. 



,, 50. Pledacantha oiJcislcos Jørg., *°7i- Ofoten II, Va 1899, — 10(» m. Apical view. Diameter of the network about 65 ;).. 

 „ 51. P. oiJdslcos JøKG., var.: ■'"Vi- Sea off Røst, "Vi 1899, — 900 m. Very strong spines and arches, 

 i). Ventral view; the piimary ventral arch and the primary ventral mesh in front. 



b. The same specimen, apical view. Length of spine D 55 [j-; greatest breadth of the beams G \>.; largest mesh (the secondary 

 mesh to the right of spine D) 22 x 15 [j.. 



c. The same, lateral ■view; the left lateral arch and the left lateral mesh in front. 



(1. The same, lateral vieAV ; the right lateral arch and the .right lateral mesh in front. 



e. The same as the foregoing, but turned 90° upwards. The mesh beyond (and below) the right lateral mesh in front. 

 52. P. oiMskos Jørg., ^''Vi- The Vest Fiord 1, "A 1899, 0—180 m. Young specimen. Antapical view. 

 „ 53. P. oildslcos Jørg., ■'"Vi- Henningsvær, "Vs 1899, 0—280 m. Lateral view; the right lateral arch and mesh in front. 

 „ 54. The same, ^'"Vi- Dorsal view. 

 „ 55. P. oihislws Jørg., ■■■'*Vi- Helligvær, 'Vi 1899, 0— 25(» m. 



a. Lateral view; the right lateral arch in front. 



b. The same, turned a little upwards and to the left. , 



c. Lateral view; the riglit lateral main spine in front. The unclosed network is seen. 



d. Lateral view; the meshes under the right lateral spine in front. 



e. Antapical view. 



„ 5(3. /*. oihshos Jørg., ■*^Vi- 



a. .Somewhat oblique antapical view. The Vest Fiord II, 0—200 m., ''Vi 1899. Diameter of the network about 5it |).. 



b. Oblique antapical view. Sea off Aalesnnd, (il" 56' n . 2" 40' e., 'Vs 1893, m. (S/S Michael Sars). Diameter of the network 

 about 60 ]J-. 



„ 57. P. oildskos Jørg., ^**Vi- A well developed specimen from Henningsvær, -'Vs 1899. — 280 m. 



a. Ventral view; the ventral arch and the notwoi'k above, in front. 



b. The same, apical view. 



„ 58. P. frichoi(l(v Jørg. n. sp., ''"Vi- Ventral-latei'al view; the right lateral spine in front. Sea north of Shetland, 03" 36' n.. 

 0» 32' e., 'V2 1903 (S/S Michael Sars). 



