98 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 
Localities.—Station 5159, Tinakta Island, Tawi Tawi Group (lat. 
5°12’ N., long. 119°54’ E.); 18 meters; February 21, 1908. Two 
specimens. 
Station 5160, Tinakta Island (lat. 5°12’40’’ N., long. 119°55’ E.) ; 
22 meters; February 22, 1908. One specimen. 
Station 5218, between Burias and Luzén (lat. 13°11’15’’ N., long. 
123°02’45’" E.); 387 meters; April 22, 1908. One young specimen. 
Remarks.—These specimens are all of the relatively flat type, with 
the edge only moderately thick (5.5 mm. in the largest specimen) ; it 
will be dealt with more in detail in the forthcoming volume 4, pt. 2, of 
my Monograph of the Echinoidea. The specimen from station 5218 is 
a small one, 15.5 mm. long, but has the genital pores fully developed; 
it has the aboral side of the test distinctly sculptured, as_is character- 
istic of young specimens of this species. It is of a uniform yellowish 
color, as is also the specimen from station 5160, while the two somewhat 
larger specimens from station 5159 (30 and 38 mm. long, respectively) 
show traces of the reddish marginal spots commonly found in this 
species. : 
CLYPEASTER (RHAPHIDOCLYPUS) FERVENS Koehler 
Clypeaster fervens KoEHLER, Echinoderma of the Indian Museum, Echinoidea, 
pt2, p: 45;*pls'6, ‘figs! 3256s pls 13, fig, 6s pl. 155 figs 11922: 
Locality —Station 5640, Buton Strait (lat. 4°27’ S., 122°55’40” E.) ; 
45 meters; December 13,1909. One specimen. 
Remarks.—The single specimen is a dead test, 67 mm. long, 57 mm. 
broad, 14mm. high. The petaloid area is 88 mm., thus somewhat more 
than half the test length. The edge of the test is about 6 mm. thick, 
or about one-tenth of the test length. 
In the outline of the test this specimen agrees with Clypeaster 
fervens, particularly with the specimens collected by the Murray 
Expedition. The markedly concave oral side is as typical of fervens. 
The specimen, however, differs from fervens in one character—the 
somewhat narrower petals. Whether this means that it is specifically 
different from the typical fervens is impossible to tell with only a 
single naked test at hand. For the present, at least, I cannot hesitate 
in referring this specimen to @. fervens, otherwise known only from 
the Indian Ocean. 
CLYPEASTER (LEPTOCLYPUS) ANNANDALEI Koehler 
Clypeaster annandalei KorEHter, Echinoderma of the Indian Museum, Echinoidea, 
pt. 2, p. 16, pl. 1, figs. 1-7; pl. 2, figs. 1-11; pl. 3, figs. 6-9; pl. 5, fig. 3; pl. 10, 
fig. 7 ; pl. 14, fig. 1, 1922. 
Locality.—Station 5381, Ragay Gulf, Luzon (lat. 138°14’15’’ N., long. 
122°44’45”’ FE.) ; 160 meters; March 6, 1909. Three specimens. 
