70 



BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



Mindanao, 1,570 fathoms (2,871 meters), no bottom temperature 

 given; and D5637, vicinity Bouro Island, 700 fathoms (1,280 meters), 

 no bottom temperature given. 



Reophax guttifer — Material examined. 



REOPHAX ADUNCUS H. B. Brady. 



Plate 19, fig. 3. 



Reophax adunca H. B. Brady, Proc. Roy. Soc. Edinburgh, vol. 11, 1882, p. 715; 

 Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 296, pi. 31, figs. 23-26.— Cushman, 

 Bull. 71, U. S. Nat. Mus., pt. 1, 1910, p. 89, fig. 125 (in text). 



In many ways this is an uncertain species to determine. Speci- 

 mens from four stations may be referred to it: D5190, Tanon Strait, 

 east coast of Negros Island, 295 fathoms (540 meters), bottom tem- 

 perature 63° F. (17.2° C.) ; D5478, between Samar and Leyte, 57 

 fathoms (104 meters); D5481, the neighboring station, 61 fathoms 

 (HI meters); and D5538, between Negros and Siquijor, 256 fathoms 

 (468 meters), bottom temperature 53.3° F. (11.8° C). 



Reophax adunaus — Material examined. 



REOPHAX CYLINDRICUS H. B. Brady. 



Plate 13, fig. 1. 



Reophax cylindrica H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 

 299, pi. 32, figs. 7-9.— Cushman, Bull. 71, U. S. Nat. Mus., pt. 1, 1910, p. 91, 

 figs. 129-131 (in text). 



At one station, D5276, China Sea, off southern Luzon, 18 fathoms 

 (33 meters), specimens were found in considerable numbers which 

 are apparently this species. They are slightly more constricted than 

 shown in Brady's figures, but in all other respects are the same. The 

 occurrence of this species, especially in such shallow water, at a low 



