REPORT ON THE ECHINOIDEA. 171 



which the young even do not have any. In fact, the general facies of the younger 

 specimens is more like Eupatagus than Paleopneustes. The number of large primary 

 tubercles is comparatively small ; they are larger, and the abactinal surface is sparsely 

 covered with large curved sj^ines. giving the young specimens the general appearance of a 

 Maretia, with few spines (PI. XXXV.'^ figs. 9, 9^). It is only in later stages that the 

 disproportion between the secondary and primary spines disappears, and that the test 

 when covered with spines resembles the specimens figured on Plate XXV. 



Station 210. January 25, 1875. Lat. 9° 26' N., long. 123° 45' E. ; 375 fathoms; 

 bottom temperature, 12"2° C. ; mud. 



Station 232. May 12, 1875. Lat. 35° 11' N., long. 139° 28' E. ; 345 fathoms; 

 bottom temperature, 5*0° C. ; sandy mud. 



Spat ANGINA.^ 



Sub-family Spatangina, Gray, 1855, Cat. Eec. Ech. 



Spatcuigus. 

 Spatangus, Klein, 1734, Nat. Disp. Ech. 



Spatangus purpureus. 



Spatagm purpureus, Miill., 1776, Prod. 2850. 

 Spatangus purpureus, Leske, 1778, Kl. Add., p. 170. 



The existence of this species at the Bermudas is interesting as forming a link between 

 the localities from the Eastern Atlantic, where it had been known previously, and its occur- 

 rence in the eastern part of the Caril^bean Sea, where it has been dredged by the " Blake." 



Station 75. July 2, 1873. Lat. 38° 37' N., long. 28° 30' W. ; 50 to 90 fathoms; 

 sand. 



Ofi" Bermudas-; 100 fathoms. 



Spatangus raschi. 



Spatangus Raschi, Lovi^n, 1869, Ofv. Skand. Vet. Akad. Forh. 



This species with its high test and small tuberculation is far more closely allied to the 

 Tertiary species of Spatangus, like Spatangus delphinus, than to the common Spatangus 

 jmrpureus. Its geographical range is also quite extensive, extending from the northern 

 part of the Eastern Atlantic to the Cape of Good Hope. 



Station 142. December 18, 1873. Lat. 35° 4' S., long. 18° 37' E. ; 150 fathoms; 

 bottom temperature, 8 '3° C. ; sand. 



AgulhasBank; 100 fathoms. 



1 Not Euspatangina, A. Agassiz, as in Re vis, Ech., p. 219. 



