102 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 
PERONELLA ORBICULARIS (Leske) 
Laganum orbiculare L. AGAssiz, Monographie des scutelles, p. 120, pl. 22, figs. 
16-20, 1841.—pE MetsErE, Siboga Echinoidea, p. 126, pl. 6, figs. 69, 73-75; pl. 
18, figs. 835-339, 1904. 
Peronella orbicularis, A. AGASSIz, Revision of the Echini, pp. 149, 521, 1873.—H. L. 
CLARK, Hawaiian and other Pacific Echini, Clypeastridae . . . Seutellidae, p. 
52, 1914; Catalogue of the Recent sea-urchins in the British Museum, p. 160, 
1925. 
Localities—Station 5164 (lat. 5°02’ N., long. 119°52’ E.); 33 ” 
meters; February 24, 1908. One dead broken test. 
Station 5181, off eastern Panay (lat. 11°37’ N., long. 123°27’ E.) ; 
48 meters; March 27,1908. Five dead partly broken tests. 
Station 5482 (lat. 10°38’ N., long. 120°12’ E.) ; 93 meters; April 8, 
1909. One dead broken test. 
Remarks.—A|though all these specimens are dead tests, partly rather 
badly broken, they appear to be referable to the species orbicularis, 
so that I have no doubt about the identification. The specimens from 
station 5181 are clearly of the variety concava, which I have estab- 
lished for some specimens from the Kei Islands (¢?. my Monograph of 
the Echinoidea, vol. 4, part 2). The other specimens are in too poor 
condition for deciding whether they belong to the variety or the 
typical form. 
PERONELLA MACROPROCTES Koehler 
Peronella macroprocies KorHLER, Echinoderma of the Indian Museum, Echi- 
noidea, pt. 2, p. 113, pl. 9, figs. 5, 11, 14; pl. 10, figs. 10-12; pl. 15, fig. 11, 1922. 
Localities —Station 5218, between Burias and Luzon (lat. 13°11’ N., 
long. 123°03’ E.) ; 37 meters; April 22, 1908. One specimen. 
Station 5356, North Balabac Strait (lat. 8°06’40’’ N., long. 
117°18’45’’ E.) ; 106 meters; January 5, 1909. One specimen. 
Remarks.—I have no doubt about identifying these specimens with 
the P. macroproctes Koehler, hitherto known only from the south coast 
of Ceylon (Investigator) ; I have, however, collected a good number 
of specimens at the Kei Islands, and new information about this 
species will be given in volume 4, part 2, of my Monograph of the 
Echinoidea. ‘The specimen from station 5218 is 29 mm. long and one 
of the largest specimens known. The peculiar broad-valved tridentate 
pedicellariae are well developed in this specimen. 
PERONELLA MINUTA (de Meijere) 
Laganum minutum DE MEWERE, Siboga Echinoidea, p. 125, pl. 6, figs. 76, 77; pl. 18, 
fig. 334, 1904. 
Peronella minuta H. L. CLARK, Hawaiian and other Pacific Echini, Clypeastridae 
... Scutellidae, p. 51, 1914. 
Localities —Station 5149, Sulu Archipelago (lat. 5°33’ N., long. 
120°42’10”’ E.) ; 18 meters; February 18, 1908. One dead test. 
