THE FAMILY ASTROEHIZID^ 115 



Genus StorthosjjJicera, Schulze. 



Test subglobular, very irregular externall}- ; 

 apertures numerous, situated in horn-like protube- 

 rances ; interior smooth. 



Example. — S. alhida^ Schulze, ' II. Jahresberichte 

 d. komm. Untersuch. d. deutsch. Meere,' Berlin, 

 1874, p. 113, pi. ii. figs. 9rr-r7. 



This genus is represented by a single species 

 only, which until lately seemed to be restricted in its 

 habitat to the N. Atlantic, where it was found off 

 the coast of Norway, the Faroe Channel, and the 

 Bay of Biscay, all in moderately deep water. A 

 doubtful worn example was obtained from the 

 S. Atlantic in 1,900 fathoms by the ' Challenger.' 

 Dr. Flint records it from the Gulf of Mexico at 

 730 fathoms (' Albatross ' Collection), and it has also 

 been found by Dr. Egger in the ' Gazelle ' dredgings. 

 of! Western Australia. Becent. (Plate 5, fig. C.) 



Genus DouJrophrya^ Steethill Wright. 



Test adherent, formed of mud with a chitinous 

 basis ; either irregularly outspread or columnar and 

 branching. Pod-Tertiary. Recent. 



Example. — B. radiata, Str. Wright, 'Ann. and 

 Mag. Nat. Hist.' ser. 3, vol. viii. 1861, p. 122; 

 Brady, ' Rep. " Chall." ' vol. ix. 1884, p. 238, pi. xxvi. 

 A, figs. 10-12. 



This shallow-water form is allied in structure to 

 Astrorhiza, but the test is very variable in foruL It 



I '2 



