Report on Foraminifcra. By F. IV, Millett. 273 



Brady writes, " Sagrina raphanus is essentially a coral-reef 

 Foraminifer," and then specifies a number of Stations, the depths 

 ranging from 2 to 260 fathoms. The solitary ' Gazelle ' example is 

 from Mauritius, 225 fathoms. 



Sagrina tessellata Brady, plate V. fig. 16. 



Sagrina (?) tcssettata Brady, 1884, Chall. Kept., p. 585, pi. lxxvi. 

 figs. 17-19. 



Of this very rare and doubtful form several examples have been 

 found in the material from Station 2, in Area 1. Externally they 

 agree in all respects with the figures of the ' Challenger ' specimens ; 

 but internally the chambers are subdivided into chamberlets by 

 transverse septa, usually from eight to ten in each chamber. 



According to Brady his knowledge of the species was derived 

 from two or three specimens from ISTares Harbour, Admiralty 

 Islands, 17 fathoms, and Raine Island, Torres Strait, 155 fathoms. 



Sagrina limbata Brady, plate V. figs. 17-19. 



Sagrina limbata Brady, 1884, Chall. Eept., p. 586, pi. cxiii. 

 fig. 14. S. limbata (Brady) Howchin, 1889, Trans. E. Soc. S. 

 Australia, vol. xii. p. 11, pi. i. fig. 7. 



Of this very rare and little understood form a solitary example 

 lias been found in the material from Station 2, in Area 1. Un- 

 fortunately the specimen has been mislaid, but the finder, Charles 

 Elcock of Belfast, had previously made a drawing of it, and a copy 

 of this appears on the plate (fig. 17). 



Brady's diagnosis of the species was made from ill-grown 

 examples, and is necessarily imperfect. Having myself been 

 especially fortunate in finding examples in the material from Raine 

 Island, kindly sent me by Sir John Murray of the ' Challenger ' 

 office, I am in a position to add to Brady's description. Essentially 

 the test is composed of a series of elongate-oval chambers, usually 

 four in number, as shown by fig. 18 ; these chambers, as in 

 >$'. tessellata, are subdivided into chamberlets by transverse septa 

 which are well shown in the abraded specimen, fig. 19. Brady 

 was unaware of these characters until he had examined my speci- 

 mens shortly after the publication of the ' Challenger ' Report on 

 the Foraminifera, and his figure does not represent them. How- 

 chin's drawing represents a much more characteristic example and 

 indicates the division of the test into chambers. In several speci- 

 mens the initial chamber is broad at the base, and obliquely trun- 

 cated as shown in fig. 18. 



The division of the chambers by transverse septa is not a 

 character ot the genus Sagrina, and further researches will prob- 



