JAPANESE ASTEROIDEA. 371 



aboral surface between the paxillae, but are absent in the centre 

 of the disk and in the distal half of the arms, where the paxillae 

 are more irregularly arranged. 



Madreporite. — The madreporite is very flat and is very slight- 

 ly raised above the bases of the paxillaa. It lies about midway 

 between the centre and the margin of the disk, is irregular in 

 outline and notably lobed at the margin. It bears a few paxillae 

 on its surface, and is completely hidden from view in undenuded 

 specimens (PL VIII, fig. 135). 



Terminal plate. — The terminal plate is comparatively large 

 and somewhat elhptical in outline when viewed from tlie 

 aboral side. It is deeply furrowed on the actinal side. 



Locality. — My specimens are from the following localities, all 

 near one another : Tokyo Bay, Sagami Sea, Uraga Channel, 

 ^Misaki. The bathymetrical range of this species appears to be 

 somewhat wide, being from 20 m. to 480 m. 



Specimens in S.C., F.B., I.H.S., 0. 



FseudarcJiaster pm^elii (Düben & Koren). 



According to Ludwig [ : 00, p. 449] this starfish was describacl for the 

 first time by Pakelius [1768, p. 350] under tlie name of Asterias aranciata 

 var.^^ It was then redescribed by Düben and Koren [ '46, p. 247] imder 

 the name of Astropeden parelii, a name adopted by Sars [ '50 p. 161], who 

 later cliang:ed it to Arcliaster parelii [ '61, p. 35]. These citations are made 

 on the authority of Ludwig. 



■ In discussing the correlation of the form of the amhulacral feet and the 

 presence or absence of an anus, Müller refers to the present species as 

 follows [ '54, p. 48] : " Astrop3cten Parelii' r. D. et K. hat küi'zlich ein Bei- 



1) DuJAEDiN and HupÉ write " Asterias auraniiaca Tar." 



