296 s. goto: 



with a large liiuule, l)Jit tapering, att<iniiate, and pointed at the tips of tlie 

 jaws. On tlie outer edge of the plate are usually two or three very 

 delicate, shoii, cilia-like spiuelets. 



" Tlie infero-marginal plate is separated from the adambulacral plate 

 tln'oughout the ray by a small well-defined intermediate plate. This on the 

 inner part of the ray may bear a comparatively large two-jawed forficiform 

 pedicellaria, similar to, but rather smaller than, that on the adambulacral plate, 

 and two or tlnee small cilia-hke spinelets ; but usually along the greater 

 part of the ray, and always on the outer part, (jnly a few small ciliary 

 spinelets are present. 



" The mouth-plates are comparatively small. Each plate bears at its 

 innermost j^xjint a large forficiform pecicellaria, forming a pair directed 

 horizontally over the actinostome ; and sometimes a second pair stand 

 immediately below these, in the place of the fii'st actinal or superficial 

 spines. The marginal spines and acfcinal spines are subequal to one another 

 in size, and diminish as they recede from the mouth ; the actinal spines 

 forming a series parallel to the median sutiure of the mouth-plates. 



" The actinal interradial areas are very small, and do not contain more 

 tlian two or fom- small intermediate plates, which bear either a foi"ficiform 

 pedicellaria or a group of small ciliary spinelets. 



" The madreporiform body is hidden by paxillie. 



" Coloiu' in alcohol, ranging betAveen light yellowish drab and dii-ty 

 greenish grey ; with a very dark broad band, almost black in some speci- 

 mens, dark sage green in others, along the median radial line, extending 

 to the centre of the disk, in some specimens fading out giuduaUy at the 

 sides, in others terminating more abruptly. At the extreme tip. of the ray 

 the whole area is of tliis dark colour, whilst the ocular or terminal plate is 

 white, and hence very conspicuous 



" Locality. — Yokohama. May 6, 1875. Depth 2 to 25 fathoms. 



" Remarks. — Tliis species is perhaps most nearly related to a I/uidia 

 from Singapore, preserved in the University Museum at Copenhagen, which 

 l:)ears the name of Luidia chefuensis, Gkube ; but the two forms are dis- 

 tinguished by a number of well-defined cliaracters. In Luidia limhaia the 



