56 U.S. NATIONAL MUSEUM BULLETIN 264 



Peronella ludwigii Pfeffer 



Verhandland Naturwissenschaft Vereins Hamburg, p. 61, fig. 3, 1880. 

 = Peronella orbicularis. -see Mortensen's Monograph of the Echinoidea, 

 vol. 4, no. 2, p. 286. 



Syntype: 



MCZ 7546 (1 dry), Quinhon, Annam. 



Phormosoma bursarium A. Agassiz 



Challenger Echinoidea, p. 99, pi. 10, 1881. 



Syntype: 



MCZ 837 (1 dry), Challenger Sta.. 200, off Mindanao, 255 fms. 



Phormosoma hispidum A. Agassiz 



Bulletin of the Museum of Comparative Zoology at Harvard, vol. 32, 

 no. 5, p. 77, pis. 6, 7, 1898. 



= Tromikosoma hispidum (Agassiz)- -see Mortensen's Monograph of the 

 Echinoidea, vol. 2, p. 178. 



Syntype s: 



MCZ 857 (1 dry). Albatross Sta. 3413, north of Galapagos, 1,360 fms. 



MCZ 858 (3 dry). Albatross Sta. 3376, south of Malpelo Island, 1,132 

 fms. 



MCZ 859 (3 dry). Albatross Sta. 3392, southeast of Cape Mala, 1,270 

 fms. 



MCZ 860 (2 dry). Albatross Sta. 3362, east of Cocos Island, 1,175 fms. 



MCZ 861 (1 dry). Albatross Sta. 3375, south of Malpelo Island, 1,201 

 fms. 



MCZ 862 (3 dry), Albatross Sta. 3400, east of Galapagos, 1,322 fms. 



MCZ 863 (1 dry). Albatross Sta. 3431, off Attata, Gulf of California, 

 995 fms. 



MCZ 806 (1 dry), same as 859. 



MCZ 807 (1 dry), same as 859. 



MCZ 934 (4 alcohol), same as 859. 



MCZ 935 (3 alcohol), same as 858. 



phormosoma indicum Doderlein 



Zoologischer Anzeiger, vol. 28, p. 621, 1905. 

 = Phormosoma bursarium (Agassiz) — see Mortensen's Monograph of 

 the Echinoidea, vol. 2, p. 135. 



Syntype s: 



MCZ 842 (1 dry), Pemba Channel, East Africa, 5024'S., 39O20'E., 455 

 fms., Valdivia collection. 



MCZ 915 ( 2 alcohol), same as 842. 



