Echinoderinata^ hy Prof. F. J. Bell. 435 



This species, now for the first time recorded from the British 

 seas, is here represented by specimens all larger than Mr. 

 Sladen's type, for the smallest has the greater radius more 

 than 71 millim., and the largest has a greater radius of as 

 much as 100 millim. ; in correspondence with this the number 

 of marginal plates may be much nearer forty than thirty. 

 Mr. Sladen states expressly that there are no spines on the 

 marginal plates, but distinct, though small, spinous tubercles 

 may be developed, particularly on the inferomarginals ; but 

 their distribution is so irregular and their presence or absence 

 seemingly so uncertain as to divest this character of any 

 specific value at all. There is somewhat greater irregularity 

 in the disposition of the adambulacral spines than is indicated 

 in the original description. The groove marking the boun- 

 daries of the disk-pentagon varies a good deal in distinctness ; 

 this may be partly due to the specimens having been, unfor- 

 tunately, dried; this may, further, explain why the abac- 

 tinal disk-plates are not so regular in disposition, the primary 

 embryonic plates so distinct, or the madreporite so prominent 

 as they appear to be in the type specimen. None of these 

 characters are, however, of value as indications of specific 

 distinctness. As the ' Challenger' examples were dredged in 

 1525 fath. south-west of the Canary Isles, the locality at 

 which Mr. Green found his specimens is one which is only 

 probable enough. 



Crihrella sanguinolenta, 0. F. M. 

 Taken at 55 fath. 



Asterias rubens, L. 



Taken at 100 fath. Mr. Green justly remarks that this is 

 a great depth for this species, and Mr. iSiaden, in his recently- 

 issued ' Challeuger ' Report, does not give a lower depth than 

 53 fath. A larger and more normal specimen was taken at 

 55 fath. 



Brisinga coronata, G. O. Sars. 



An injured specimen was brought up from 1000 fath. This 

 depth is interesting, for though the species is known to come 

 from still greater depths, all those reported for examples taken 

 during the * Porcupine ' cruises are less *, 



* See Sladeu, Cball. Rep., Asteroid, p. 604. 



