44 U.S. NATIONAL MUSEUM BULLETIN 264 



MCZ 4196 (3 alcohol), Albatross Sta. 4902, southwest of Goto Islands, 

 Japan, 139 fms. 



MCZ 4207 (3 dry), Albatross Sta. 5092, see above. 



MCZ 4208 (4 dry), Albatross Sta. 4902, see above. 



MCZ 4209 (1 dry), Albatross Sta.. 4934, off Kagoshima, Japan, 103-152 

 fms. 



Laganum dyscritum H. L. Clark 



Echinoderm Fauna of Australia, p. 344, 1946. 

 = Laganum depressum Lesson — see Mortensen's Monograph of the 

 Echinoidea, vol. 4, no. 2, p. 315. 



Paratypes: 



MCZ 6019 (8 dry). Low Isles, North Queensland, 1928. 



MCZ 7020 (2 alcohol), west of Low Isles, North Queensland, 1928. 



Laganum putnami A, Agassiz 



Proceedings of the Academy of Natural Sciences, Philadelphia, p. 359, 

 1863. 



Syntypes: 



MCZ 2251 (1 dry), Ousima, Japan. 



MCZ 2252 (1 dry), see above. 



MCZ 2597 (1 alcohol), see above. 



Laganum, solidum de Meijere 



Die Echinoiden der Szfto^a - Expedition, p. 121, taf. 6, figs. 64, 66, 1904. 



Syntype: 



MCZ 2658 (2 dry), Siboga Sta. 289, off south coast of eastern Timor, 

 62 fms. 



Laganum strigata A. Agassiz and H. L. Clark 



Bulletin of the Museum of Comparative Zoology at Harvard, vol. 50, 

 no. 8, p. 250, 1907. 



= Peronella strigata (Agassiz and Clark)- -see Mortensen's Monograph 

 of the Echinoidea, vol. 4, no. 2, p. 295. 



Holotype: 



USNM 34206 (dry). Albatross Sta. 3859, Pailolo Channel, Hawaii, 

 138-140 fms., Apr. 9, 1902. 



Leptodiadema purpureum A. Agassiz and H. L. Clark 



Bulletin of the Museum of Comparative Zoology at Harvard, vol. 50, 

 no. 8, p. 239, 1907. 



Holotype: 



USNM 27555 (dry). Albatross Sta. 3847, Molokai, Hawaii, 23-24 fms., 

 Apr. 8, 1902. 



