REPORT ON THE ASTEROIDEA. 437 
circular, translucent granules. Three abactinal and two marginal series of plates present. 
Large papulze occur between the series of plates, one opposite each suture, and these form 
regular longitudinal lines between the rows of plates. 
Adambulacral plates small. Armature consisting of two spines, which radiate apart 
and form two regular longitudinal series, one directed towards the furrow, the other 
outward. 
A single series of actinal intermediate plates present between the infero-marginal and 
adambulacral plates, which bear two or rarely three spines, placed side by side, and form- 
ing a longitudinal series along the ray. A few additional plates similarly armed are 
present at the base of the ray in large specimens. 
Madreporiform body small, circular, occupying the centre of a primary basal plate. 
Strize coarse and regular in arrangement. 
Anal aperture distinct ; excentric in position. 
Small forcipiform pedicellarize present on the lateral regions of the rays and also, but 
less frequently, on the abactinal areas in the neighbourhood of the papule. 
Ambulacral tube-feet, with a fleshy terminal disk centrally invaginated, forming four 
alternating rows along the greater part of the ray; at the extremity the arrangement is 
in simple pairs. 
Remarks.—This exceedingly handsome form appears to occupy an intermediate posi- 
tion between Zoroaster and Stichaster. So far as known it is limited to the northern 
area of the Atlantic. 
Chorology of the Genus Neomorphaster. 
a. Geographical distribution :-— 
ATLANTIC : One species between the parallels of 35° and 45° N. 
Neomorphaster eustichus, off the Azores. 
8. Bathymetrical range : 900 to 1000 fathoms. 
y. Nature of the Sea-bottom: Pteropod ooze. 
Chorological Synopsis of the Species. 
Ocean. Range in Fathoms. Nature of the Sea-bottom. 
Neomorphaster eustichus . é Atlantic. 900 to 1000. Pteropod ooze. 
