CLARK: JAPANESE AND EAST INDIAN ECIIINODEKMS. 309 



Maretia planulata. 



Spatangus planulatus Lamarck, 1816. Anim. s. Vert., 3, p. 31. 

 Meretia planulata Gray, 1855. Cat. Iiec. Ech. Brit. Mus., p. 48. 



3 specimens, about 45 mm. in length ; Sagami Bay (35° 10' N. x 139° 48' E.), 

 Japan. Owston collection. 



Lovenia gregalis? 

 Alcock, 1893. Journ. Asiat. Soc. Bengal, 62, p. 175. 



1 specimen, 26 mm. long. Sagami Bay (35° 12' N. x 139° 44' E.), Japan, 

 60 fathoms. Owston collection. 



Although there can be little question that this young spatangoid is a Lovenia, 

 there is abundant room for doubt as to its being gregalis, for the specific charac- 

 ters are not yet evident. 



Brissus carinatus. 



Spatangus carinatus Lamarck, 1816. Anim. s. Vert., 3, p. 30. 

 Brissus carinatus Gray, 1825. Ann. Phil., p. 9. 



4 specimens, 56-93 mm. long. Sagami Bay, Japan. Owston collection. 



Metalia spatagus. 



Echinus spatagus Linne, 1758. Sys. Nat., ed. 10, p. 665 (=: E. maculosus Gmel.). 

 Metalia spatagus Loven, 1887. Ech. des. Linn., p. 162. 



1 specimen, 28 mm. long. Sagami Bay (35° N. x 138° 41' E.), Japan, 25 

 fathoms. Owston collection. 



Schizaster japonicus. 

 A. Agassiz, 1879. Proc. Amer. Acad., 14, p. 212. 



4 specimens, about 50 mm. long. Sagami Bay (35° 22' N. x 139° 40' E.), 

 Japan. — 1 specimen, Sagami Bay (35° 12' N. x 139° 44' E.), Japan. — 

 1 specimen, Uraga Channel, Gulf of Tokyo, Japan, 20-30 fathoms. Owston 

 collection. 



All but two of these specimens are badly crushed. 



Schizaster ventricosus. 

 Gray, 1851. Ann. Mag. Nat. Hist., (2) 7, p. 133. 



4 specimens, about 30 mm. long. Sagami Bay, Japan. — 2 specimens, Tokyo 

 Bay, Japan, 10 fathoms. Owston collection. 



All but one of these specimens are badly crushed. 



