CATALOG OF RECENT ECHINOID TYPE SPECIMENS 67 



USNM E4732 (dry fragments), Albatross Sta. 4028, Kauai, Hawaii, 

 444-478 fms., June 24, 1902. 



MCZ 4374 (1 dry). Albatross Sta. 3839, see above. 



MCZ 4375 (1 dry). Albatross Sta. 3865, Pailolo Channel, off Moku- 

 hooniki Islet, Hawaii, 256-283 fms. 



MCZ 4376 (1 dry), Albatross Sta. 4028, see above. 



Psilocidaris echinulata Mortensen 



U.S. National Museum Bulletin 100, vol. 6, pt. 4, p. 283, pi. 60, figs. 

 1-2; pi. 61, figs. 4-5; pi. 63, fig. 4; pi. 73, figs. 3-4; pi. 78, figs. 3-5, 

 1927. 



Holotype: 



USNM E1334 (dry), Albatross Sta. 5127, Nogas Island, near Panay, 

 Sulu Sea, 10°02'45"N., 121°48'15"E., 1,751 meters, Feb. 4, 1908. 



Pycnolampas oviformis A. Agassiz and H. L. Clark 



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

 no. 8, p. 253, 1907. 



Syntypes: 



USNM E926 (1 dry), Albatross Sta., 3838, Molokai, Hawaii, 92-212 

 fms., Apr. 4, 1902. 



USNM E927 (1 dry), Albatross Sta. 3890, Molokai, Hawaii, 71-283 

 fms., Apr. 18, 1902. 



USNM E4743 (1 dry), Albatross Sta. 3838, see above. 



MCZ 4319 (1 dry). Albatross Sta. 3838, see above. 



MCZ 4320 (1 dry), Albatross Sta. 4044, off Kawaihae Light, Hawaii, 

 198-233 fms. 



Pygorhynchus pacificus A. Agassiz 



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

 p. 27, 1863. 



= Cassidulus pacificus (Agassiz) — see Mortensen' s Monograph of the 

 Echinoidea, vol. 4, no. 1, p. 210. 



Syntypes: 



MCZ 2719 (15 dry), Acapulco, Mexico. 



MCZ 2714 (3 dry), same as 2719. 



MCZ 2751 (36 alcohol), same as 2719. 



Rhinobrissus placopetalus A. Agassiz and H. L. Clark 



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

 no. 8, p. 256, 1907. 



- Rhynobrissus placopetalus (Agassiz established this genus in 1872, 

 with the spelling Rhynobrissus. As he did not give the derivation of the 

 name, either here or in his Revision of the Echini, and as there is no 

 indication in his description that he had "rhinos" in mind, there is no 

 justification for emending the spelling to Rhinobrissus). 



