REPORT ON THE RADIOLARIA. 1109 



3. Botryopera quadriloba, Haeckel. 



Lithobotrys quadriloba, Ehrenberg, 1844, Monatsber. d. k. preuss. Akad. d. Wiss. Berlin, p. 84. 



Cephalis quadrilobate ; the occipital lobe helmet-shaped, one and a half times as long as the two 

 paired hemispherical buccal lobes, and twice as large as the anterior frontal lobe. Pores not 

 numerous, rather large, circular. 



Dimensicms. Length of the shell 0'06, breadth 0'04. 



Habitat. Fossil in Barbados and North America (Virginia). 



4. Botryopera quinqueloba, n. sp. (PL 96, fig^ 2). 



Cephalis quinquelobate ; the occipital lobe helmet-shaped, and twice as long as the two hemi- 

 spherical frontal lobes, three times as long as the subspherical lateral buccal' lobes. Pores scarce, 

 small, circular. 



Dimensions. Length of the shell 0'07, basal breadth 0'05;. 



Habitat. North Pacific, Station 253, depth 3125 fathoms. 



5. Botryopera multiloba, n. sp. 



Cephalis multilobate ; the posterior odd occipital lobe ovate, and of about the same size as the 

 anterior frontal half of the shell, which is clustered and divided into five to seven smaller lobes, an odd 

 subspherical sternal lobe, and on each side of it two or three pairs of smaller subspherical lobes. 



Dimensions. Length of the shell 0'09, breadth 0'06. 



Habitat. Western Tropical Pacific, Station 225, depth 4475 fathoms. 



Genus 487. Cannobotrys, 1 Haeckel, 1881, Prodromus, p. 440. 

 Definition. C annobotryida with tubes on the cephalis. 



The genus Cannobotrys differs from the preceding Botryopera in the development 

 of hollow radial tubes, arising from the lobate cephalis in various numbers. According 

 to their number the genus may be divided into various subgenera : (1) Cannobotrantha 

 (monocanna) with a single apical tube ; (2) Cannobotrella (dicanna) with two divergent 

 tubes, an ascending apical and a descending sternal one ; (3) Cannobotrissa (tricanna) 

 with three tubes in the sagittal plane (an upper apical, a posterior caudal, and an 

 anterior sternal) ; (4) Cannobotromma (tetracanna) with four radial tubes disposed like 

 the four typical spines of Cortina (compare p. 950), and Cannobotrusa (pentacannd) 

 with five radial tubes disposed like the five typical spines of Stephanium (p. 952). 



1 Cannobotrys= Grape with tubes; xauna, 



