REPORT ON THE RADIOLARIA. 1049 



cylindrical, divergent, three to four times as long as the shell, with few irregular lateral branches 

 (often much more developed than in Ehrenberg's figure). 



Dimensions. Shell 0'036 long, 0'05 broad ; horn 0'05, feet 01 to 015 long. 



Habitat. Fossil in Barbados. 



Genus 454. Liriospyris, 1 Haeckel, 1881, Prodromus, p. 443. 

 Definition. Z ygospyrida with six basal feet and three coryphal horns. 



The genus Liriospyris differs from the preceding Hexaspyris, its ancestral form, 

 in the possession of three coryphal horns (one odd apical in the middle, and two paired 

 frontal horns on each side of it); it therefore bears to the latter the same relation that 

 Triceraspyris does to Tripospyris. 



1. Liriospyris hexapoda, n. sp. (PL 86, fig. 7). 



Shell subspherical, smooth, with slight sagittal stricture and irregular roundish pores ; two to 

 three pairs of large annular pores on each side of the stricture. Basal plate with four large 

 collar pores. Three horns and six feet nearly of the same size and of similar form, conical, divergent, 

 about one-third as long as the shell. 



Dimensions. Shell diameter 0'09 to 01 ; horns and feet 0'03 to 0'04 long. 



Habitat. Central Pacific, Stations 265 to 268, depth 2700 to 2900 fathoms. 



2. Liriospyris dathrata, Haeckel. 



Dictyospyris dathrus, Ehrenberg, 1854, Mikrogeol., Taf. xxxvi. fig. 25. 



Dictyospyris dathrata, Ehrenberg, 1875, Abhandl. d. k. Akad. d. Wiss. Berlin, p. 68, 



Taf. xix. fig. 7. 

 Dictyospyris dathrata, Biitschli, 1882, Zeitschr. f. Wiss ZooL, voL xxxvi. pp. 506, 539 ; 



Taf. xxxii. figs. 10a, 106. 

 Petalospyris duthrus, Haeckel, 1862, Monogr. d. Radio!., p. 295. 



Shell campanulate or nearly spherical, smooth, with slight sagittal stricture. Three pairs of 

 large annular pores on each side of the stricture ; a few smaller irregular pores on the lateral sides. 

 Basal plate with six large collar pores (Biitschli, loc. cit., fig. 10a). Three horns and six feet nearly 

 of the same size and form; short, conical, slightly divergent or nearly parallel, shorter than half the 

 ring. (The size of the nine appendages is in this common species rather variable ; sometimes 

 they are rudimentary, at other times much stronger than in the good figure of Biitschli.) 



Dimensions. Shell diameter 0'08 to 0'09, horns and feet O'Ol to 0'03. 



Habitat. Cosmopolitan ; Mediterranean, Atlantic, Pacific ; also fossil in Barbados and Sicily. 



1 Liriospyris = Lily-basket ; ^ii^iov, UWQI'S. 

 (ZOOL. CHALL. BXP. PART XL. 1886.) Er 132 



