54 U.S. NATIONAL MUSEUM BULLETIN 264 



Syntypes: 



MCZ 2830 (5 dry), Challenger Sta. 210, off Negros, Philippines, 

 375 fms. 



MCZ 2831 (9 alcohol), same as 2830. 



MCZ 2788 (1 dry), same as 2830. 



Palaeotropus thomsoni A. Agassiz 



Bulletin of the Museum of Comparative Zoology at Harvard, vol. 8, 

 p. 80, 1880. 



Holotype: 



MCZ 2832 (dry), Blake Sta. 321, off South Carolina, 32045'25"N., 

 77O20'30"W., 233 fms. 



Mortensen (Monograph, vol. 5, no. 1, p. 299) stated that this cannot be 

 a Palaeotropus , but is probably a "Rhinobrissus." 



Paracentrotus grandis H. L, Clark 



Annals of the South African Museum, vol. 13, p. 388, 1923. 

 = Polyechinus agulhensis (Doderlein) — see Mortensen's Monograph of 

 the Echinoidea, vol. 3, no. 3, p. 118. 



Paratype: 



MCZ 4503 (1 dry), southeast of Cape Agulhas, Cape Colony, 36049'S., 

 2lOl4'E., 560 fms., Pieter Faure, 1920. 



Parasalenia gratiosa A. Agassiz 



Bulletin of the Museum of Comparative Zoology at Harvard, vol. 1, 

 p. 22, 1863. 



Syntypes: 



MCZ 1769 (1 dry), Gilbert Islands. 



MCZ 1039 (1 dry), Gilbert Islands. 



MCZ 2095 (1 alcohol), Gilbert Islands. 



Parasalenia gratiosa var. boninensis Mortensen 



Annotationes Zoologicae Japonenses, vol. 12, p. 388, pi. 1, figs. 2-5, 

 1930. 



Syntype: 



MCZ 7584 (1 dry), Bonin Island. 



Par echinus angulosus var. pallidus H. L. Clark 



Annals of the South African Museum, vol. 13, p. 386, 1923. 



Syntypes: 



MCZ 4490 (6 dry), Pieter Faure Sta. 14642, off Saldanha Bay, Cape 

 Colony, 2 fms. 



MCZ 4521 (2 alcohol), same as 4490. 



