260 BULLETIN 100, UNITED STATES NATIONAL MUSEUM 



small tubercles, only one longitudinal series of smaller tubercles re- 

 maining distinct within the marginal series, while in smaller speci- 

 mens in addition a second inner series of small tubercles is generally 

 distinct. 



Genus PLOCOCIDARIS Mortensen 



PLOCOCIDARIS VEETICILLATA (Lamarck) 



PhyUacanthus verticillata A. Agassiz, Illustr. Cat. Mus. Comp, Zool., No. 7, 

 pt. 3 [Mem. Mus. Comp. Zool., vol. 3], 1873, p. 392, pi. lc, figs. 40-42; 

 pi. 1/, fig. 3. — Doderlein, Die japanischen Seeigel, I, Familieu Cidari- 

 dae und Saleniidae, 1887, p. 22, pi. 9, figs. 8, a-i, — H. L. Clark, Bull. 

 Mus. Comp. Zool., vol. 51, No. 7, 1907, p. 187. 



Plococidaris verticillata Th. Mortensen, Deutsche Siidpolar-Exped. 1901- 

 1903, vol. 11, pt. 1, 1909, pp. 50, 53. 



Prionocidaris verticillata Doderlein, Abhandl. Senckenberg. naturf. Ges., 

 vol. 34, 1911, pp. 242, 243. 



Localities. — Station 5159; Tawi Tawi group, Jolo (Sulu) Archipel- 

 ago; Tinakta Island (N.) bearing N. 82° W., 1.4 miles distant (lat. 

 5° 11' 50" N.,long. 119° 54' 00" E.); 18 meters; coral sand; Feb- 

 ruary 21, 1908 (1 specimen, Cat. No. E. 1280, U.S.N.M.). 



Tataan, Simulac Island; February 19, 1908 (1 specimen, Cat. No. 

 E. 1289,U.S.N.M.). 



Batan anchorage; June 22, 1909 (1 specimen, Cat. No. E. 1383, 

 U.S.N.M.). 



Genus EUCIDARIS Pomel 



EUCIDARIS METULARIA (Lamarck) 



Cidaris metularia H. L. Clark, Ball. Mas. Comp. Zool., vol. 51, No. 7, 1907, 



p. 184. 

 Eucldaris metularia A. Agassiz and H. L. Clark, Mem. Mus. Comp. Zool., 



vol. 34, No. 1, 1907, p. 5, pi. 1, figs. 3-7.— H. L. Clark, Cat, Recent 



Sea-urchins Brit. Mus., 1925, p. 20. 



Localities. — Station 5108; China Sea, off southern Luzon; Cor- 

 regidor Light bearing N. 39° E., 22.5 miles distant (lat. 14° 05' 05" 

 N., long. 120° 19' 45" E.); 23 meters; coral bottom; January 15, 

 1908 (5 specimens, Cat. No. E. 1371, U.S.N.M.). 



Station 5249; Gulf of Davao; Lanang Point bearing N., 1 mile dis- 

 tant (lat. 7° 06' 06" N., long. 125° 40' 08" E.); 41 meters; coral and 

 sand; May 18, 1908 (1 specimen, Cat. No. E. 1369, U.S.N.M.). 



Station 5257; eastern Illana Bay, southern Mindanao; Utara Point, 

 Bongo Island, bearing N. 88° W., 7.7 miles distant (lat. 7° 22' 12" N., 

 long. 124° 12' 15" E.) ; 50 meters; mud; May 22, 1908 (1 very young 

 specimen, Cat. No. E. 1389, U.S.N.M.). 



Philippines, with no further data (3 specimens, Cat. No. E. 1380, 

 U.S.N.M.). 



