104 



ASXEEOIDEA. 



surface shows stoutish bars forming the framework of the arm, but 

 the spines developed are few, short, and sharp. No major pedicel- 

 lariae, Madreporite near the edge of the disk, rather large. 

 Colour, when dried, light brown. 



Breadth of arm 

 R. r- at base. 



12 3-5 4 



9-5 4 3-5 



9 3-5 3 



a-f. Outer Skerries, Shetland. Rev. Canon Norman 



<j-i. Coast of co. Down. Belfast Nat. Hist. Soc. 



Asterias tenuispinis. 



Asterias tenuispina, Lam/,: An. s. Vert. ii. (1816) p. 561 ; Ludww, Mitth. 

 cool. Stat. Neap. i. (1879) p. 538. y 



I should have included this species in this Catalogue on the strength of a 

 specimen stated w.th a query, to have come from Lyme Regis, and presented by 

 the late Lord Enmskillen, but for the very emphatic answer in the negative 

 which the Rev Canon Norman gave (Ann. & Mag. vi. (1890) p. 502) to my 

 query (/. o. p. 424), « Is Asterias tenuispinis, Lamk., a ' British 'species ? " 



BRJSINGIDjE (seep. 24). 



Key to the Genera of Brisingidoc. 



wlfllT d T al P i PUl88 L Bhisinga, p. 104. 



With dorsal papulae 2 . Odinia, p. 105. 



1. BRISINGA. 



Brisinga, AsbjQrnsen, Fauna Litt. Now. ii. (18-56) p 95- Sars On 

 some Remarkable Forms, eye. (187,5) p . 101 ; Ludwig,ZeUsehr. f. wiss 

 Zool. xxxi. (18/8) p. 210; Sladen, Chall. Hep. Art. (1889) p. 001. ' 



"Disk small, rays less than or not much more than twenty 

 with ridge-like lateral and dorsal bands on the proximal part of 

 the arms ; no dorsal papulae ; major pedicellaria3 numerous • no 

 minor pedicellaria3. 



1. Brisinga endecacnemos. 

 Brisinga endecacnemos, Asbj<prnsen, Faun. Litt. Norr. ii (1856) p 95 

 101 S ' 1_15 ' SaVS ' ° n S ° me Remarkabh Forms $c- (1875) 

 B = 13 or 14 r. 

 Arms eleven, long, delicate, with moderate transverse ridges on 

 the proximal part of the arm ; ambulacra wide, bordered by two or 

 three more or less delicate spines, beyond which is a row of Ion- 

 and rather strong spines. Madreporite prominent 



agtwfcm 17 side ° f Korth AtlaBti0 from s °™> to 



