6 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 9I 



The madreporite is very small and is situated about one-third of 

 the distance between the anus and the interradial angle. It is naked, 

 shows a few coarse irregular striations, and is almost concealed by 

 the spinelets on the adjacent plates. 



There are 14 superomarginals which are somewhat smaller than 

 the plates above them, and are transversely elongate and oblique. 

 Each bears 6-9 spinelets. 



The inferomarginals number 14. They bear a diagonal terminal 

 comb of 3-5 (commonly 4) stout, subconical, more or less flattened, 

 echinulate spines on their outer ends, in addition to the spinelets 

 described for the Caroline specimen on the abactinal and actinal 

 surfaces. 



The actinal plates each have one or two slender and sharp spinelets. 



Localiiies.- — Blake station 62 Ag. ; oft" Havana, Cuba ; 80 fathoms ; 

 1877-78 (Perrier, 1883). 



Blake station 292 ; off Barbados (lat. I3°i3'55" N., long. 59°38'5o" 

 W.) ; 56 fathoms; bottom temperature 74.5° F. ; bottom, coral, sand, 

 and broken shell; March 9, 1879 (Perrier, 1883). 



Caroline station 102 ; northeast of Puerto Rico (lat. i8°5i' N., long. 

 64°33' W.) ; 140 fathoms; March 4, 1933 (i, U.S.N.M. no. E.5599; 

 original no. 678). 



Remarks. — Profs. Walter K. Fisher and Hubert Lyman Clark 

 have both been so kind as to examine the Caroline specimen, and we 

 are all three in agreement regarding its disposition. 



LOPHASTER VERRILLI, n. sp. 



Lophaster radians Verrill, Univ. Iowa, Bull. Lab. Nat. Hist., vol. 7, no. i, p. 51, 

 pi. 5, fig. 2; pi. 7, fig. 3; pi. 9, figs, i-ic; March 20, 1915. 



Notes. — Prof. Addison E. Verrill in 191 5 described in detail 

 and figured a species that he regarded as representing Perrier's 

 Korcthraster radians. According to his description and figures, what 

 he had was not Perrier's species, but a true Lophaster. A specimen 

 at hand from Albatross station 2415 agrees with his description and 

 figures, and was labeled by him Lophaster radians. This specimen 

 measures R = 35 mm, r=io mm. The largest specimen mentioned 

 by him measured R = 40 mm, r=:i7 mm. This species may be called 

 Lophaster verrilli. 



Localities. — Albatross station 2415; off Fernandina, Fla. (lat. 

 30°44'oo" N., long. 79°26'oo" W.) ; 440 fathoms; coral, coarse sand, 

 shells, and f oraminif era ; April i, 1885 (U.S.N.M. no. 10512). 



Several Albatross stations in the West Indies (Verrill). 



