120 



OPHTUROIDEA. 



no. 1, p. 17 [phosphorescence]; Leslie $ Herdman, Proc. P. 



Phys. Soc. Ed. vi. (1881) p. 88; Lyman, Chall. Pep. Oph. (1882) 



p. 136 : Parrots, Per. Biol. i. (1889) p. 73 ; Fjelstrup, Zoo!. Dan. 



Pigh. (1890) p. 26, pi. ii. fig. 6. 

 Amphiura elegans, Norm. Ann. S- Mag. xv. (1865) p. 109; Houle, 



Proc. P. Phys. Soc. Ed. viii. (1885) p. 141. 

 Amphiura tenera, Liltk. Dansk. J'id. Selsk. Skrift. v. (1859) p ^6 • 



Lyman, III. Cat. M. C. Z. i. (1865) p. 123. 

 Amphipolis squamata, Ljunyman. (Efv. Vet.-Ak. Fiirh. 1871 (1872) 



p. 645. " 



Amphipolis tenera, id. ibid. 

 Amphipolis tenuis, id. t. c. p. 646. 

 Amphipolis lineata, id. t. c. p. 634. 

 Amphipolis kinbergi, id. t. c. p. 646. 

 Amphipolis elegans, id. ibid. 

 Amphipolis appressa, id. t. c. p. 647. 



Ophiura moniliformis, Grubc, Act in. $c. Meer. (1840) p. 18. 

 Asterias noetiluca (?), Viviani, Phosph. Mar. (1805) p. 5. 



A small species, not more than an inch or an inch and a half in 

 spread. Arms five to nine times the radius of the disk. Disk 

 rounded; covering-scales small and imbricating; radial shields in 

 contact along the whole of their inner edge. The delicate flattened 

 arms have three or four fine spines ; two tentacle-scales ; ventral 

 shields irregularly pentagonal. Three mouth-papilla on either side, 

 and often the outermost the largest. 



Colour, when dried, light or darker yellow. In life greyish. 



R. /•. 



13 2. 



16 2-3. 



18 3. 



Distribution. North Atlantic, Arctic Ocean, West Indies, Cape 

 S.E. of Australia. To 120 fins. 



a-c. Coast of Down. Belfast Nat. Hist. Soc 



d, e. 50° 24' 45" N., 10° 07' 30" W., 70 fms. G. C. Bourne, Esq. 

 f-h. Liverpool. 



/../. Aberdeen. G. Sim, Esq. 



4. Amphiura securigera. 



Ophiopeltis securigera, Bub. $ Kor. Vet. Akad. Blandly. 1844 



(1846), p. 236, pi. vi. figs. 3-6; Sars, Norg. Ech. (1861) p. 14; 



Norman, Ann. $ May. N. II. xv. (1865) p. Ill ; Wyv. Thomson, 



Depths of the Sea, (1873) p. 124. 

 Amphiura securigera, Lyman, Chall. Pep. Oph. (1882) p 148- 



Boyle, Proc. Boy. Phys. Soc. Ed. viii. (1885) p. 141. 



Mr. Xorman writes of this species, which I have never seen : 



- Disk having the radiating scales long, narrow, and parallel. 

 Arms extremely long and very slender ; upper scales triangular, 

 lower cordate; lateral scales bearing three spines, of which the 

 upper and lower are simple, but the middle is much swollen in the 

 centre, and apically produced into an anchor- or, rather, axe-formed 

 semicircular head, having a jagged edge. 



