272 s. GOTO : 



" Other localities : Japan (Müller and Thoschel) ; Bauka Straits 

 (Stockholm Museum) ; Singapore (voN Maetens). 



" Remarhs. — Müller and Troschel's type-specimen in Berlin from Japan 

 collected by Captain "Wendt, wliicli I have examined, conforms in all i)oints 

 — in so far as the dry specimen can be compared — with the form alx)ve 

 described from Hong-Kong. It is, however, somewhat smaller, measming 

 11 = 41 mm., r = 11.5 mm. Tlie thumb-like spinelet is present in the adam- 

 biüacral armatm-e. The thumb is also present in a specimen from Banka 

 Straits preserved in the Stockholm collection, 



" I have also seen the type of Möbius's Sfcllaster svlcatus. It is un- 

 questionably the same species. The two siDecimens are rather small, 11 = 35 

 and 36 mm., with r=12 mm., in the example measm-ed by me. This 

 observer has noted^^ the peculiar bordering of spinelets on the marginal 

 and actinal intermediate plates, also thf! gi-anulate covering of these plates 

 and the general character of the paxiUœ. 



" An example preserved in Copenhagen, which I have also studied, has 

 been carefully described by Lütken/^ who at the same time pointed out that 

 Stellaster sulccdus, Mobius, was sjTionymous with Arcliaster hesperus. 



" In the specimen at Leyden, seen by Müller and Troschel, I find 

 that the thumb-like spine on the adambulacral plates is not so largely 

 developed or so prominent as it sometimes is, nevertheless it is present. 

 The locality of this example is unknown ; it is simply stated in the System 

 der Ästenden to have been collected by von Siebold." 



Sluiter mentions tliis species in the collection of the Museum of 

 Amsterdam [ '95, p. 52] : 



" Craspidaster liesperiis (M. u. Tr.) Sladen. Zahh-eiche Exemplare in 

 Alcohol von der Bai von Batavia aus einer Tiefe von 5-14 Faden (Slui- 

 ter). Nach der jetzt vorhegenden ausfülu'lichen Beschreibimg imd Abbil- 

 dung dieser Art von Sladen, bin ich zu der Ueberzeugimg gekommen, dass 

 die früher von mir als Astropecten macer bescluiebene Form mit dem alten 

 Archaster hesperus M. Tr. identisch ist. Die Zalil imd Form der inter- 



1) Eeferences are made to the papers above cited. 



