248 HAWAIIAN AND OTHER PACIFIC ECHINI. 



surface are very much like those of Lovenia but the entire absence of any fas- 

 cioles on the dorsal surface shows that the relationships are clearly with Maretia, 

 as the form of the test indicates. The composition of the subanal plastron is 

 very different from that of ovata, where it is made up of 3 (4?) ambulacral plates 

 on each side, with 2 (3?) large tube-feet, but in this important feature tubercu- 

 lata is surprisingly near to peloria (p. 249). We know nothing about the composi- 

 tion of the plastron in either elliptica or elevata. The occurrence of a Maretia in 

 Korea Strait is interesting for while M. ovata is known from Sagami Bay, it is not 

 recorded from the western coasts of Japan and the genus is essentially tropical. 

 Station 4875. Korea Strait, west of Shimonoseki, Japan. Bott. temp, 

 about 60°. 59 fms. Fne. gy. s., brk. sh. 



Maretia ovata. 



Spatangus ovatus Leske, 1778. Add. ad Klein, p. 188. 



Maretia ovata Hamann, 1904. Bronn's Thier-reich, 2, abt. 3, p. 1397. 



Presumably because Leske's Spatangus ovatus was not identical with Klein's 

 Scutum ovatum, Mr. Agassiz retained in the Revision Lamarck's specific 

 name, planulata, for this spatangoid. But since Klein's names have only a 

 historical interest, and since Leske's name is the first post-Linnaean name for 

 this species, there is no reason for using any other than that name. The species 

 ranges from Reunion and Mauritius to the Gilbert Islands, (I find no records 

 for either the Hawaiian or the Society Islands), north to Japan (Sagami Bay), 

 and south to Port Jackson, N. S. W. Koehler (1914. Ech. Indian Mus. Spat.) 

 has given a very full account of the pedicellariae, with which my own observations 

 accord; the absence of ophicephalous pedicellariae, as well as of globiferous, 

 deserves special note. The Albatross collection contains five specimens and 

 some fragments from the Marshall Islands (a small one is labeled "Wotje") and 

 from Taritari, Gilbert Islands. All were taken in January, 1900. 



Maretia peloria. 



H. L. Clark, 1916. Zool. Res. Endeavour, 4, p. 121. 



Plate 146, fig. 25. 



In my published account of this species from the southern side of Australia. 

 the pedicellariae are fully described but not figured. I give here a figure of one 

 valve (PI. 146, fig. 25) of the remarkable globiferous pedicellariae. No details 



