REPORT ON THE ECHINOIDEA—MORTENSEN 39 
121°49’15’" E.); 570 meters; bottom temperature 9.61° C.; gray 
mud and globigerinae; June 3, 1908. One specimen. 
Station 5282; China Sea, in the vicinity of southern Luzon; Mal- 
avatuan Island (N.) bearing S. 84° W., 6.2 miles distant (lat. 
13°538'00’’ N., long. 120°26’45’” E.) ; 453 meters; bottom temperature 
8.56° C.; dark gray sand; July 18, 1908. One specimen. 
Station 53825; off northern Luzon; Hermanos Island (N.) bearing 
N. 86° E., 16.75 miles distant (lat. 18°34’15”’ N., long. 121°51’15’’ E.) ; 
409 meters; bottom temperature 11.78° C.; green mud; November 
12, 1908. Two specimens. 
Station 5430; in the vicinity of eastern Palawan; Fondeado Is- 
lands (W.) bearing N. 57° W., 10.5 miles distant (lat. 9°49’40’ N., 
long. 119°03’20” E.); 848 meters; bottom temperature 10.00° C.; 
globigerina ooze; April 6, 1909. One specimen. 
Remarks.—The specimen from station 5430 is a large and splendid 
example, 30 mm. in horizontal diameter and, together with the type 
specimen of C’. annulata, among the finest specimens of Caenopedina 
known up to the present. The other specimens range from 23 to 26 
mm. in horizontal diameter but are not so finely preserved. 
Order CAMARODONTA 
Family TEMNOPLEURIDAE 
Genus PRIONECHINUS A. Agassiz 
PRIONECHINUS FORBESIANUS (A. Agassiz) 
Cottaldia forbesiana A. AaGassiz, Challenger Reports, Zoology, vol. 3, pt. 9, 
p. 112, pl. 6a, figs. 15-17, 1881. 
Arbacina forbesiana MorTEeNsEN, Ingolf Echinoidea, pt. 1, p. 83, pl. 7, figs. 22, 
26, 32; pl. 8, fig. 33, 1903. 
Prionechinus forbesianus DE MEIJERE, Siboga Echinoidea, p. 71, pl. 4, figs. 33, 
34; pl. 16, figs. 250-255, 1904.—H. L. Criark, Hawaiian and other Pacific 
Echini, Pedinidae, ete., p. 304, 1912; Catalogue of the recent sea-urchins 
in the British Museum, p. 79, 1925. 
Localities —Station 5112; China Sea, off southern Luzon; Som- 
brero Island bearing S. 18° E., 6.75 miles distant (lat. 138°48’22”” N., 
long. 120°47’25’’ E.); 324 meters; bottom temperature 11.33° C.; 
dark green mud; January 17, 1908. One very young specimen— 
identification uncertain. 
Station 5123; east coast of Mindoro; Malabrigo Light bearing N. 
44° W., 32.5 miles distant (lat. 13°12’45’’ N., long. 121°38’45’’ E.) ; 
517 meters; green mud; February 2, 1908. One fine adult specimen. 
Station 5411; between Cebu and Bohol; Lauis Point Light bear- 
ing N. 35° E., 4.7 miles distant (lat. 10°10’30’’ N., long. 123°51’15”’ 
K.) ; 265 meters; bottom temperature 12.89° C.; green mud; March 
23, 1909. One young specimen. 
